Comparison of XFX Speedster MERC 319 Radeon RX 6700 XT Black Gaming video card vs Gainward GeForce RTX 3080 Phantom+ GS LHR video card by specifications and benchmarks. XFX Speedster MERC 319 Radeon RX 6700 XT Black Gaming runs at 2.457 GHz+ 6 % base clock speed and has 12 GB of GDDR6 memory, while video card Gainward GeForce RTX 3080 Phantom+ GS LHR runs at 1.440 GHz base clock speed and has 10 GB of GDDR6X memory. The TDP of the first video card is 211 W-8 %, and the second is 370 W+ 16 %. Compare the table of benchmark results to find out which graphic card is better.