Comparison of GIGABYTE AORUS Radeon RX 6800 XT Master 16G video card vs PowerColor Radeon RX Vega 64 Red Devil video card by specifications and benchmarks. GIGABYTE AORUS Radeon RX 6800 XT Master 16G runs at 1.825 GHz base clock speed and has 16 GB of GDDR6 memory, while video card PowerColor Radeon RX Vega 64 Red Devil runs at 1.417 GHz+ 14 % base clock speed and has 8 GB of HBM2 memory. The TDP of the first video card is 300 W, and the second is 295 W. Compare the table of benchmark results to find out which graphic card is better.