Comparison of Sapphire Pulse Radeon RX 570 8GD5 video card vs XFX Speedster SWFT 309 Radeon RX 6700 XT Core Gaming video card by specifications and benchmarks. Sapphire Pulse Radeon RX 570 8GD5 runs at 1.168 GHz base clock speed and has 8 GB of GDDR5 memory, while video card XFX Speedster SWFT 309 Radeon RX 6700 XT Core Gaming runs at 2.321 GHz base clock speed and has 12 GB of GDDR6 memory. The TDP of the first video card is 150 W, and the second is 230 W. Compare the table of benchmark results to find out which graphic card is better.