But really IMO DX9 performance in todays games is probably more important than tomorrows DX10 games in Vista.
True as long as there isn't a way to express the benefit, then there essentially is no benefit of A>B.
that's one of the reasons I was thinkng there was no rush on the R600 for this very reason, with AMD hoping by now something would come along to show even the supposedly relatively weak HD2900XT as having a discernable benefit over the GTX. They may need to wait until 1-2 months into sales for that, which kinda sucks for AMD because it means less cards sold close to the launch premium price, and potentially a moving what would've been easy to sell as a $500 card at $400 instead.
I see your point, but the games that will convince us to go DX10/Vista are not here, and there will be GPU refreshes out by the time they are.
Well that depends, FSX should hit with SP1 before the end of June (unless there's another beta bug found [3rd Beta now]), and the Crysis demo is rumoured June/July, so that would be before a refresh from either, but maybe not enough to be 'conclusive' of anything for anyone.
Still if R600XT offers better DX9 performance now than the 8800GTS 640MB it could still be a good buy. If it then offers better DX10 performance than the 8800GTX it would end up being a very good buy. But it has to compete price/performance-wise right now or it's not going to earn much appeal.
Exactly, just look at the GF8600 series. And while I say it's over priced I think I look at it more knowledageably than many consumers, and still do give it credit for DX10, just no too much or too little IMO.
I suspect that by the time we know the better architecture, that the refresh will focus on fixing some of the flaws in the lesser one.