Comparison of Sapphire Nitro+ Radeon RX 6800 XT video card vs MANLI GeForce RTX 2080 SUPER (P1467+N502-00) video card by specifications and benchmarks. Sapphire Nitro+ Radeon RX 6800 XT runs at 1.925 GHz+ 5 % base clock speed and has 16 GB of GDDR6 memory, while video card MANLI GeForce RTX 2080 SUPER (P1467+N502-00) runs at 1.650 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 250 W. Compare the table of benchmark results to find out which graphic card is better.