IzzyCraft :
Both nvidia and ati have "eyefinity" for lack of better word on nvidia
Still need 2 cards for nV, so their solution is less than that of a single GTX480 plus MATROX TripleHead2GO let alone Eyefinity. Software multi-monitor surround gaming has been capable for a while, it's because of those drawbacks that a hardware solution was of note.
both nvidia and ati have 3d stereo
ati has had eyefinity out for awhile now, nvidia has had 3d out for awhile now...
Both had 3D stereo for alot longer than most of you have been gaming, so it's not new, it's just becoming more mainstream (with BestBuy selling 3D TVs and BluRays now).
The only diff is this gen 5xxx vs 4xx ati has had a long time of actually having the gpu to pbc out there while nvidia has pretty much just barely settled on their final gpu configuration and clocks.
What does the final clocks have to do with it? Are you telling me that ATi has to re-write drivers anytime and OEM or end-user overclocks/underclocks their card?
C'mon, nV has had working silicon in hand (not just held aloft) since October, now that it's a handful then and then a few dozen in Novemeber means they've had a solid 4 months to develop drivers. It's not like they just came to the game. Sure They launched 7 months after ATi, but ATi only had working silicon boards 3-4 months before them in July/August (with similar production volumes issue with TSMCs), so it's not like the lead in driver development is anywhere near the difference people make it out to be, and especially not in a new game, where they both have had equal time to develop for it.
Both will continue to try to squeeze out extra performance from the chips it's just that nvidia is behind on development time for those optimizations but hey their fault for making a chip that can't really make lol...
The main area to me that they are behind is in the glitch fix area since they don't have the install base to work from, but for optimizing new games both camps are going to be pretty even, especially anything in the TWIMTBP camp, which as smiling mentions will likely lose a little of its dominance over time (although still likely have a bit of an advantage).