Comparison of XFX Speedster MERC 319 Radeon RX 6800 XT Black Gaming video card vs Colorful iGame GeForce RTX 3080 Ti Vulcan OC-V video card by specifications and benchmarks. XFX Speedster MERC 319 Radeon RX 6800 XT Black Gaming runs at 1.925 GHz+ 5 % base clock speed and has 16 GB of GDDR6 memory, while video card Colorful iGame GeForce RTX 3080 Ti Vulcan OC-V runs at 1.365 GHz base clock speed and has 12 GB of GDDR6X memory. The TDP of the first video card is 300 W, and the second is 370 W+ 6 %. Compare the table of benchmark results to find out which graphic card is better.