Comparison of Sapphire Radeon RX Vega 64 video card vs GIGABYTE GeForce RTX 2080 SUPER Windforce 8G video card by specifications and benchmarks. Sapphire Radeon RX Vega 64 runs at 1.247 GHz base clock speed and has 8 GB of HBM2 memory, while video card GIGABYTE GeForce RTX 2080 SUPER Windforce 8G runs at 1.650 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 295 W, and the second is 250 W. Compare the table of benchmark results to find out which graphic card is better.