Comparison of XFX AMD Radeon RX 570 RS 8GB Black Edition video card vs PowerColor Radeon RX Vega 64 Limited Edition video card by specifications and benchmarks. XFX AMD Radeon RX 570 RS 8GB Black Edition runs at 1.168 GHz base clock speed and has 4 GB of GDDR5 memory, while video card PowerColor Radeon RX Vega 64 Limited Edition runs at 1.247 GHz base clock speed and has 8 GB of HBM2 memory. The TDP of the first video card is 150 W, and the second is 295 W. Compare the table of benchmark results to find out which graphic card is better.