PTM7950 Thermal pad 40x80x0.25mm phase change thermal pad vs Thermal Grizzly KryoSheet 38x38x0.2mm
Updated August 2026 — The PTM7950 Thermal pad offers superior thermal conductivity and durability, making it the better choice for high-performance applications. However, the Thermal Grizzly KryoSheet is a more affordable and convenient option.
The PTM7950 Thermal pad offers superior thermal conductivity and durability, making it the better choice for high-performance applications. However, the Thermal Grizzly KryoSheet is a more affordable and convenient option.
Why PTM7950 Thermal pad 40x80x0.25mm phase change thermal pad is better
higher conductivity
PTM7950 has a thermal conductivity of 8.5 W/mK
larger size
PTM7950 measures 40x80mm compared to 38x38mm
longer durability
PTM7950 withstands 1000 hours at 150 °C
Why Thermal Grizzly KryoSheet 38x38x0.2mm is better
lower price
Thermal Grizzly KryoSheet costs £18.99
reusable application
KryoSheet replaces thermal paste with a clean application
electrically safe
KryoSheet is electrically non-conductive
Overall score
Specifications
| Spec | PTM7950 Thermal pad 40x80x0.25mm phase change thermal pad | Thermal Grizzly KryoSheet 38x38x0.2mm |
|---|---|---|
| Brand | Aukuoy | Thermal Grizzly |
| Current Price | £19.99 | £18.99 |
| Material | Phase Change Material | Reusable Sheet |
| Compatibility | Larger Components | Desktop Components |
| Ease of Use | Includes tools | Reusable application |
Dimension comparison
Introduction to Thermal Pads
When it comes to cooling components in PCs, effective thermal management is critical. This comparison focuses on two thermal pads: the PTM7950 Thermal pad and the Thermal Grizzly KryoSheet. The former is priced at £19.99, while the latter is slightly cheaper at £18.99. Both products aim to improve heat transfer, but they employ different technologies and features that may appeal to various users.
Thermal Conductivity
Thermal conductivity is a key factor in the performance of thermal pads. The PTM7950 boasts an impressive thermal conductivity rating of 8.5 W/mK, which indicates its ability to efficiently transfer heat away from components. In contrast, while the specific thermal conductivity of the Thermal Grizzly KryoSheet is not explicitly stated, it is designed for excellent heat transfer capabilities. However, the PTM7950's higher conductivity suggests that it may provide superior cooling performance, especially in high-performance applications.
Size and Compatibility
Size can significantly impact the compatibility of thermal pads with different components. The PTM7950 measures 40x80x0.25mm, making it suitable for larger contact surfaces, while the Thermal Grizzly KryoSheet has a smaller size of 38x38x0.2mm, which may limit its application to more compact areas. The KryoSheet’s size, however, is designed for broad compatibility with desktop components, making it a versatile choice. Users with larger components may find the PTM7950 more accommodating due to its larger surface area.
Material and Construction
The PTM7950 is made from a proprietary phase change material (PCM) that claims to last longer and perform better than conventional thermal pads. It can withstand a bake test of 1000 hours at 150 °C and endure 1000 thermal cycles without significant loss of performance. Conversely, the Thermal Grizzly KryoSheet replaces traditional thermal paste with a clean, reusable application. While both products offer unique materials, the PTM7950 appears to be geared toward long-term reliability, making it suitable for high-performance integrated circuits.
Ease of Use
User-friendliness is an essential factor when selecting thermal pads. The PTM7950 package comes with several helpful tools: a Phillips screwdriver, a cleaning cloth, a spatula, and a cleaning brush, enhancing the overall user experience. The Thermal Grizzly KryoSheet aims for convenience by providing a reusable application that simplifies installation and reduces mess. While both products have their advantages, the PTM7950's comprehensive package may appeal to those looking for a more complete solution.
Safety Features
Safety is paramount when dealing with electronic components, and both thermal pads offer distinct advantages. The PTM7950's design maintains low thermal impedance, which prevents overheating and allows for efficient heat transfer. Meanwhile, the Thermal Grizzly KryoSheet is electrically non-conductive, ensuring that it is safe to use with delicate electronic components. This characteristic makes the KryoSheet particularly appealing for users concerned about potential electrical shorts or damage.
Longevity and Durability
Durability is a critical consideration for thermal management solutions. The PTM7950 is engineered to endure extreme conditions, withstanding temperatures and cycles that can degrade lesser materials. Its ability to operate effectively for extended periods makes it a reliable choice for high-performance applications. On the other hand, while the Thermal Grizzly KryoSheet is reusable and offers convenience, its longevity in demanding environments may not match that of the PTM7950. Users prioritising durability may find the PTM7950 to be the superior option.
Which should you buy?
In conclusion, choosing between the PTM7950 Thermal pad and the Thermal Grizzly KryoSheet depends on your specific needs. If you prioritise high thermal conductivity, durability, and a comprehensive package for installation, the PTM7950 at £19.99 is likely the better choice. However, if you are looking for a more affordable option that offers convenience and broad compatibility with desktop components, the Thermal Grizzly KryoSheet at £18.99 may suit you well. Ultimately, both thermal pads have their strengths, so consider your priorities carefully before making a decision.
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