Comparison of XFX Speedster QICK 319 Radeon RX 6700 XT Ultra Gaming video card vs XFX Radeon RX 6900 XT video card by specifications and benchmarks. XFX Speedster QICK 319 Radeon RX 6700 XT Ultra Gaming runs at 2.418 GHz+ 4 % base clock speed and has 12 GB of GDDR6 memory, while video card XFX Radeon RX 6900 XT runs at 1.825 GHz base clock speed and has 16 GB of GDDR6 memory. The TDP of the first video card is 230 W, and the second is 300 W. Compare the table of benchmark results to find out which graphic card is better.