Radeon R9 280 's Advantages
Released 1 years and 9 months late
Lower TDP (200W vs 300W)
Radeon HD 7970 GHz Edition 's Advantages
Boost Clock has increased by 13% (1050MHz vs 933MHz)
Larger VRAM bandwidth (288.0GB/s vs 240.0GB/s)
256 additional rendering cores