Comparison of Sapphire Pulse Radeon RX 6800 video card vs GALAX GeForce RTX 2080 Ti OC White video card by specifications and benchmarks. Sapphire Pulse Radeon RX 6800 runs at 1.800 GHz+ 6 % base clock speed and has 16 GB of GDDR6 memory, while video card GALAX GeForce RTX 2080 Ti OC White runs at 1.350 GHz base clock speed and has 11 GB of GDDR6 memory. The TDP of the first video card is 250 W, and the second is 250 W. Compare the table of benchmark results to find out which graphic card is better.