XFX Double D Black Edition Radeon HD 7770 1GB GDDR5 PCI Express 3.0 x16 CrossFireX Support Video Card FX-777A-ZDB4 GPUs / Video Graphics Cards - Newegg.com
Meet the Radeon HD 7770 GHz Edition - AMD Radeon HD 7750 & Radeon HD 7770 GHz Edition Review: Evading The Price/Performance Curve