Comparison of Sapphire Nitro+ Radeon RX 6900 XT video card vs GALAX GeForce RTX 2080 Ti White (1-Click OC) RGB video card by specifications and benchmarks. Sapphire Nitro+ Radeon RX 6900 XT runs at 1.825 GHz base clock speed and has 16 GB of GDDR6 memory, while video card GALAX GeForce RTX 2080 Ti White (1-Click OC) RGB runs at 1.350 GHz base clock speed and has 11 GB of GDDR6 memory. The TDP of the first video card is 340 W+ 13 %, and the second is 250 W. Compare the table of benchmark results to find out which graphic card is better.