Comparison of Sapphire Nitro+ Radeon RX Vega 56 video card vs EVGA GeForce RTX 2080 Ti XC Black Edition Gaming video card by specifications and benchmarks. Sapphire Nitro+ Radeon RX Vega 56 runs at 1.266 GHz+ 10 % base clock speed and has 8 GB of HBM2 memory, while video card EVGA GeForce RTX 2080 Ti XC Black Edition Gaming runs at 1.350 GHz base clock speed and has 11 GB of GDDR6 memory. The TDP of the first video card is 325 W+ 55 %, and the second is 250 W. Compare the table of benchmark results to find out which graphic card is better.