Comparison of PowerColor Radeon RX Vega 64 video card vs ASUS Dual Radeon RX 6700 XT OC Edition 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 ASUS Dual Radeon RX 6700 XT OC Edition runs at 2.321 GHz base clock speed and has 12 GB of GDDR6 memory. The TDP of the first video card is 295 W, and the second is 230 W. Compare the table of benchmark results to find out which graphic card is better.