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Alphacool Apex Thermal Pad Soft 18W/mK vs Thermal Grizzly Kryonaut: Comparison
Alphacool Apex Thermal Pad Soft 18W/mK vs Thermal Grizzly Kryonaut: the compound type difference
The first real difference is compound type: Alphacool Apex Thermal Pad Soft 18W/mK Silicone-Based Pad against Thermal Grizzly Kryonaut Silicone-Based. There is a split on paste segment as well, Pad on the Alphacool Apex Thermal Pad Soft 18W/mK versus Standard Paste on the Thermal Grizzly Kryonaut.
Which should you buy, Alphacool Apex Thermal Pad Soft 18W/mK or Thermal Grizzly Kryonaut?
Take the Alphacool Apex Thermal Pad Soft 18W/mK for high-end CPU/GPU, VRM/MOSFET, and memory-module cooling wanting the highest independently-measured W/mK figure among this catalog's pads. It also earns its place with builds needing a documented electrical safety spec sheet (volume resistance, dielectric breakdown) rather than a generic non-conductive claim. It is not the one for buyers who specifically want Eisschicht's softer, more paste-like conforming fit for delicate uneven surfaces. Take the Thermal Grizzly Kryonaut for extreme overclockers and high-TDP flagship CPU builds. Current guides specifically single this paste out for chips like an Intel Core i9-14900K under sustained heavy load. It is equally the pick for enthusiasts who repaste periodically and want the strongest safe option available each time. The small tube size suits this occasional-use pattern. Avoid it for casual or mainstream builds. Arctic MX-6, covered elsewhere on this site, delivers performance within a fraction of a degree at a considerably lower price for typical use. Our rating of the Alphacool Apex Thermal Pad Soft 18W/mK (6.8/10): A soft, high-conductivity pad aimed at high-end builds, though it lacks the independent review base of the paste side of Alphacool's lineup. Our rating of the Thermal Grizzly Kryonaut (7.3/10): A long-time enthusiast favorite that performs excellently fresh out of the tube, though multiple reviewers have flagged pump-out on long-term mounts, so periodic reapplication is worth planning for.
What Alphacool Apex Thermal Pad Soft 18W/mK and Thermal Grizzly Kryonaut have in common
Where they agree, they agree completely, electrical conductivity included, so the decision does not turn on any of those.
Specs and benchmarks
Brand
- Alphacool Apex Thermal Pad Soft 18W/mK
- Alphacool
- Thermal Grizzly Kryonaut
- Thermal Grizzly
Compound Type
- Alphacool Apex Thermal Pad Soft 18W/mK
- Silicone-Based Pad
- Thermal Grizzly Kryonaut
- Silicone-Based
Model
- Alphacool Apex Thermal Pad Soft 18W/mK
- Alphacool Apex Thermal Pad Soft 18W/mK
- Thermal Grizzly Kryonaut
- Thermal Grizzly Kryonaut , Kryonaut
Electrical Conductivity
- Alphacool Apex Thermal Pad Soft 18W/mK
- Insulating
- Thermal Grizzly Kryonaut
- Insulating
Package Size
- Alphacool Apex Thermal Pad Soft 18W/mK
- 120 x 20 x 1.5mm sheet
- Thermal Grizzly Kryonaut
- 1g / 5.55g / 11.1g tubes
Recommended Use
- Alphacool Apex Thermal Pad Soft 18W/mK
- High-end CPU/GPU
- Thermal Grizzly Kryonaut
- High-end CPU/GPU (including overclocking)
Paste Segment
- Alphacool Apex Thermal Pad Soft 18W/mK
- Pad
- Thermal Grizzly Kryonaut
- Standard Paste
Which one should you pick?
Choose Alphacool Apex Thermal Pad Soft 18W/mK if you already have it on hand or find it at a lower price.
Choose Thermal Grizzly Kryonaut if you already have it on hand or find it at a lower price.
Price comparison
| Retailer | Alphacool Apex Thermal Pad Soft 18W/mK | Thermal Grizzly Kryonaut |
|---|---|---|
| Alphacool Shop (EU) | View on Alphacool Shop (EU) | |
| 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
Alphacool Apex Thermal Pad Soft 18W/mK
6.8 / 10 Expert Rating
A soft, high-conductivity pad aimed at high-end builds, though it lacks the independent review base of the paste side of Alphacool's lineup.
Thermal Grizzly Kryonaut
7.3 / 10 Expert Rating
A long-time enthusiast favorite that performs excellently fresh out of the tube, though multiple reviewers have flagged pump-out on long-term mounts, so periodic reapplication is worth planning for.
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