NVIDIA GeForce GTX 660 Rev. 2 's Advantages
Lower TDP (140W vs 230W)
AMD Radeon Pro WX 9100 's Advantages
Released 2 years and 10 months late
Boost Clock has increased by 45% (1500MHz vs 1032MHz)
More VRAM (16GB vs 2GB)
Larger VRAM bandwidth (483.8GB/s vs 144.2GB/s)
3136 additional rendering cores