Comparison of Sapphire Nitro+ Radeon RX 6900 XT SE video card vs Sapphire Nitro+ Radeon RX Vega 64 video card by specifications and benchmarks. Sapphire Nitro+ Radeon RX 6900 XT SE runs at 1.825 GHz base clock speed and has 16 GB of GDDR6 memory, while video card Sapphire Nitro+ Radeon RX Vega 64 runs at 1.373 GHz+ 10 % base clock speed and has 8 GB of HBM2 memory. The TDP of the first video card is 363 W+ 21 %, and the second is 295 W. Compare the table of benchmark results to find out which graphic card is better.