AMD Radeon R9 285 's Advantages
Released 2 years and 3 months late
Lower TDP (190W vs 300W)
AMD Radeon HD 7970 GHz Edition 's Advantages
Boost Clock1050MHz
More VRAM (3GB vs 2GB)
Larger VRAM bandwidth (288.0GB/s vs 176.0GB/s)
256 additional rendering cores