Comparison of Sapphire Nitro+ Radeon RX 6800 XT SE video card vs GALAX GeForce RTX 2080 Dual Black video card by specifications and benchmarks. Sapphire Nitro+ Radeon RX 6800 XT SE runs at 1.925 GHz+ 5 % base clock speed and has 16 GB of GDDR6 memory, while video card GALAX GeForce RTX 2080 Dual Black runs at 1.515 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 300 W, and the second is 215 W. Compare the table of benchmark results to find out which graphic card is better.