Comparison of Sapphire Radeon RX 5700 XT 8G video card vs EVGA GeForce RTX 3090 FTW3 ULTRA GAMING 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 EVGA GeForce RTX 3090 FTW3 ULTRA GAMING runs at 1.395 GHz base clock speed and has 24 GB of GDDR6X memory. The TDP of the first video card is 225 W, and the second is 420 W+ 20 %. Compare the table of benchmark results to find out which graphic card is better.