Hot take: Should we still be using thermal paste spreaders or just let the cooler do its thing?

Had a buddy last week who swears by spreading paste manually with a credit card, but I've always just done the pea method and let the pressure do the work. He claims I'm leaving air gaps but my temps are fine, so who's actually right here?

3 comments

3 Comments

craig.john24d ago

I read a test from a tech site a while back where they compared spreading vs the pea method. They found the difference was like 1-2 degrees at most on a high-end CPU. Your buddy is just being obsessive, if your temps are fine you're good.

janarivera24d agoMost Upvoted

But is a 1-2 degree difference really what we should be looking at, or is that just the average across the whole chip? I've seen tests that show the pea method can leave hotspots near the edges of the IHS, especially on bigger CPUs like the Threadripper or even a 13900K. That 1-2 degree average might hide a 5-7 degree spike on a single core under load, which is where you actually throttle. Plus, if you're using a thicker paste like Kryonaut, that extra spread can push it into the tiny gaps you can't see, making it way more efficient.

adam_patel24d ago

Yeah, the hotspot thing is real. I used to stress about spreading it perfect on my 12700K, then just went with the pea method on my next build and never saw any core temp spikes over 80C so I stopped caring. Your buddy's probably right that it matters more on big chips, but for most of us normal CPUs it's fine.