Comparison of ASUS Dual Radeon RX 580 OC 4G video card vs MSI GeForce GTX 1660 VENTUS XS 6G OC video card by specifications and benchmarks. ASUS Dual Radeon RX 580 OC 4G runs at 1.257 GHz base clock speed and has 4 GB of GDDR5 memory, while video card MSI GeForce GTX 1660 VENTUS XS 6G OC runs at 1.530 GHz base clock speed and has 6 GB of GDDR5 memory. The TDP of the first video card is 185 W, and the second is 130 W+ 8 %. Compare the table of benchmark results to find out which graphic card is better.