rinval :
sry if this is off topic but just for curiosity from what ive seen and read which i will try to find it again but it would seem that the i5 sandy bridge and 15 ivy bridge on the same board and cooler overclocked to the same speed they have similar idle temp but the ivy bridge was slightly hotter under load so would that indicate that the processor produces slightly more heat?
unless toms is wrong they say up to 20c...
http://www.tomshardware.com/news/ivy-bridge-overclocking-high-temp,15512.html
Absolutely agree with everyone that ivb has a higher temperature than SB (I've got one). But because the amount of heat energy is lower (77 vs 95watts) it doesn't heat up the rest of the case as much, and case fans don't have to work as hard to keep the system cool.
I think you've got it.
But imagine putting an amount of heat energy into a huge block of material its temp would go up by a bit, imagine putting the same amount of hat energy into a tiny block of material, its temp would go up by a lot more. Different materials require different amounts of heat energy to raise the temp.
so the question for the OP is this:
is he worried about the amount of heat thats getting pumped out into the room/or his lap (also roughly equivalent to the amount of electrical energy and therefore running costs).
or
is he worried about the internal temperature of the chip (which if the cooling system is sufficient is irrelevant for nearly every reason imaginable other than an irrational fear of hot things)