Comparison of Sapphire Radeon RX Vega 64 video card vs EVGA GeForce RTX 2070 XC BLACK EDITION GAMING video card by specifications and benchmarks. Sapphire Radeon RX Vega 64 runs at 1.247 GHz base clock speed and has 8 GB of HBM2 memory, while video card EVGA GeForce RTX 2070 XC BLACK EDITION GAMING runs at 1.410 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 295 W, and the second is 175 W. Compare the table of benchmark results to find out which graphic card is better.