Murjuk
I've already checked it for max OC and it's working stable at 950MHZ@1.262V/1100MHZ (tested for about 30 minutes in OCCT :] ). Max memory overclock is dissapointing. Even at 1150MHz without GPU OC at all my card hangs in 3D :/
well, thx for info, gonna flash some 6870 bios too :)