NVIDIA GeForce GTX 660 Rev. 2 's Advantages
Lower TDP (140W vs 345W)
AMD Radeon RX Vega 64 Liquid Cooling 's Advantages
Released 2 years and 11 months late
Boost Clock has increased by 62% (1677MHz vs 1032MHz)
More VRAM (8GB vs 2GB)
Larger VRAM bandwidth (483.8GB/s vs 144.2GB/s)
3136 additional rendering cores