K5-PRO Viscous Thermal Paste for pad replacement (60g pack) vs Thermal Grizzly Putty Pro - 30g non-conductive thermal putty

Overall winner: Thermal Grizzly Putty Pro - 30g non-conductive thermal putty

Key Differences

Thermal Grizzly Putty Pro (A) is sold in a smaller 30g pack, has a higher user rating (4.60 from 316 reviews), and is explicitly non-conductive and aimed at replacing thermal pads. CS Labs K5-PRO (B) comes in a larger 60g pack, advertises higher thermal conductivity (5.3 W/m·K) and is positioned for VRM/VRAM pad replacement but has a lower rating (4.20 from 116 reviews) and mixed temperature-control feedback

K5-PRO Viscous Thermal Paste for pad replacement (60g pack)

K5-PRO Viscous Thermal Paste for pad replacement (60g pack)

CS Labs • ★ 3.4/5 • Budget

K5-PRO is a high-quality viscous heat-transfer paste designed to replace soft thermal pads on various components. It offers improved thermal conductivity and easy application, though some users note messiness; one customer mentions long-lasting adhesion

Pros

  • high thermal conductivity 5.3 W/m.K
  • easy direct application on components
  • suitable for VRMs and VRAMs replacement
  • long-lasting adhesion (as noted by user)

Cons

  • messiness during use
  • mixed opinions on temperature control performance
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Thermal Grizzly Putty Pro - 30g non-conductive thermal putty

Thermal Grizzly Putty Pro - 30g non-conductive thermal putty

Thermal Grizzly • ★ 3.4/5 • Mid-Range

Electrically non-conductive thermal putty for GPU and PCB applications. Easy to apply with included spatulas or by hand, and replaces traditional thermal pads. Customers note solid performance but some find cleanup messy

Pros

  • electrically non-conductive
  • easy to apply with spatulas or by hand
  • replaces traditional thermal pads
  • high thermal conductivity

Cons

  • messy to clean up
  • adhesive quality described as very sticky by some
  • some find it difficult to work with
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Head-to-Head

CriteriaWinner
Price CS Labs
Durability Thermal Grizzly
Versatility Thermal Grizzly
User Reviews Thermal Grizzly