Gizmag | AMD Radeon HD 7970 will be first GPU for desktop computers produced on a 28 nm ... Gizmag ... is compatible with PCI Express 3.0 and features 3GB of GDDR5 memory and 925MHz engine clock. It also supports Direct3D 11.1 to be released with Windows 8. AMD Radeon HD 7970 will be first GPU for desktop computers produced on a 28 nm. AMD Radeon HD 7990 and 7950 Details Leaked AMD Launches World's Fastest Single-GPU Graphics Card – the AMD Radeon™ HD 7970 AMD Radeon HD 7990 Dual-GPU Card Coming Q1 2012 |