NVIDIA GeForce GTX 660 OEM 's Advantages
Lower TDP (130W vs 200W)
AMD Radeon HD 8950 OEM 's Advantages
Boost Clock has increased by 4% (925MHz vs 888MHz)
More VRAM (3GB vs 1GB)
Larger VRAM bandwidth (240.0GB/s vs 134.4GB/s)
640 additional rendering cores