Comparison of PowerColor Radeon RX Vega 56 Red Devil video card vs Gainward GeForce RTX 3070 Phantom+ LHR 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 3070 Phantom+ LHR runs at 1.500 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 210 W, and the second is 250 W+ 14 %. Compare the table of benchmark results to find out which graphic card is better.