Comparison of XFX Speedster MERC 319 Radeon RX 6900 XT Limited Black Gaming video card vs EVGA GeForce RTX 3090 KINGPIN HYDRO COPPER GAMING video card by specifications and benchmarks. XFX Speedster MERC 319 Radeon RX 6900 XT Limited Black Gaming runs at 2.150 GHz+ 18 % base clock speed and has 16 GB of GDDR6 memory, while video card EVGA GeForce RTX 3090 KINGPIN HYDRO COPPER GAMING runs at 1.395 GHz base clock speed and has 24 GB of GDDR6X memory. The TDP of the first video card is 300 W, and the second is 420 W+ 20 %. Compare the table of benchmark results to find out which graphic card is better.