i'm waiting for proper benchmark and review myself. HD4870 / GTX 260 is good card and considering how i play game those card are a bit overkill for me. but the main attraction of HD5000 series is DX11. maybe i will wait a bit until mid range from DX11 class card before fully deciding on going to high end or mid range
Yes, very detailed, but also very unreliable: if the non-disclosure date was today then German, Dutch, French and British websites would have published their benchmarks by now, and they haven't done so.