Comparison of MSI Radeon RX 580 Mech 2 8G OC video card vs Gainward GeForce RTX 3070 Phantom+ GS LHR video card by specifications and benchmarks. MSI Radeon RX 580 Mech 2 8G OC runs at 1.257 GHz base clock speed and has 8 GB of GDDR5 memory, while video card Gainward GeForce RTX 3070 Phantom+ GS LHR runs at 1.500 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 185 W, and the second is 270 W+ 23 %. Compare the table of benchmark results to find out which graphic card is better.