Comparison of Sapphire Radeon RX 5700 XT 8G video card vs GALAX GeForce RTX 2080 EX Gamer (1-Click OC) video card by specifications and benchmarks. Sapphire Radeon RX 5700 XT 8G runs at 1.605 GHz base clock speed and has 8 GB of GDDR6 memory, while video card GALAX GeForce RTX 2080 EX Gamer (1-Click OC) runs at 1.515 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 225 W, and the second is 215 W. Compare the table of benchmark results to find out which graphic card is better.