Comparison of XFX Speedster ZERO Radeon RX 6900 XT RGB EKWB Waterblock Limited Edition video card vs ASUS Dual GeForce RTX 2080 Ti video card by specifications and benchmarks. XFX Speedster ZERO Radeon RX 6900 XT RGB EKWB Waterblock Limited Edition runs at 2.200 GHz+ 21 % base clock speed and has 16 GB of GDDR6 memory, while video card ASUS Dual GeForce RTX 2080 Ti runs at 1.350 GHz base clock speed and has 11 GB of GDDR6 memory. The TDP of the first video card is 300 W, and the second is 250 W. Compare the table of benchmark results to find out which graphic card is better.