Comparison of PowerColor Radeon RX Vega 64 Red Devil video card vs GIGABYTE GeForce GTX 1660 SUPER MINI ITX OC 6G video card by specifications and benchmarks. PowerColor Radeon RX Vega 64 Red Devil runs at 1.417 GHz+ 14 % base clock speed and has 8 GB of HBM2 memory, while video card GIGABYTE GeForce GTX 1660 SUPER MINI ITX OC 6G runs at 1.530 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 125 W. Compare the table of benchmark results to find out which graphic card is better.