Originally posted by: Elfear
Looks like the pencil trick will only increase vgpu to 1.4V (see post #188
here), which is still better than I was originally thinking. 1.7V is possible but only with some variable resistors and a little soldering. It didn't look like the vdimm could be increased like with the X1*** cards, but that isn't as important as the vgpu since the memory does pretty well on stock volts.
Didn't realize you were comparing the 7900GT to the X1800XT.

My statement still stand though about the clock speeds. In general, guys are hitting higher clocks with the X1800 series than the X1900 series. I'll have to do some looking to see how well the 7900GT's are doing.