AMD Radeon HD 7970 GHz Edition 's Advantages
Released 3 years and 9 months late
Boost Clock1050MHz
More VRAM (3GB vs 256GB)
Larger VRAM bandwidth (288.0GB/s vs 10.48GB/s)
1968 additional rendering cores
ATI Radeon HD 4550 's Advantages
Lower TDP (25W vs 300W)