AMD Radeon HD 7970 GHz Edition 's Advantages
Released 3 years and 2 months late
Boost Clock1050MHz
More VRAM (3GB vs 512GB)
Larger VRAM bandwidth (288.0GB/s vs 51.20GB/s)
1408 additional rendering cores
ATI Radeon HD 4770 's Advantages
Lower TDP (80W vs 300W)