Comparison of XFX Speedster MERC 319 Radeon RX 6900 XT Black Gaming video card vs GIGABYTE GeForce RTX 2070 SUPER GAMING OC 3X 8G video card by specifications and benchmarks. XFX Speedster MERC 319 Radeon RX 6900 XT Black Gaming runs at 1.950 GHz+ 7 % base clock speed and has 16 GB of GDDR6 memory, while video card GIGABYTE GeForce RTX 2070 SUPER GAMING OC 3X 8G runs at 1.605 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 300 W, and the second is 215 W. Compare the table of benchmark results to find out which graphic card is better.