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Honeywell PTM7950 vs Thermal Grizzly KryoSheet: Comparison
What is the difference between Honeywell PTM7950 and Thermal Grizzly KryoSheet?
The first real difference is compound type: Honeywell PTM7950 Phase-Change Pad against Thermal Grizzly KryoSheet Graphene Pad. There is a split on electrical conductivity as well, Insulating on the Honeywell PTM7950 versus Conductive on the Thermal Grizzly KryoSheet. There is a split on recommended use as well, Laptop-Thin-GPU on the Honeywell PTM7950 versus High-end CPU/GPU on the Thermal Grizzly KryoSheet. They differ on reapplication interval too, Rated for repeated thermal cycles without reapplication on the Honeywell PTM7950 versus Reusable across multiple mounts on the Thermal Grizzly KryoSheet.
Who each one is for
Take the Honeywell PTM7950 for laptops, thin GPUs, and small-form-factor builds where repeated repasting is impractical. It also earns its place with builders who want to avoid the pump-out issues that eventually affect paste-based compounds. Avoid it for builders wanting a simple syringe-and-applicator experience; PTM7950 requires cutting a pad to size. Buy the Thermal Grizzly KryoSheet for High-TDP GPU dies and high-end CPUs where every degree counts and builders already comfortable handling conductive thermal interfaces. It is the wrong buy for mainstream builds where a standard paste already keeps temps in check. Our rating of the Honeywell PTM7950 (8.4/10): widely regarded as the strongest choice for GPUs and thin laptops thanks to reapplication-free longevity, though counterfeits are common so buying from a verified source matters. Our rating of the Thermal Grizzly KryoSheet (7.7/10): A reusable graphene pad with strong published conductivity, well suited to repeated remounts without reapplying paste.
What Honeywell PTM7950 and Thermal Grizzly KryoSheet have in common
Everything else lines up. Pump-out resistance and paste segment read the same on both, so those are not worth weighing.
Read the full breakdown: How Often to Replace Thermal Paste (It Depends on What You Used)
Specs and benchmarks
Brand
- Honeywell PTM7950
- Honeywell
- Thermal Grizzly KryoSheet
- Thermal Grizzly
Compound Type
- Honeywell PTM7950
- Phase-Change Pad
- Thermal Grizzly KryoSheet
- Graphene Pad
Model
- Honeywell PTM7950
- Honeywell PTM7950 , PTM7950
- Thermal Grizzly KryoSheet
- Thermal Grizzly KryoSheet , KryoSheet
Electrical Conductivity
- Honeywell PTM7950
- Insulating
- Thermal Grizzly KryoSheet
- Conductive
Package Size
- Honeywell PTM7950
- Sheet/pad cut to size (sold by area, not weight)
- Thermal Grizzly KryoSheet
- 24x12mm to 50x50mm sheets, 0.2mm thick
Recommended Use
- Honeywell PTM7950
- Laptop-Thin-GPU (and builds needing reapplication-free long-term use)
- Thermal Grizzly KryoSheet
- High-end CPU/GPU (high-wattage GPUs especially)
Reapplication Interval
- Honeywell PTM7950
- Rated for repeated thermal cycles without reapplication (~2+ years)
- Thermal Grizzly KryoSheet
- Reusable across multiple mounts
Safety Notes
- Honeywell PTM7950
- Solid at room temperature; softens at operating temperature; different application method than paste
- Thermal Grizzly KryoSheet
- Electrically conductive; keep clear of exposed board components
Pump-Out Resistance
- Honeywell PTM7950
- High
- Thermal Grizzly KryoSheet
- High
Paste Segment
- Honeywell PTM7950
- Pad
- Thermal Grizzly KryoSheet
- Pad
Which one should you pick?
Choose Honeywell PTM7950 if you already have it on hand or find it at a lower price.
Choose Thermal Grizzly KryoSheet if you already have it on hand or find it at a lower price.
Price comparison
| Retailer | Honeywell PTM7950 | Thermal Grizzly KryoSheet |
|---|---|---|
| Amazon | View on Amazon |
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
Verdict
Honeywell PTM7950
8.4 / 10 Expert Rating
Widely regarded as the strongest choice for GPUs and thin laptops thanks to reapplication-free longevity, though counterfeits are common so buying from a verified source matters.
Thermal Grizzly KryoSheet
7.7 / 10 Expert Rating
A reusable graphene pad with strong published conductivity, well suited to repeated remounts without reapplying paste.