Comparison of XFX Speedster QICK 319 Radeon RX 6750 XT Ultra Gaming video card vs PowerColor Radeon RX 6800 Red Devil video card by specs and benchmarks. XFX Speedster QICK 319 Radeon RX 6750 XT Ultra Gaming runs at 2.283 GHz+ 4 % base clock speed and has 12 GB of GDDR6 memory, while video card PowerColor Radeon RX 6800 Red Devil runs at 2.283 GHz+ 4 % base clock speed and has 16 GB of GDDR6 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.