PowerColor Official Website - Graphics, Cases, Power Supply -- PowerColor TurboDuo R9 280X 3GB GDDR5
PowerColor TurboDuo R9 280X 3GB GDDR5 OC (BF4 Edition) Part Number AXR9 280X 3GBD5-T2DHEG/OC Graphics Engine RADEON R9 280X Video Memory 3GB GDDR5 Engine Clock 880MHz (up to 1030MHz with boost) Memory Clock 1500MHz x4 (6.0 Gbps) ......