Comparison of XFX Speedster MERC 319 Radeon RX 6800 Black Gaming video card vs Colorful iGame GTX 980 Ti 20th Anniversary Edition video card by specs and benchmarks. XFX Speedster MERC 319 Radeon RX 6800 Black Gaming runs at 1.850 GHz+ 9 % base clock speed and has 16 GB of GDDR6 memory, while video card Colorful iGame GTX 980 Ti 20th Anniversary Edition runs at 1.850 GHz+ 9 % base clock speed and has 6 GB of GDDR5 memory. The weight is different, -- vs --. The TDP of the first video card is 250 W, and the second is 250 W . Compare the benchmark results to find out which video card is better.