Comparison of Sapphire Nitro+ Radeon RX Vega 64 video card vs Gainward GeForce RTX 2080 Ti Phoenix video card by specifications and benchmarks. Sapphire Nitro+ Radeon RX Vega 64 runs at 1.373 GHz+ 10 % base clock speed and has 8 GB of HBM2 memory, while video card Gainward GeForce RTX 2080 Ti Phoenix runs at 1.350 GHz base clock speed and has 11 GB of GDDR6 memory. The TDP of the first video card is 295 W, and the second is 260 W+ 4 %. Compare the table of benchmark results to find out which graphic card is better.