Comparison of XFX Radeon RX 5700 XT Double Dissipation video card vs KFA2 GeForce RTX 3080 SG (1-Click OC) LHR video card by specifications and benchmarks. XFX Radeon RX 5700 XT Double Dissipation runs at 1.605 GHz base clock speed and has 8 GB of GDDR6 memory, while video card KFA2 GeForce RTX 3080 SG (1-Click OC) LHR runs at 1.440 GHz base clock speed and has 10 GB of GDDR6X memory. The TDP of the first video card is 225 W, and the second is 320 W. Compare the table of benchmark results to find out which graphic card is better.