To put all this e-peen fighting to rest, we really haven't seen a major leap in single GPU technology since October of '09 when AMD put out the Radeon 5870. In April of 2010 we saw nVidia much delayed GTX480, and of course both sides put out refreshes with the 6970 and GTX580 pushing each companies' flagship ever so slightly higher. So anyone suggesting that any one side has been disappointing is full of themselves, and it should be obvious why any of us are anxious to get our hands on these next gen parts.
Of course the major reason we have not seen a major leap in GPU technology is because we've been stuck at 40nm since '09 (in fact the Radeon 4770 debuted as far back as April 28, 2009) meaning we've ultimately been without a new process shrink for GPUs going on
2.5 years, that's like 75 in computer years
So yeah, even though I'm currently using nVidia because I can make use of CUDA for work as much as I use the GPU for gaming, I'm starved enough for single GPU gaming performance that I would buy a Radeon 7900 in a heartbeat to tide me over until I can get a Kepler based card to replace my GTX580 (although if Kepler's single GPU game performance wasn't in line with a Radeon 7900, I'd skip it), for me 28nm GPUs can't get here fast enough, so any news of further delay from either side is very disheartening for me, and should be for anyone
How is the gtx580 the best card, are you purely judging on 1080p?
because its simply the best single GPU card money can buy? and by a convincing margin?
http://www.anandtech.com/bench/Product/292?vs=305
looks to me like the GTX580 wins every benchmark except for one game at one resolution and its only other performance loss is in a synthetic benchmark, not a game. Sure, it loses power consumption, but as I will point out later, its loads for idle and games aren't unreasonable
sure, the 580's
value is still very much subjective, but that doesn't stop it from being the fastest single GPU card money can buy (again, wins in dozens of benchmarks should prove that convincingly, to make an argument otherwise is ridiculous).
if you really want to get into the semantics of GPU value we can make arguments all day that make the 6900s look like extremely poor values in comparison to the GTX460s or even AMD's own 6800s
The much cheaper 6970 has something to say when we're talking 1600p
Nope, not even 1600p, the GTX580 is still better, see benches above, only technically loses once, and by a negligible margin
or multi-monitor and multi-card scenario
Again, an entirely different animal. Multi monitor solutions all but
require multiple GPUs to get playable frame rates for modern games without sacrificing image quality to ridiculous levels. Again, the argument was over the best GPU, not best multi card, which could still be argued in favor of nVidia, but I'm not even going to get in to that as it wasn't the original point of contention
all while using a lot less power
+11W difference in idle and +49W difference in the most stressful game loads means difference in total system power draw is pretty much in line with the % performance advantage the GTX580 offers, so performance per watt really isn't an advantage for AMD with the 6970 vs. GTX580
3x 6970 costs nearly the same as 2x gtx580. Which one wins?
Again, it was pretty obvious, at least to me, that he was talking about single GPU
Also, the top single card is the 6990.
See above