Comparison of XFX Speedster MERC 319Radeon RX 6750 XT Black Gaming video card vs ZOTAC GAMING GeForce RTX 2080 Ti Triple Fan video card by specifications and benchmarks. XFX Speedster MERC 319Radeon RX 6750 XT Black Gaming runs at 2.324 GHz+ 6 % base clock speed and has 12 GB of GDDR6 memory, while video card ZOTAC GAMING GeForce RTX 2080 Ti Triple Fan runs at 1.350 GHz base clock speed and has 11 GB of GDDR6 memory. The TDP of the first video card is 250 W, and the second is 250 W. Compare the table of benchmark results to find out which graphic card is better.