Comparison of ASUS AREZ Strix Radeon RX Vega 64 OC Gaming video card vs GIGABYTE GeForce GTX 1660 OC 6G video card by specifications and benchmarks. ASUS AREZ Strix Radeon RX Vega 64 OC Gaming runs at 1.298 GHz+ 4 % base clock speed and has 8 GB of HBM2 memory, while video card GIGABYTE GeForce GTX 1660 OC 6G 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.