Easycargo or Thermal Grizzly? Heatsinks Compared in 2026
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You are comparing the easycargo vs thermal grizzly heatsink options for managing heat in small electronics. Both products serve as thermal interface materials to bridge gaps between components and cooling surfaces. The main difference lies in their physical construction and intended use. Easycargo offers rigid copper shims with adhesive backing for structural spacing. Thermal Grizzly provides a soft carbon-based pad designed for high conductivity on specific graphics cards. You need to choose based on your device type and space constraints.
Key differences
| Aspect | Easycargo 15x15x0.5mm Copper Shims 20-Pack | Thermal Grizzly Carbonaut 25x25mm Thermal Pad |
|---|---|---|
| Material | Copper | Carbon composite |
| Dimensions | 15x15x0.5mm | 25x25x0.2mm |
| Thermal Conductivity | not listed | 62.5 W/m, K |
| Compatible Device | Laptop GPU, CPU, VRAM, IC, chipset, VGA, RAM | Nvidia RTX 2080 |
| Mounting | Pre-applied 3M 8810 adhesive tape | Self-adhesive thermal pad |
Which one should you choose?
Choose Easycargo 15x15x0.5mm Copper Shims 20-Pack if
- You need rigid copper shims to fill larger gaps in laptops or VRAM modules.
- You are working with multiple component types like CPUs, chipsets, or VGA RAM.
- You require pre-applied strong adhesive for secure mounting on irregular surfaces.
Choose Thermal Grizzly Carbonaut 25x25mm Thermal Pad if
- You are upgrading an Nvidia RTX 2080 graphics card.
- You need high thermal conductivity for efficient heat transfer.
- You require a thin profile to fit tight spaces on modern GPUs.
Verdict: Choose the Easycargo copper shims if you need versatile, rigid spacers for various laptop components like VRAM or chipsets. Pick the Thermal Grizzly Carbonaut pad if you are specifically upgrading an Nvidia RTX 2080 and need high-performance thermal transfer. The right choice depends entirely on whether you need structural spacing or optimized heat conduction.
Easycargo vs Thermal Grizzly Specs
Thermal Conductivity
Thermal Grizzly Carbonaut lists a specific thermal conductivity rating of 62.5 W/m·K. This value indicates how efficiently the material transfers heat from the component to the heatsink. Easycargo does not provide a thermal conductivity number in its published specifications. Without this metric, you cannot directly compare the heat transfer efficiency of the copper shim against the carbon-based pad. The Carbonaut provides a quantifiable measure for performance evaluation, while the Easycargo relies on material type alone. For users who need to verify thermal performance through numbers, the Thermal Grizzly option offers clear data.
Dimensions
The Easycargo shims measure 15x15x0.5mm, while the Thermal Grizzly pad is 25x25x0.2mm. The Easycargo product is thicker at 0.5mm compared to the 0.2mm thickness of the Thermal Grizzly pad. This difference in thickness matters for filling gaps between components and cooling surfaces. The Easycargo shim is smaller in surface area, covering 15mm by 15mm. The Thermal Grizzly pad covers a larger 25mm by 25mm area. If you need to cover a larger surface, the Thermal Grizzly pad is larger. If you need more thickness to bridge a wider gap, the Easycargo shim is thicker.
Material
Easycargo uses copper as its primary material. Copper is a metal known for high thermal conductivity and rigidity. Thermal Grizzly uses a carbon-based compound called Carbonaut. This material is designed to be non-conductive electrically while maintaining high thermal conductivity. The Easycargo copper shim is rigid and may require careful handling to avoid bending. The Thermal Grizzly pad is softer and conforms to surfaces. If you prefer the traditional properties of metal, Easycargo offers copper. If you want a non-conductive option that reduces short-circuit risks, Thermal Grizzly provides a carbon solution.
Mounting
Easycargo shims come with pre-applied 3M 8810 thermal conductive adhesive tape. This backing allows you to stick the shim directly to components without additional glue. Thermal Grizzly does not list a pre-applied adhesive backing in its specifications. You may need to use separate thermal pads or adhesives for the Thermal Grizzly product. The Easycargo option simplifies installation by including the adhesive. The Thermal Grizzly product requires you to source mounting solutions separately. For easier installation, the Easycargo shim includes the necessary adhesive tape.
Temperature Range
Thermal Grizzly specifies a usable temperature range from -40°F to 330°F (-250°C to 150°C). This range indicates the operational limits for the material. Easycargo does not provide a temperature range in its data. Without this information, you cannot confirm how the Easycargo shim performs in extreme cold or high heat. The Thermal Grizzly pad offers verified stability across a wide thermal spectrum. If you operate in environments with significant temperature fluctuations, the Thermal Grizzly data provides more assurance.
Choose the Right Thermal Shim for You
Users needing rigid copper spacers for laptops
The Easycargo shims are made of copper and measure 15x15x0.5mm. They include pre-applied 3M 8810 adhesive tape for mounting. This rigid construction fits passive cooling for laptop GPUs and VRAM. You get a pack of 20 pieces. The thicker profile helps bridge gaps between components and heatsinks effectively.
High-performance GPU thermal pad replacements
Thermal Grizzly Carbonaut offers 62.5 W/m·K thermal conductivity. It measures 25x25x0.2mm and fits Nvidia RTX 2080 graphics cards. The material handles temperatures from -40°F to 330°F. This high conductivity ensures efficient heat transfer from the GPU to the cooler. It is a specialized pad for high-end components.
General purpose IC and chipset cooling
Easycargo shims work for CPU, IC chips, and VGA RAM. The copper material conducts heat well. The 0.5mm thickness provides a stable interface. The adhesive backing simplifies installation on various chips. You can use these for passive cooling applications where rigid support is necessary for thermal management.
The products compared
Easycargo 15x15x0.5mm Copper Shims 20-Pack
Best for: Laptop GPU and VRAM gap filling
- Material
- Copper
- Cooling Method
- passive
- Compatible Device
- Laptop GPU CPU IC Chips VGA RAM
- Dimensions
- 15x15x0.5mm
- Mounting Type
- Pre applied adhesive tape backing
- Features
- Thermal Tape
View on Amazon: Easycargo 15x15x0.5mm Copper Shims 20-Pack Affiliate link
You get 20 copper pad shims measuring 15x15mm with a 0.5mm thickness. These shims use pre-applied 3M 8810 thermal conductive adhesive tape for mounting. They are designed for passive cooling on laptop GPUs, CPUs, VRAM, and chipset ICs. The copper material helps conduct heat away from small components. This kit suits you if you need to bridge gaps between heat sources and larger cooling surfaces in tight spaces.
Pros
- Made of copper for efficient heat conduction
- Pre-applied 3M 8810 adhesive tape for easy installation
- Compact 15x15mm size fits small ICs
- Includes 20 pieces for multiple applications
Cons
- Passive cooling only, no fan included
- Small 15x15mm surface area limits heat dissipation
- Designed for laptops and small chips, not desktop CPUs
Good fit if
- You need to fill gaps between small chips and heatsinks
- You are working on laptop GPU or VRAM cooling
- You want pre-applied adhesive for quick mounting
Skip if
- You need active cooling with a fan
- You are cooling a standard desktop CPU
- You require large surface area heat spreaders
Verdict: Easycargo 15x15mm Copper Heatsink Shims fits you if you are modifying laptop components or small ICs that need a precise thermal bridge. It is not suitable for main processor cooling.
Thermal Grizzly Carbonaut 25x25mm Thermal Pad
Best for: filling small gaps on compatible GPUs
- Compatible Device
- Nvidia RTX 2080
- Dimensions
- 25 x 25 x 0.2 mm
- Length
- 0.98 inches
- Width
- 0.98 inches
View on Amazon: Thermal Grizzly Carbonaut 25x25mm Thermal Pad Affiliate link
This is a 25x25x0.2 mm copper shim from Thermal Grizzly. It offers a thermal conductivity of 62.5 W/m·K. The shim fits Nvidia RTX 2080 GPUs. It handles temperatures from -40°F to 330°F. You should use it to fill gaps between heat sources and sinks. It helps improve heat transfer in tight spaces.
Pros
- High thermal conductivity of 62.5 W/m·K
- Thin 0.2 mm profile for tight gaps
- Wide usable temperature range of -40°F to 330°F
- Compatible with Nvidia RTX 2080 GPUs
Cons
- Risk of short-circuiting if attached to terminals
- Small 25x25 mm size limits coverage area
- Requires careful handling due to conductivity risks
Good fit if
- You need to fill small gaps on a GPU
- You want high thermal conductivity in a thin shim
- You are upgrading an Nvidia RTX 2080
Skip if
- You need a shim larger than 25x25 mm
- You cannot handle electrical conductivity risks
- You are not using a compatible GPU
Verdict: Thermal Grizzly Carbonaut 25x25mm Shim provides high conductivity in a thin profile. It fits users who need precise gap filling for Nvidia RTX 2080 GPUs.
Specifications side by side
| Spec | Easycargo 15x15x0.5mm Copper Shims 20-Pack | Thermal Grizzly Carbonaut 25x25mm Thermal Pad |
|---|---|---|
| Material | Copper | not stated |
| Cooling Method | passive | not stated |
| Compatible Device | Laptop GPU CPU IC Chips VGA RAM | Nvidia RTX 2080 |
| Dimensions | 15x15x0.5mm | 25 x 25 x 0.2 mm |
| Mounting Type | Pre applied adhesive tape backing | not stated |
| Features | Thermal Tape | not stated |
| Length | 0.59 inches | 0.98 inches |
| Width | 0.59 inches | 0.98 inches |
| Size | 15x15x0.5mm | 25×25×0.2(H)mm |
| Color | Copper Tone | not stated |
| Model | NA | TG-CA-25-25-02-R |
Frequently asked questions
Are these shims compatible with standard desktop CPU sockets?
No. The Easycargo shims are explicitly designed for laptop GPUs and VRAM gap filling. They are not suitable for main processor cooling. The Thermal Grizzly Carbonaut is intended for filling small gaps on compatible GPUs. Neither product is built for standard desktop CPU socket applications.
What is the thickness difference between the two options?
The Easycargo shims are 0.5mm thick. The Thermal Grizzly Carbonaut pad is 0.2mm thick. This difference matters for precise gap filling. You should choose the thinner pad if you have very small spaces on your graphics card components.
Does the Easycargo product come with adhesive tape?
Yes. The Easycargo shims include pre-applied thermal tape. This feature helps with mounting the copper pieces directly onto components. The Thermal Grizzly product data does not mention included adhesive, so you may need to source tape separately for that option.
Which brand offers a rigid copper material?
Easycargo offers rigid copper shims. These provide a solid thermal bridge for modifying laptop components. The Thermal Grizzly option is described as a thermal pad, which is typically more flexible. Choose Easycargo if you need a hard, structural spacer.
Can I use the Thermal Grizzly pad on a laptop?
It depends on the gap size. The Carbonaut pad fits users needing precise gap filling for specific Nvidia RTX 2080 GPUs. It is not a general-purpose laptop solution. Check your component dimensions carefully before using it for any laptop thermal modification.
What are the dimensions of the Easycargo shims?
Each Easycargo shim measures 15x15x0.5mm. This equals 0.59 inches by 0.59 inches. They come in a 20-pack. This size is ideal for small ICs and VRAM chips on laptops. They are too small for large heatsink bases.
Is Thermal Grizzly better for high heat transfer?
Thermal Grizzly Carbonaut lists a thermal conductivity of 62.5 W/m·K. This indicates efficient heat transfer from the component to the heatsink. Easycargo does not provide a thermal conductivity number in its published data. For verified conductivity metrics, Thermal Grizzly is the clear choice.