Comparison of MSI Radeon RX 5700 XT Mech video card vs XFX Speedster SWFT 309 Radeon RX 6700 XT Core Gaming video card by specifications and benchmarks. MSI Radeon RX 5700 XT Mech runs at 1.605 GHz base clock speed and has 8 GB of GDDR6 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 225 W, and the second is 230 W. Compare the table of benchmark results to find out which graphic card is better.