Intel CPU efficiency

[Enderman]

So my old CPU the 3770k used to get 63-64C under load when overclocked to 4.43GHz with 1.13v

 

Now the 4790k I upgraded to reaches a max of 52C under load, stock clocks/voltage

 

I was pretty surprised to see a 10+ degree temperature improvement since I'm using the same thermal paste and cooler...

Is 0.13v really that much more heat or did intel just really improve efficiency and the IHS thermal compound?

[manikyath]

every new cpu is an upgrade to the last gen i guess, my 4790K does about the same on a clean system, and when my fan curves arent set stupidly low.

 

might also have a better cooler mount than last time, i'm sure even linus and luke have variations when redoing their paste.

[Enderman]

every new cpu is an upgrade to the last gen i guess, my 4790K does about the same on a clean system, and when my fan curves arent set stupidly low.

 

might also have a better cooler mount than last time, i'm sure even linus and luke have variations when redoing their paste.

with my old CPU I remounted the cooler (and another 240mm cooler) at least half a dozen times during upgrades, always got the same 63-64

[i_build_nanosuits]

4790K is designed for optimal heat transfer to the IHS and extra capacitors are present to help with even more even power delivery to the chip...it is indeed a much more efficient CPU architecture than ivy bridge was as well.