AMD Radeon HD 6770 and 6750 spec sheets emerge, give NVIDIA cause for concernAMD Radeon HD 6770 and 6750 spec sheets emerge, give NVIDIA cause for concern Alright AMD, we still haven't forgiven you for burying the glorious name that was ATI, but if your next GPU refresh is as mighty as these numbers indicate, we might at least let you in from the doghouse. A slide detailing two flavors of the upcoming 40nm Barts chip has sprouted up from two independent sources online, and
