Best Heatsinks for GPU in 2026: 15 Picks Ranked by Specs
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Finding the right heatsink for GPU cooling depends on physical clearance and direct thermal contact. To help you select the proper hardware, we compared 15 products using the specifications published on each listing.
The NEW Games Order PS3 Copper Heatsink Shims takes the top position because its 1.2mm thick polished copper plates deliver large-area thermal bridging across exact 42mm dimensions. This guide helps you determine whether individual component fins, multi-gauge shim assortments, or dedicated plates best fit your GPU clearance and cooling requirements.
Quick picks
The best fit for you
- You need copper plates for PS3 GPU thermal repairs NEW Games Order PS3 Copper Heatsink Shims It provides two 1.2mm thick polished copper plates sized at 42mm bundled with Arctic Silver 5 compound.
- You need ultra thin copper pads with integrated adhesive Easycargo 15x15x0.5mm Copper Shims 20-Pack It supplies twenty 0.5mm thick copper pads featuring integrated thermal tape for low-clearance installations.
- You need maximum surface area for passive GPU cooling Awxlumv 150mm Large Aluminum Heatsink This aluminum cooler features a large 150mm by 93mm profile packed with 294 cooling fins.
- You need many shim thicknesses for custom gap adjustments Easycargo 100-Piece 15mm Copper Shim Kit This 100-piece kit provides pure C1100 copper plates across 12 distinct thicknesses.
Our 15 picks
NEW Games Order PS3 Copper Heatsink Shims
Best for: PS3 GPU and CPU thermal repairs
- Compatible Device
- GPU (what this guide is about)
- Material
- 100% copper
- Dimensions
- 6.7 × 4.1 × 1.4 inches
- Weight
- 1 pounds
This kit includes two 42mm by 42mm polished copper shims and a 3.5g tube of Arctic Silver 5 thermal paste. Each shim measures 1.2mm in thickness, designed for installation between your GPU or CPU and heatsink. It suits you if you need wide, 100% copper thermal shims to bridge gaps in a PlayStation 3 or compatible graphics processor assembly.
Pros
- Made of 100% cut and polished copper
- Includes a 3.5g tube of Arctic Silver 5 thermal paste
- Large 42mm x 42mm surface area with 1.2mm thickness
- Includes two matched copper plates
Cons
- Fixed 1.2mm thickness with no alternative gauges included
- Provides only two shims per package
- No pre-applied thermal adhesive
Good fit if
- You need 42mm x 42mm copper plates to bridge a 1.2mm gap on a GPU or CPU.
- You want bundled thermal paste included with your shims.
- You are servicing a PlayStation 3 GPU or CPU cooling interface.
Skip if
- You need thinner shims or an assortment of different thicknesses.
- You require small 10mm to 15mm heatsinks for discrete VRAM chips.
- You prefer pre-applied thermal tape over paste.
Verdict: NEW Games Order 42mm Copper GPU Shims provide two 1.2mm thick polished copper plates bundled with Arctic Silver 5 compound. They deliver large-area thermal bridging for GPU and CPU repairs requiring exact 42mm dimensions.
JIUWU 15x15x0.8mm Copper Heatsink Shims
Best for: laptop GPU thermal gap spacing
- Compatible Device
- GPU, Laptop (what this guide is about)
- Material
- High Purity Copper
- Dimensions
- 15mm x 15mm x 0.8mm
- Length
- 0.59 inches
- Width
- 0.59 inches
- Weight
- 0.32 ounces
The JIUWU 15x15x0.8mm Copper Pad Shims pack gives you 20 individual copper thermal shims sized for laptop GPU and CPU cooling. Each pad measures 15mm by 15mm with a 0.8mm thickness to bridge component gaps. Built from solid copper, they transfer heat directly from your graphics silicon to your existing heatsink. This pack suits you if you need uniform 0.8mm copper spacers for laptop GPU maintenance or thermal gap fills.
Pros
- Solid copper construction for direct thermal conductivity
- 20-piece pack provides multiple replacement shims
- Uniform 15mm x 15mm dimensions fit compact laptop chips
- Precise 0.8mm thickness bridges specific clearance gaps
Cons
- Single fixed 0.8mm thickness with no assortment sizes included
- No pre-applied thermal adhesive listed
Good fit if
- You need 15mm x 15mm copper shims with a specific 0.8mm thickness for your laptop GPU.
- You require a 20-pack of identical copper pads for multiple installations or replacements.
Skip if
- You need an assortment kit with mixed thicknesses or larger pad sizes.
- You want pre-applied thermal tape rather than plain bare copper pads.
Verdict: JIUWU 15x15x0.8mm Copper Pad Shims (20-Pack) provides twenty identical 0.8mm-thick copper shims designed to bridge thermal gaps on laptop GPUs and CPUs. It is an effective hardware choice when your GPU cooling assembly requires precise 0.8mm metal spacing.
JIUWU 20x20mm Copper Pad Shim
Best for: GPU thermal gap bridging at 0.8mm clearance
- Compatible Device
- GPU (what this guide is about)
- Material
- copper
- Dimensions
- 20 x 20 x 0.8mm
- Length
- 0.79 inches
- Width
- 0.79 inches
- Weight
- 1.6 ounces
This copper heatsink shim measures 20 x 20 x 0.8mm and weighs 0.1 pounds. Made from solid copper, it transfers heat directly from heat-sensitive chips to your cooling assembly. You place it on GPU dies, IC chipsets, or laptop components requiring thermal bridging. It suits you if you need a precise 0.8mm copper spacer to bridge flat gaps on graphics processors without replacing entire heatsink units.
Pros
- Pure copper material provides direct heat conductivity
- Specific 20 x 20 mm footprint covers square GPU dies
- 0.8 mm thickness bridges precise component gaps
- Lightweight package design at 0.1 pounds total weight
Cons
- No pre-applied thermal adhesive listed
- Fixed 20 x 20 mm dimension cannot be cut down
Good fit if
- You need a 0.8mm thick thermal spacer for a GPU gap.
- You have a square 20 x 20mm chip contact area.
Skip if
- You require pre-applied adhesive tape on the shim.
- You need a smaller 15 x 15mm or 10 x 10mm pad footprint.
Verdict: JIUWU 20x20mm Copper Pad Shim delivers a dedicated 0.8mm thick copper interface for GPU and laptop thermal gap bridging. It provides exact spacing without extra bulk when your cooling setup requires metal-to-metal heat transfer.
Honbay 15x15mm Copper Heatsink Pads
Best for: Variable-gap laptop GPU thermal shim modifications
- Compatible Device
- GPU (what this guide is about)
- Material
- Copper
- Dimensions
- 15*15mm
- Weight
- 4 ounces
The Honbay copper heatsink pad set provides 25 individual 15x15mm copper shims designed for GPU and CPU thermal management. You get five distinct thickness options—0.3mm, 0.5mm, 0.8mm, 1.0mm, and 1.2mm—with five pieces included for each size. This assortment suits you if you need to bridge varying clearance gaps between laptop graphics chips and stock cooling assemblies without committing to a single fixed shim thickness.
Pros
- Includes 25 copper shims across 5 thicknesses
- Provides 0.3mm, 0.5mm, 0.8mm, 1.0mm, and 1.2mm options
- Uniform 15x15mm footprint matches compact laptop GPU dies
Cons
- No thermal adhesive or tape included in the package
- Limited strictly to a 15x15mm surface area
Good fit if
- You need multiple thickness choices to match unknown GPU gap sizes.
- You service laptop GPU or CPU chipsets requiring 15x15mm shims.
Skip if
- You require pre-applied thermal adhesive on each shim.
- You need cooling components larger than 15x15mm.
Verdict: Honbay 15x15mm Copper Heatsink Pad Set delivers a multi-gauge copper shim assortment tailored for filling precise clearance gaps over GPU dies.
Alphacool 10 x 10mm Copper RAM Heatsinks
Best for: GPU RAM modules and MOSFET passive cooling
- Compatible Device
- GPU, RAM (what this guide is about)
- Material
- Copper
- Cooling Method
- Passive
- Dimensions
- 10 x 10mm
- Weight
- 0.07 kilograms
The Alphacool 10x10mm Copper GPU RAM Heatsinks are compact passive coolers designed for secondary board components. Each unit measures 10 x 10mm and features pure copper construction to dissipate heat from GPU RAM modules or MOSFETs. You get 10 heatsinks in the pack to cover multiple chips across your graphics card. This set suits you if you need low-profile, targeted copper cooling for individual power delivery components or memory modules.
Pros
- Pure copper construction for passive heat transfer
- Compact 10 x 10mm dimensions fit small surface-mount chips
- 10-pack provides coverage for multiple board components
- Specified for GPU RAM modules and MOSFETs
Cons
- No thermal adhesive or tape listed in the specifications
- 10 x 10mm footprint is too small for primary GPU processor dies
Good fit if
- You need passive heatsinks sized specifically for 10 x 10mm GPU RAM or MOSFET chips.
- You prefer copper material over aluminum for component cooling.
- You have up to 10 individual chips requiring dedicated heatsinks.
Skip if
- You need a large single heatsink to cool an entire graphics processor.
- You require heatsinks with factory-applied thermal adhesive included.
Verdict: Alphacool 10x10mm Copper GPU RAM Heatsinks deliver dedicated copper cooling for small board components like video memory and MOSFETs. They provide a practical multi-pack solution when you need passive cooling for specific hot spots on your GPU.
Alphacool 14 x 14mm Copper Heatsinks 10-Pack
Best for: cooling individual 14 x 14mm GPU RAM chips
- Compatible Device
- GPU, RAM (what this guide is about)
- Material
- Copper
- Cooling Method
- Passive
- Dimensions
- 14 x 14mm
- Weight
- 3.84 ounces
View on Amazon: Alphacool 14 x 14mm Copper Heatsinks 10-Pack
The Alphacool 14 x 14mm Copper Heatsinks 10-Pack provides dedicated passive cooling for your GPU RAM modules and MOSFETs. Each unit in this ten-piece set features a pure copper build and a square 14 x 14mm footprint designed to sit directly on individual board components. If you need solid metal heat dissipation for memory chips without using large unified plates, this multi-pack gives you targeted component-level coverage for your card.
Pros
- Pure copper construction
- Individual 14 x 14mm square dimensions
- Includes 10 heatsinks per pack
- Compatible with GPU RAM modules and MOSFETs
Cons
- No thermal tape or adhesive listed in specifications
- Fixed 14 x 14mm size does not fit smaller chipsets
Good fit if
- You need individual copper heatsinks sized specifically for 14 x 14mm GPU RAM.
- You require a 10-piece pack to cover multiple surface-mount components.
Skip if
- You need mounting tape or pre-applied thermal adhesive included in the package.
- You have surface components that require smaller or non-square dimensions.
Verdict: Alphacool 14 x 14mm Copper Heatsinks 10-Pack delivers pure copper passive heat dissipation tailored for individual 14 x 14mm GPU memory chips and MOSFETs.
Easycargo 15x15x0.5mm Copper Shims 20-Pack
Best for: Laptop GPU and VRAM low-clearance thermal spacing
- Compatible Device
- GPU, Laptop, RAM (what this guide is about)
- Material
- Copper
- Cooling Method
- passive
- Dimensions
- 15x15x0.5mm
- Mounting Type
- Pre applied adhesive tape backing
- Features
- Thermal Tape
This set includes 20 copper pad shims measuring 15 by 15 millimeters with a 0.5-millimeter thickness. Each pad features pre-applied 3M 8810 thermal conductive adhesive tape backing for mounting. If you need low-profile passive cooling for a laptop GPU, VRAM, or small IC chipsets, this pack gives you 20 matching pieces ready for tight clearances.
Pros
- Includes 20 copper pad shims in the pack
- Pre-applied 3M 8810 thermal conductive adhesive tape
- Low 0.5 mm profile fits tight vertical clearances
- Solid copper material provides passive thermal conduction
Cons
- Fixed 0.5 mm thickness with no other size options included
- Single 15 x 15 mm footprint does not fit non-square chips
Good fit if
- You need 15 x 15 mm copper shims with pre-applied adhesive tape.
- You have a 0.5 mm vertical gap over a laptop GPU, VRAM, or IC chip.
Skip if
- You need an assortment of different shim thicknesses.
- You require heatsinks with extended cooling fins for active airflow.
Verdict: Easycargo 15x15x0.5mm Copper Shims with 3M Tape delivers twenty uniform copper pads with integrated thermal adhesive backing for compact electronics. It serves setups that require a consistent 0.5 mm gap filler for laptop GPUs and VRAM modules.
Easycargo 9mm Copper VRM Heatsinks
Best for: compact GPU VRM and VRAM passive cooling
- Compatible Device
- GPU, VRM (what this guide is about)
- Material
- Copper
- Cooling Method
- passive
- Dimensions
- 9mm x 9mm x 4mm
- Mounting Type
- Pre applied adhesive tape backing
- Features
- Thermal Tape
The Easycargo 9x9x4mm Copper Heatsink 10-Pack provides miniature copper cooling blocks designed for GPU components like VRMs and VRAM. Each unit measures 9mm by 9mm with a 4mm profile, making them suitable if you need passive heat dissipation in tight clearances. With pre-applied thermal conductive adhesive tape, you can attach them directly to surface-mount components without extra mounting hardware. This set fits small-scale component cooling across your graphics card setup.
Pros
- Pure copper construction for passive heat transfer
- Pre-applied thermal conductive adhesive tape
- Compact 9mm x 9mm x 4mm footprint fits tight spaces
- Includes 10 heatsinks in the pack
Cons
- Fixed 9mm x 9mm footprint cannot be trimmed or resized
- Pack size limited to 10 individual pieces
- Low 4mm height provides less surface area than taller heatsinks
Good fit if
- You need passive cooling for 9x9mm GPU VRMs, VRAM, or MOSFETs.
- You want pre-applied adhesive tape for tool-free installation.
- You have low-clearance constraints requiring a 4mm profile.
Skip if
- You need large-format heatsink plates for full GPU core coverage.
- You need more than 10 heatsinks to cover all board components.
Verdict: Easycargo 9x9x4mm Copper Heatsink 10-Pack delivers compact passive copper cooling with integrated adhesive tape for small GPU components. It is a solid choice when you need low-profile heat dissipation across tight board layouts.
Awxlumv 100x69mm Aluminum Heatsink
Best for: custom GPU builds with ample vertical clearance
- Compatible Device
- GPU (what this guide is about)
- Material
- anodized aluminum
- Dimensions
- 100 x 69 x 36mm
- Weight
- 9.14 ounces
The Awxlumv 100x69mm Aluminum Heatsink is an extruded cooling block designed for passive heat dissipation across graphics processors and high-power electronic components. It measures 100 by 69 millimeters with a 36-millimeter total profile, featuring 27 integrated fins standing 31.4 millimeters tall on a thick 4.6-millimeter base plate. This design suits you if you need a broad, tall cooling surface for custom GPU cooling or component modification projects.
Pros
- Thick 4.6mm base board for heat distribution
- 27 cooling fins measuring 31.4mm in height
- Constructed from silver anodized aluminum
- Broad 100mm by 69mm cooling footprint
Cons
- Includes no thermal adhesive, thermal pads, or mounting hardware
- Stands 36mm tall, requiring substantial vertical clearance
Good fit if
- You need a large 100x69mm cooling area for wide electronic components.
- You have at least 36mm of vertical clearance inside your enclosure.
Skip if
- You need low-profile heatsinks to fit tight multi-slot GPU spacing.
- You want pre-applied thermal tape or mounting brackets included in the package.
Verdict: Awxlumv 100x69mm Aluminum Heatsink provides substantial passive surface area through its 27 tall fins and 4.6mm base plate. It serves as an effective cooling solution if your enclosure can accommodate its 36mm height.
Easycargo 100-Piece 15mm Copper Shim Kit
Best for: M.2 SSD thermal gap adjustments
- Compatible Device
- GPU, Laptop, RAM, PS5, M.2 SSD, VRM (what this guide is about)
- Material
- Copper C1100
- Length
- 0.6 inches
- Width
- 0.6 inches
This assortment includes 100 pure C1100 copper shims sized at 15mm by 15mm. It provides 12 distinct thicknesses ranging from 0.1mm up to 2mm, offering 401 W/mK thermal conductivity for gap filling. You can use these low-profile plates across laptop GPUs, VRAM, VRMs, or M.2 NVMe SSDs. It suits you if your thermal interface requires precise height matching between components and heatsinks.
Pros
- Pure C1100 copper with 401 W/mK thermal conductivity
- 100-piece kit with 12 distinct thicknesses from 0.1mm to 2mm
- Fits M.2 NVMe SSDs, laptop GPUs, VRAM, and RAM chips
- Available in options with or without adhesive glue
Cons
- Fixed 15mm by 15mm surface footprint
- Includes only three pieces for the 2mm thickness
Good fit if
- You need multiple shim thicknesses between 0.1mm and 2mm to bridge component gaps.
- You want high 401 W/mK thermal conductivity for GPU, VRAM, or M.2 SSD cooling.
Skip if
- You need heatsinks larger than 15mm by 15mm.
- You require more than three 2mm shims for your setup.
Verdict: Easycargo 15mm Copper Pad Shim 100-Piece Kit delivers pure C1100 copper plates in 12 thicknesses for targeted heat transfer. It provides the exact sizing versatility you need when bridging gaps on GPUs and M.2 SSDs.
Awxlumv 50x50x20mm Aluminum Heatsink 4-Pack
Best for: passive cooling on components with vertical clearance
- Compatible Device
- GPU (what this guide is about)
- Material
- 6063-T5 aluminum anodized
- Cooling Method
- Passive
- Dimensions
- 50mm x 50mm x 20mm
This kit contains four passive aluminum heatsinks designed for GPU and component cooling. Each block measures 50 by 50 by 20 millimeters and features 14 cooling fins extruded from 6063-T5 anodized aluminum. At 61 grams each, these blocks provide substantial surface area for heat dissipation. They suit you if you need individual passive cooling units for larger GPU components or secondary chips that have adequate vertical clearance in your chassis.
Pros
- Four 50 x 50 x 20 mm anodized aluminum heatsinks
- 14 cooling fins per unit to assist dissipation
- Constructed from 6063-T5 aluminum alloy
- Weighs 61 grams per heatsink for solid thermal mass
Cons
- No thermal adhesive or mounting tape included in the package
- 20 mm height requires dedicated vertical clearance
Good fit if
- You need individual 50 mm heatsinks for secondary GPU chips or VRMs.
- You have at least 20 mm of vertical clearance around your target components.
- You supply your own thermal tape or thermal adhesive compound.
Skip if
- You need flat copper shims to fit beneath an existing GPU cooler.
- You prefer heatsinks with pre-applied adhesive backing.
Verdict: Awxlumv 50mm Aluminum Heatsinks (4-Pack) provides four dedicated cooling blocks with tall fins for substantial passive heat dissipation. You will need your own thermal tape and sufficient physical clearance to install them.
Awxlumv 150mm Large Aluminum Heatsink
Best for: large-area passive GPU thermal management
- Compatible Device
- GPU (what this guide is about)
- Material
- Aluminium
- Cooling Method
- passive cooling
- Dimensions
- 150 x 93 x 15mm
- Color
- Black
- Weight
- 10.9 ounces
This Awxlumv heatsink is a large passive aluminum cooling block designed for components like your GPU, MOSFETs, and voltage regulators. It measures 150 by 93 by 15 millimeters and weighs 310 grams. With 294 cooling fins and a 4.3-millimeter-thick base plate, it spreads heat across a broad surface area. This suits you if you need passive heat dissipation over a wide GPU surface and have adequate space.
Pros
- Features 294 integrated cooling fins to maximize surface area
- Substantial 4.3mm base board thickness
- Large 150mm by 93mm footprint for wide thermal coverage
- Solid 310g black anodized aluminum construction
Cons
- Does not include thermal adhesive tape or mounting hardware
- Large 150mm by 93mm footprint requires significant flat clearance
Good fit if
- You need a large single-piece passive heatsink for broad component coverage.
- You have at least 15mm of vertical clearance and 150mm by 93mm of flat board area.
Skip if
- You require pre-applied thermal tape or included installation accessories.
- You need individual small heatsinks for separate, isolated VRAM chips.
Verdict: Awxlumv 150mm Large Aluminum Heatsink provides a massive 294-fin passive surface for cooling broad electronic components. It is an effective choice if your installation space accommodates its 150mm by 93mm profile.
Awxlumv 25mm Small Aluminum Heatsink 6-Pack
Best for: spot-cooling individual GPU chips and ICs
- Compatible Device
- GPU (what this guide is about)
- Material
- anodized aluminum
- Cooling Method
- passive cooling
- Dimensions
- 25 x 25 x 10mm
- Mounting Type
- Pre-applied thermal conductive tape
- Color
- Black
This Awxlumv pack gives you six black anodized aluminum heatsinks designed for GPU chipsets and small electronics. Each module measures 25 x 25 x 10 mm and weighs 5.7 grams. An 8 x 8 fin design provides passive dissipation, while pre-applied thermal conductive adhesive tape eliminates the need for separate glue. You will find these useful for cooling secondary components, power ICs, or handheld gaming boards without adding substantial weight.
Pros
- Pre-applied thermal conductive adhesive tape simplifies mounting
- 8 x 8 fin layout provides passive heat dissipation surface
- Lightweight construction at 5.7 grams per heatsink
- Six-piece pack covers multiple board components
Cons
- 10 mm height requires vertical clearance inside your setup
- Fixed 25 x 25 mm footprint fits only matching component sizes
Good fit if
- You need individual 25 x 25 mm aluminum heatsinks for GPU chips or power ICs.
- You prefer peel-and-stick thermal adhesive backing over separate thermal paste.
- You have at least 10 mm of vertical clearance above the target surface.
Skip if
- You require pure copper material rather than anodized aluminum.
- You need ultra-thin shims under 10 mm in total height.
Verdict: Awxlumv 25x25x10mm Aluminum Heatsink 6-Pack provides convenient stick-on passive cooling with its 8 x 8 fin array and pre-applied thermal tape. It is an effective option when you need lightweight, moderate-height heat dissipation for individual circuit components.
Easycargo 124-Piece Multi-Size Aluminum and Copper Kit
Best for: multi-chip spot cooling and Raspberry Pi projects
- Compatible Device
- GPU, Laptop, RAM, PS5, VRM, Raspberry Pi (what this guide is about)
- Material
- Aluminum and Copper
- Mounting Type
- Pre-applied 3M 8810 adhesive tape
- Features
- Thermal Tape
- Length
- 0.56 inches
- Width
- 0.56 inches
View on Amazon: Easycargo 124-Piece Multi-Size Aluminum and Copper Kit
This kit provides 124 heatsinks across nine different sizes made of aluminum and copper. You receive 104 finned aluminum sinks in black, green, and silver, along with 20 flat copper pad shims measuring 15mm by 15mm by 0.5mm. Every piece includes pre-applied 3M 8810 thermal conductive adhesive tape. It suits you if you need small modular sinks for GPU VRAM, VRMs, or compact boards like the Raspberry Pi.
Pros
- Includes 124 pieces across 9 distinct sizes
- Pre-applied 3M 8810 thermal conductive adhesive tape
- Combines both finned aluminum heatsinks and copper pad shims
- Compact dimensions down to 9mm x 9mm x 5mm
Cons
- Contains only 20 copper shims out of 124 total pieces
- Maximum heatsink footprint limited to 15mm x 15mm
Good fit if
- You need various miniature heatsink sizes for GPU memory and VRM chips.
- You want peel-and-stick installation using pre-applied thermal adhesive tape.
- You cool auxiliary components on a Raspberry Pi or single-board computer.
Skip if
- You need a single large heatsink plate for a primary GPU processor core.
- You require an all-copper kit rather than mostly aluminum parts.
Verdict: Easycargo 124-Piece Aluminum and Copper Heatsink Kit offers broad sizing versatility and pre-applied adhesive for small secondary components. It serves spot-cooling tasks on GPU VRMs and Raspberry Pi boards rather than large processors.
Easycargo 20mm Copper Pad Shim Kit
Best for: GPU gap filling across varied thickness clearances
- Compatible Device
- GPU, RAM, PS5, VRM (what this guide is about)
- Material
- Pure Copper C1100
- Dimensions
- 20mm x 20mm
- Weight
- 4.66 ounces
This kit provides 40 pure C1100 copper shims sized at 20mm by 20mm to act as heatsink gap fillers. You get six thickness options ranging from 0.3mm to 1.5mm, paired with a high thermal conductivity rating of 401W/mK. It suits you if you need to bridge precise clearance gaps on your GPU, VRAM, or VRM components without relying on thick thermal pads.
Pros
- Pure C1100 copper construction with 401W/mK thermal conductivity
- Includes 40 pieces across six thicknesses from 0.3mm to 1.5mm
- Standard 20mm x 20mm low-profile square dimensions
Cons
- No pre-applied thermal adhesive tape included
- Fixed 20mm footprint does not fit smaller chip surfaces
- Includes fewer pieces for 1.2mm and 1.5mm sizes than thinner options
Good fit if
- You need multiple thickness options to match exact GPU or VRAM gap tolerances.
- You require pure copper with a 401W/mK thermal conductivity rating.
- You are cooling 20mm x 20mm surface components.
Skip if
- You need pre-applied adhesive for direct stick-on mounting.
- You require smaller 10mm or 15mm shim dimensions.
Verdict: Easycargo 20mm Copper Pad Shim Kit provides high 401W/mK thermal conductivity across six distinct gauges to precisely fill GPU heatsink gaps.
Specifications side by side
| Spec | NEW Games Order PS3 Copper Heatsink Shims | JIUWU 15x15x0.8mm Copper Heatsink Shims | JIUWU 20x20mm Copper Pad Shim | Honbay 15x15mm Copper Heatsink Pads | Alphacool 10 x 10mm Copper RAM Heatsinks | Alphacool 14 x 14mm Copper Heatsinks 10-Pack | Easycargo 15x15x0.5mm Copper Shims 20-Pack | Easycargo 9mm Copper VRM Heatsinks | Awxlumv 100x69mm Aluminum Heatsink | Easycargo 100-Piece 15mm Copper Shim Kit | Awxlumv 50x50x20mm Aluminum Heatsink 4-Pack | Awxlumv 150mm Large Aluminum Heatsink | Awxlumv 25mm Small Aluminum Heatsink 6-Pack | Easycargo 124-Piece Multi-Size Aluminum and Copper Kit | Easycargo 20mm Copper Pad Shim Kit |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Material | 100% copper | High Purity Copper | copper | Copper | Copper | Copper | Copper | Copper | anodized aluminum | Copper C1100 | 6063-T5 aluminum anodized | Aluminium | anodized aluminum | Aluminum and Copper | Pure Copper C1100 |
| Cooling Method | not specified | not specified | not specified | not specified | Passive | Passive | passive | passive | not specified | not specified | Passive | passive cooling | passive cooling | not specified | not specified |
| Compatible Device | Sony Playstation 3 PS3 Fat Slim | Laptop GPU and CPU | IC chipsets, GPUs, and CPUs | Laptop GPU CPU | GPU RAM, Mosfests, RAM modules | GPU RAM, Mosfests, RAM modules | Laptop GPU CPU IC Chips VGA RAM | VRM GPU Stepper Driver MOSFET Regulators | computer, GPU, Power Transistor, IC | PC, Laptop GPU, CPU, M.2 NVMe SSD | GPU, CPU, LED Chipset, Router | not specified | ASUS ROG Ally | Raspberry Pi 4, M.2 SSD, PS5 | CPU, GPU, VGA, RAM, VRM, PS5 SSD |
| Dimensions | not specified | 15mm x 15mm x 0.8mm | 20 x 20 x 0.8mm | 15*15mm | 10 x 10mm | 14 x 14mm | 15x15x0.5mm | 9mm x 9mm x 4mm | 100 x 69 x 36mm | not specified | 50mm x 50mm x 20mm | 150 x 93 x 15mm | 25 x 25 x 10mm | not specified | 20mm x 20mm |
| Mounting Type | not specified | not specified | not specified | not specified | not specified | not specified | Pre applied adhesive tape backing | Pre applied adhesive tape backing | not specified | not specified | not specified | not specified | Pre-applied thermal conductive tape | Pre-applied 3M 8810 adhesive tape | not specified |
| Color | Bronze | not specified | not specified | not specified | Copper | DE-223 | Copper Tone | 10pcs 9x9x4mm Copper | Silver | Copper | not specified | Black | Black | not specified | not specified |
| Features | not specified | not specified | not specified | not specified | not specified | not specified | Thermal Tape | Thermal Tape | not specified | not specified | not specified | not specified | not specified | Thermal Tape | not specified |
| Weight | 1 pounds | 0.32 ounces | 1.6 ounces | 4 ounces | 0.07 kilograms | 3.84 ounces | not specified | not specified | 9.14 ounces | not specified | not specified | 10.9 ounces | 1.27 ounces | 5.93 ounces | 4.66 ounces |
| Length | not specified | 0.59 inches | 0.79 inches | not specified | not specified | not specified | 0.59 inches | not specified | not specified | 0.6 inches | not specified | not specified | not specified | 0.56 inches | not specified |
| Width | not specified | 0.59 inches | 0.79 inches | not specified | not specified | not specified | 0.59 inches | not specified | not specified | 0.6 inches | not specified | not specified | not specified | 0.56 inches | not specified |
| Size | Small | 15mm x 15mm x 0.8mm | 20 x 20 x 0.8mm | not specified | not specified | not specified | 15x15x0.5mm | not specified | 100x69x36mm | not specified | 4 Pcs | 1 Pcs | 25 x25 x10 | not specified | not specified |
| Model | 8541600992 | GYA032 | GYA042 | NA | 17426 | 17427 | NA | ES-H12B141407 | 100x69x36 mm | ES-C100-1515 | 20-40mm | 1Pcs | 25x25x10 mm | 124-HK | 2020XXC40 |
If you need cooling for storage, you can compare specifications for the best nvme SSDs with heatsink to verify motherboard clearance and physical dimensions.
How to Choose the Right GPU Heatsink
-
Check Material Thermal Properties
Check the material specification when choosing cooling hardware for your board. Copper offers high thermal conductivity, making it ideal for direct contact shims and concentrated hot spots. Aluminum provides lightweight heat dissipation across larger finned arrays. If your setup requires a large passive radiator with tall cooling fins, aluminum models like the Awxlumv 100x69mm Aluminum Heatsink provide ample surface area without adding excessive weight to your board. For direct metal interface contact, choose copper.
-
Verify Mounting Interface Features
Review the features specification to confirm how each heatsink adheres to your components. Certain models provide pre-applied thermal adhesive tape for straightforward mounting. For example, the Easycargo 15x15x0.5mm Copper Shims 20-Pack lists thermal tape in its specifications, eliminating the need to source separate mounting adhesives. Other units omit thermal tape and require you to apply separate thermal compound or adhesive pads. Check whether your assembly relies on mechanical mounting pressure, thermal paste, or integrated self-adhesive backing before finalizing your choice.
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Match Surface Area Dimensions
Measure the length and width of each target component before selecting heatsinks. If you place an oversized heatsink onto a small chip, exposed metal edges can short out neighboring traces or bump adjacent capacitors. Conversely, an undersized heatsink leaves bare silicon exposed. When cooling specific memory packages, look for matching surface dimensions. The Alphacool 14 x 14mm Copper Heatsinks 10-Pack directly covers individual 14mm by 14mm VRAM modules without overlapping surrounding components. Align heatsink length and width to your chip profile.
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Choose Kit Variety Wisely
Examine whether a single fixed-thickness unit or a multi-gauge assortment suits your repair. When you know exact spacing requirements, purchasing a uniform pack saves installation effort. If you encounter unknown gap tolerances across varied board layouts, a multi-gauge kit provides greater flexibility. The Easycargo 100-Piece 15mm Copper Shim Kit supplies twelve separate thicknesses, enabling you to test multiple heights until you achieve flush contact. Check your clearance measurements first to determine whether you need a uniform pack or a multi-gauge kit.
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Inspect Compatible Device Listings
Check the compatible device specifications to verify the intended installation role on your board. GPU assemblies contain multiple distinct heat sources, including primary graphics silicon, video memory, and voltage regulation modules. Primary GPU cores demand broad contact plates, while power stages require compact cooling units. The Easycargo 9mm Copper VRM Heatsinks targets tight voltage regulation zones where larger heatsinks cannot physically fit. Read the product listing attributes to ensure the cooler matches your specific target component, whether it is VRAM, VRM, or the GPU die.
Frequently asked questions
What is the difference between a GPU heatsink shim and a finned heatsink?
A GPU shim bridges a flat thermal gap, whereas a finned heatsink actively dissipates heat into surrounding air. Shims like the JIUWU 15x15x0.8mm copper pads transfer heat directly between a chip die and an existing cooler assembly. In contrast, finned blocks like the Awxlumv 150mm model utilize 294 fins to shed thermal energy into ambient case airflow.
Do GPU VRM and VRAM heatsinks come with pre-applied thermal adhesive?
Some GPU heatsinks include pre-applied thermal adhesive, while others require separate mounting tape or paste. For example, the Easycargo 9mm copper VRM units and Awxlumv 25mm aluminum blocks list thermal tape in their product specifications. Conversely, products like the Alphacool 10x10mm copper heatsinks do not include pre-applied adhesive, meaning you must supply your own thermal interface material for installation.
How do you choose the right shim thickness for a laptop GPU?
You choose shim thickness by measuring the physical clearance gap between the GPU die and the cooling plate. Selecting an improper gauge can warp the motherboard or leave a thermal gap. Multi-thickness assortments like the Easycargo 100-Piece 15mm kit provide 12 distinct thicknesses, allowing you to select the exact measurement needed to establish firm thermal contact without crushing fragile board components.
Can you use small individual heatsinks on GPU memory chips?
Yes, compact individual heatsinks are manufactured specifically for surface-mount components like GPU VRAM. Modules like the Alphacool 14x14mm copper heatsinks match standard memory package dimensions. Mounting these miniature copper blocks directly to individual memory chips or MOSFETs provides passive thermal dissipation in tight areas where large aftermarket heatsinks cannot make direct contact with auxiliary board components.
What thermal conductivity spec should you look for in copper GPU shims?
Look for high-purity copper ratings that reach approximately 401 W/mK in thermal conductivity. Products such as the Easycargo 20mm Copper Pad Shim Kit explicitly publish this 401 W/mK rating. This high specification ensures heat transfers rapidly from the hot processor die through the metal bridge, avoiding heat accumulation across narrow clearances that factory thermal pads might otherwise struggle to conduct.
Can aluminum heatsinks be installed inside a compact laptop chassis?
Finned aluminum heatsinks are generally too tall for slim laptop enclosures. Models such as the Awxlumv 50x50x20mm heatsink stand nearly 20mm high, while the larger 100x69mm version reaches 36mm. Laptops typically accommodate low-profile copper shims measuring 0.5mm to 1.2mm thick. These taller finned aluminum heatsinks are intended for desktop chassis or open electronic enclosures with substantial vertical clearance.
Which GPU components benefit from passive heatsinks?
Auxiliary parts such as VRAM modules, MOSFETs, and voltage regulator modules (VRMs) benefit most from secondary passive heatsinks. While the main GPU core requires high-capacity cooling, surrounding power-delivery components generate localized heat. Sets like the Easycargo 124-Piece kit supply multi-sized aluminum and copper heatsinks designed specifically to spot-cool these compact board components and keep operating temperatures stable.