No hard evidence on how 28nm will perform for all you know it could be a marginal upgrade or perhaps a rebadge.
Highly unlikely. Almost all professional website expected HD6000 and GTX500 series to be a minor 'refresh' of the previous generation. Sure HD6000 did a more drastic move from VLIW-5 to VLIW-4, but essentially it's based on the same fundamental architecture, just re-tweaked.
Contrary to this, NV's Kepler is not just a refreshed Fermi. The architecture is supposed to have 3-4x increase in dual precision efficiency. We should see a significant increase in performance from both camps, especially in regard to Tessellation. Similar, on the AMD side, the higher variants of the HD7000 series should constitute a brand new GCN architecture -- the largest architectural change on the AMD GPU side since HD2900XT series went with a unified shader architecture.
When the reviews come in on mature cards and they are good i willl eat my words and you can repost this to me and call me a idiot if that makes you feel better but high expectations for me anyways are low.
Not sure how you can have low expectations:
1) We are moving to a 28nm process from 40nm. This alone allows transistors to work at 40-45% faster speeds within the same power envelope.
2) That doesn't take into account any increases in performance that will come from architectural redesigns/major enhancements.
3) There should be a huge wave of next generation DX11 games once next generation of game consoles launch. We might see those games in 2-3 years, but they will arrive eventually. I have no doubts that current cards will not be fast enough to run them.
5770/67700 rebadge nvidia 400 series to 500 technically the same thing with lower power consumption nothing ground breaking.
For starters, HD6000 and GTX500 series were never meant to be a new generation. Sure marketing upped the numbers denoting a new generation, but among the in the know hardware enthusiasts, HD6000 and GTX500 series are not a new generation. They are just refreshes like X1900XT was to X1800XT and 7900GTX was to 7800GTX.
Biggest move of the last 5 years was the move from dx9 to dx10 with nvidia based cards every other series has been marginal ever since...
Completely untrue. GTX280 was way faster than 8800GTX. GTX480/580 is way faster than GTX280/285. In each of these cases, the performance increase was
at least 50%. The GTX580 is 2.8x faster than 8800GTX was.
On the AMD side, since HD2900XT/3870 sucked, the difference in performance was even more dramatic. HD4870 doubled the performance of the 3870, while HD6970 is about 68% faster than HD4890 is.
I don't consider these marginal performance increases.
Source
The problem now is unless you slap very high AA, or want 60 fps min frames or play at 2560x1600 or use multiple monitors, even today's GTX480/570/580/6950/6970 generation of cards is fast enough for 90% of games. The problem is games aren't demanding enough, not that GPUs aren't getting faster.
But look at BF3, and it becomes clear that something from HD4870/GTX260 216 era is a lot slower than today's top cards. And that's not taking into account that those cards aren't even producing the same image quality...