Comparison of Sapphire Nitro+ Radeon RX Vega 56 video card vs SAPPHIRE PULSE AMD Radeon RX 6500 XT video card by specifications and benchmarks. Sapphire Nitro+ Radeon RX Vega 56 runs at 1.266 GHz+ 10 % base clock speed and has 8 GB of HBM2 memory, while video card SAPPHIRE PULSE AMD Radeon RX 6500 XT runs at 2.200 GHz base clock speed and has 4 GB of GDDR6 memory. The TDP of the first video card is 325 W+ 55 %, and the second is 130 W+ 21 %. Compare the table of benchmark results to find out which graphic card is better.