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define "much warmer"? 5º? 10º? 100º?

If lets say it did run 5º warmer. Would that matter?

wouldnt you want everything to run "much warmer" where you live?
 
Mine runs 'hotter' in Win7 than OSX.
I use a manual fan control so am I worried, no.
This 3.4GHz i7 definitely runs hotter than my old 2.93GHz machine but then you would expect it to.
 
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Shouldn't be warmer. Both the i7-860/870 and i7-2600 exhibit the same TDP of 95W. Same with the i5-2500.

It might be different if Windows enabled the on-CPU graphics core (i7 has HD3000, i5 has HD2000, which is clocked lower) but since there is a discrete GPU, it will most likely remain shut off, negating any heat/power usage difference.

Now the extra 2MB of L3 cache in the i7 may do it, but I doubt it.
 
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