Comparison of ASUS TUF Gaming Radeon RX 6700 XT OC Edition video card vs XFX Radeon RX Vega 56 video card by specifications and benchmarks. ASUS TUF Gaming Radeon RX 6700 XT OC Edition runs at 2.321 GHz base clock speed and has 12 GB of GDDR6 memory, while video card XFX Radeon RX Vega 56 runs at 1.156 GHz base clock speed and has 8 GB of HBM2 memory. The TDP of the first video card is 230 W, and the second is 210 W. Compare the table of benchmark results to find out which graphic card is better.