Comparison of Sapphire Nitro+ Radeon RX Vega 64 video card vs EVGA GeForce GTX 1660 SC ULTRA GAMING video card by specifications and benchmarks. Sapphire Nitro+ Radeon RX Vega 64 runs at 1.373 GHz+ 10 % base clock speed and has 8 GB of HBM2 memory, while video card EVGA GeForce GTX 1660 SC ULTRA GAMING runs at 1.530 GHz base clock speed and has 6 GB of GDDR5 memory. The TDP of the first video card is 295 W, and the second is 120 W. Compare the table of benchmark results to find out which graphic card is better.