Comparison of PowerColor Radeon RX Vega 56 Red Devil video card vs Gainward GeForce RTX 3080 Ti Phoenix video card by specifications and benchmarks. PowerColor Radeon RX Vega 56 Red Devil runs at 1.308 GHz+ 13 % base clock speed and has 8 GB of HBM2 memory, while video card Gainward GeForce RTX 3080 Ti Phoenix runs at 1.365 GHz base clock speed and has 12 GB of GDDR6X memory. The TDP of the first video card is 210 W, and the second is 350 W. Compare the table of benchmark results to find out which graphic card is better.