AMD Radeon HD 7970 GHz Edition 's Advantages
Boost Clock has increased by 14% (1050MHz vs 925MHz)
More VRAM (3GB vs 2GB)
Larger VRAM bandwidth (288.0GB/s vs 179.2GB/s)
768 additional rendering cores
AMD Radeon R7 265X OEM 's Advantages
Released 2 years and 2 months late
Lower TDP (150W vs 300W)