Comparison of Sapphire Nitro+ Radeon RX 5700 XT 8G video card vs SAPPHIRE PULSE Radeon RX 6700 XT video card by specifications and benchmarks. Sapphire Nitro+ Radeon RX 5700 XT 8G runs at 1.770 GHz+ 10 % base clock speed and has 8 GB of GDDR6 memory, while video card SAPPHIRE PULSE Radeon RX 6700 XT runs at 2.321 GHz base clock speed and has 12 GB of GDDR6 memory. The TDP of the first video card is 265 W+ 18 %, and the second is 230 W. Compare the table of benchmark results to find out which graphic card is better.