Chiphell said that Radeon HD 5870 1GB did a 43 FPS average with minimum of 30 and maximum of 54 on Crysis with 1900x1200, 4AA+, 16AF, DX10 e Very High.
The test was maded on a AMD Phenom II X4 955BE with Windows 7 RTM.
Just for comparision, a Radeon HD 4890/GeForce GTX 275/285 on the same conditions did a 18~22 FPS and a Radeon 4870 X2 / GTX 295 did 25~30 FPS.
As we can see, the performance of the new Radeon is great with a price of U$D 399,00.
