Comparison of Sapphire Pulse Radeon RX 5700 XT 8G video card vs PowerColor Radeon VII video card by specifications and benchmarks. Sapphire Pulse Radeon RX 5700 XT 8G runs at 1.670 GHz+ 4 % base clock speed and has 8 GB of GDDR6 memory, while video card PowerColor Radeon VII runs at 1.400 GHz base clock speed and has 16 GB of HBM2 memory. The TDP of the first video card is 235 W+ 4 %, and the second is 300 W. Compare the table of benchmark results to find out which graphic card is better.