A 1" die is not a 1" IHS. A IHS does not make heat. You have a die under the IHS, the IHS is not going to spread the heat from that die perfectly to all parts of the IHS. The heat will be concentrated in the area the die is under the IHS. If JoeC wants to mimic a CPU with a IHS he needs to make the die the same size as the CPU's die and then put a IHS on top of it. The extra TIM layer of the IHS adds another PITA to deal with.
It dosn't matter how accurate the data is if it applies to nothing.
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