Comparison of Sapphire Nitro+ Radeon RX Vega 64 video card vs PowerColor Fighter Radeon RX 6500 XT 4GB video card by specifications and benchmarks. Sapphire Nitro+ Radeon RX Vega 64 runs at 1.373 GHz+ 10 % base clock speed and has 8 GB of HBM2 memory, while video card PowerColor Fighter Radeon RX 6500 XT 4GB runs at 2.200 GHz base clock speed and has 4 GB of GDDR6 memory. The TDP of the first video card is 295 W, and the second is 107 W. Compare the table of benchmark results to find out which graphic card is better.