Surprisingly, as video cards have progressed over the decade, clock speeds are becoming less and less relevent (anybody here recall the first power hungry 120Mhz GeForce 256 made on 220nm from '99.. back before DDR memory)
Despite ALL THE HIGH PRAISE OF MOORE'S LAW, I find that
Amdalhs law is much more improtant
Back in '99 using higher than 1024x768 was considered needless and excessive. But with today's 3200 SP 5970, thats not enough pixels to show speedup.
We are seeing
LESS AND LESS SPEEDUP WITH EACH VIDEO CARD GENERATION.
Perhaps this quote from wikipedia illustrates the point best:
So next time you're overclocking that 5870 to dizzying 1Ghz stratosphere and wondering why you're only getting 1fps gain.. its no fluke... its Amdalhs law.. diminishing returns.