I would think the cache could be just as hot or hotter. The cache is the swap for all the instructions. The more the cache is utilized the faster the chip can load the data. I have no idea as to heat, but logically I could assume it wouldn't be a cool area on the chip. If memory sticks get warm with a large surface area, imagine the memory created with the .13 micron on the die.
I remember seeing a thermal image of a core before. Does anyone have a pic of it or know where to find one on the recent chips?
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