Comparison of Biostar Radeon RX Vega 56 8G video card vs EVGA GeForce RTX 2070 XC BLACK GAMING (RGB LED) video card by specifications and benchmarks. Biostar Radeon RX Vega 56 8G runs at 1.156 GHz base clock speed and has 8 GB of HBM2 memory, while video card EVGA GeForce RTX 2070 XC BLACK GAMING (RGB LED) runs at 1.410 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 175 W. Compare the table of benchmark results to find out which graphic card is better.