Dual GPU Fermi on the way

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Lonyo

Lifer
Aug 10, 2002
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I tend to think that the type of people who buy 200-300w TDP GPUs would be plenty willing to buy a 200W TDP CPU. But since they are such a small portion of the market, theres no real need to.




Modern CPUs are restricted to roughly <125W TDP by OEMs, not enthusiasts

It's not only the OEM's that cause it, it's other things like heat dissipation.
A Core i7 die is 263mm^2 and has a TDP of 130w, while the 190w (for the CARD mind, not just the GPU) of the HD5870 has 334mm^2 of area. Some of the power is going to the PCB/RAM etc, whereas on a CPU that's all CPU power.
With a 300w GPU, that 300w is spread over two cores each at 334mm^2.

I would think that thermal considerations come into play at the high end.
A 200w TDP CPU with a smaller die size than a GPU and without the ability to run at such high temps, and with higher power requirements would be pretty difficult to cool without liquid.