Comparison of PowerColor Radeon RX Vega 64 video card vs GIGABYTE GeForce RTX 2080 Windforce OC 8G video card by specifications and benchmarks. PowerColor Radeon RX Vega 64 runs at 1.247 GHz base clock speed and has 8 GB of HBM2 memory, while video card GIGABYTE GeForce RTX 2080 Windforce OC 8G runs at 1.515 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 215 W. Compare the table of benchmark results to find out which graphic card is better.