Asus has released their gtx 590 already and here is a review..

also the guys from the lab also mentioned something about crysis 2


We used Unigine Heaven, Crysis (the original not the console port) and 3DMark11. Unigine is NVIDIA's favourite benchmark thanks to its superior tesselation units, and while interesting the 'extreme' tests push it to a level that will rarely be seen in games. Tesselation performance is a good thing, but there is a good enough level that is less than Unigine's 'extreme'.

Crysis is still a reasonably good barometer of performance. At the moment Crysis 2 is very locked down graphically, and the DX11 version is nowhere to be seen. Once that situation improves we'll look to switching benchmarks, but for now Crysis the first is more than adequate.

here's a link to the full review :

http://www.atomicmpc.com.au/News/252298,first-look-asus-geforce-gtx-590.aspx