Comparison of Sapphire Pulse Radeon RX 580 8G G5 video card vs Gainward GeForce RTX 3080 Ti Phantom GS video card by specifications and benchmarks. Sapphire Pulse Radeon RX 580 8G G5 runs at 1.257 GHz base clock speed and has 8 GB of GDDR5 memory, while video card Gainward GeForce RTX 3080 Ti Phantom GS runs at 1.365 GHz base clock speed and has 12 GB of GDDR6X memory. The TDP of the first video card is 185 W, and the second is 400 W+ 14 %. Compare the table of benchmark results to find out which graphic card is better.