Comparison of XFX Radeon RX 580 GTS XXX Edition 8GB video card vs Gainward GeForce RTX 3080 Phantom video card by specifications and benchmarks. XFX Radeon RX 580 GTS XXX Edition 8GB runs at 1.257 GHz base clock speed and has 8 GB of GDDR5 memory, while video card Gainward GeForce RTX 3080 Phantom runs at 1.440 GHz base clock speed and has 10 GB of GDDR6X memory. The TDP of the first video card is 185 W, and the second is 340 W+ 6 %. Compare the table of benchmark results to find out which graphic card is better.