AMD Radeon R9 280 's Advantages
Released 2 years and 10 months late
Boost Clock933MHz
More VRAM (3GB vs 1GB)
Larger VRAM bandwidth (240.0GB/s vs 91.87GB/s)
1504 additional rendering cores
NVIDIA GeForce GTX 555 OEM 's Advantages
Lower TDP (150W vs 200W)