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Which CPU will run cooler? C2D or Core i5

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February 10, 2010 6:39:25 PM

Which CPU will run cooler?

Core 2 Duo E6600 2.4 Ghz - 65nm - 65watts

or

Core i5 650 3.2 Ghz - 32 nm - 73 watts

Assuming all else equal such as case, cpu fan, ambient temp.

Does higher watts "always" mean higher temperature?
a b à CPUs
February 10, 2010 8:19:05 PM

No. At full load expect to i5 to draw a little more power and create a little more heat. At idle expect the i5 to use less power due to being 32nm and more advanced power saving features.

a b à CPUs
February 10, 2010 8:40:43 PM

The i5 should use less power at almost all times. The reason is that the i5 includes the integrated graphics in that TDP rating, wheras the Core 2 does not. The i5 also does not need a northbridge on the motherboard. Because of this, the system power consumption of the i5 system should be lower at basically all times.
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February 10, 2010 9:02:17 PM

higher power consumption does always mean higher temperatures, the energy has to go somewhere, and unless you processor glows or buzzes its gotta turn into heat.

The key is that TDP represents maximum power consumption, and when comparing 2 generations of chips does not reflect average power (due to power saving as someguy mentioned)

Anyways I hope your not basing a purchasing decision on 8 Watts.
February 11, 2010 1:09:44 AM

^ I would gladly welcome an additional ~8w of power consumption of the i5 chip considering its performance gain over e6600 anytime. :) 
a b à CPUs
February 11, 2010 3:16:01 AM

FYI, my quad core Core i5-750 runs cooler than my dual core Pentium E6300 when they are both at stock. In addition, the dual core i5 is 32nm and so it should run even cooler.
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