Comparison of Sapphire Pulse Radeon RX Vega 56 video card vs ASUS Dual GeForce GTX 1660 OC EVO video card by specifications and benchmarks. Sapphire Pulse Radeon RX Vega 56 runs at 1.208 GHz+ 4 % base clock speed and has 8 GB of HBM2 memory, while video card ASUS Dual GeForce GTX 1660 OC EVO runs at 1.530 GHz base clock speed and has 6 GB of GDDR5 memory. The TDP of the first video card is 280 W+ 33 %, and the second is 120 W. Compare the table of benchmark results to find out which graphic card is better.