AMD Radeon HD 7990 's Advantages
Released 1 years and 11 months late
Boost Clock1000MHz
More VRAM (3GB vs 1024GB)
Larger VRAM bandwidth (288.0GB/s vs 128.0GB/s)
1712 additional rendering cores
NVIDIA GeForce GTX 560 's Advantages
Lower TDP (150W vs 375W)