You don't need one actually. Intel has published the TDP values, the high end quad cores are 77w TDP while sandy bridge is 95w TDP. So unless intel is lying to OEMs (or the stock cooler is way worse than sandy bridge which wouldn't make any sense) ivy bridge will run cooler.
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Yes logic would suggest that you would only need to look at the TDP of each, however I had another look at Tweaktown's preview and found this
![[Image: 4619_43_ivy_bridge_preview_with_gigabyte..._3770k.png]](http://cdn5.tweaktown.com/content/4/6/4619_43_ivy_bridge_preview_with_gigabyte_z77x_ud5h_intel_z77_and_core_i7_3770k.png)
It seems that the 3770k is running 11 degrees hotter under load than the 2600k despite supposedly needing to dissipate 18 watts less of thermal energy.
I don't have much experience with that particular site, can anyone here confirm how reliable their test results tend to be?
i7 2600k @4.5ghz
1gb HD 6870
16gb ddr3 1600mhz
Win7 x64
1gb HD 6870
16gb ddr3 1600mhz
Win7 x64
