I have an ASUS Radeon HD7770 2GB GDDR5, and it's been acting like a heaping pile of melted silicon for a while now. Between "display driver AMD driver stopped responding" to the outright damnable performance I get in games, I highly suspect it's some sort of driver issue, but I can only find one AMD Catalyst Control Center copy for this thing. ASUS doesn't list any other driver for it. That's the facts. I'm running Windows 8.1 64 bit if that's any help.