Comparison of Biostar Radeon RX Vega 56 8G video card vs GALAX GeForce RTX 2070 EX OC White 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 GALAX GeForce RTX 2070 EX OC White 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.