Comparison of PowerColor Radeon RX Vega 56 Nano Edition video card vs Gainward GeForce RTX 3080 Phantom GS V1 LHR video card by specifications and benchmarks. PowerColor Radeon RX Vega 56 Nano Edition runs at 1.156 GHz base clock speed and has 8 GB of HBM2 memory, while video card Gainward GeForce RTX 3080 Phantom GS V1 LHR runs at 1.440 GHz base clock speed and has 10 GB of GDDR6X memory. The TDP of the first video card is 210 W, and the second is 370 W+ 16 %. Compare the table of benchmark results to find out which graphic card is better.