I was ordering the graphic card at once with ssd drive so it was installed on clean install of windows
my problem is not in the pci express speed but in gpu frequency throttling during gaming
as to testing card in another pc will do in few days but maybe its a software issue
i never had...
http://i.imgur.com/NiTsRIX.png here is gpuz showing the speed in slot that is causing the problems
as to the bios unfortuanatly gigabyte cut out all important functions and is ultrabasic mode
Thanks for your reply
I reinstalled drivers several times in different versions
unfortunately full-screen mode does not change a thing
may it be caused by broken pcie slot? when i put card in x4 slot which is normally used in crossfire setup that problem does not appear
sorry for being lazy bastard but i described my issue on another forum here is the link
http://forums.amd.com/game/messageview.cfm?catid=443&threadid=175180&enterthread=y