Comparison of Sapphire Nitro+ Radeon RX Vega 64 video card vs KFA2 GeForce GTX 1660 Ti Prodigy 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 KFA2 GeForce GTX 1660 Ti Prodigy runs at 1.500 GHz base clock speed and has 6 GB of GDDR6 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.