Comparison of SAPPHIRE NITRO+ Radeon RX 6700 XT video card vs Sapphire Nitro+ Radeon RX Vega 56 video card by specifications and benchmarks. SAPPHIRE NITRO+ Radeon RX 6700 XT runs at 2.321 GHz base clock speed and has 12 GB of GDDR6 memory, while video card Sapphire Nitro+ Radeon RX Vega 56 runs at 1.266 GHz+ 10 % base clock speed and has 8 GB of HBM2 memory. The TDP of the first video card is 260 W+ 13 %, and the second is 325 W+ 55 %. Compare the table of benchmark results to find out which graphic card is better.