Comparison of MSI Radeon RX Vega 64 Iron 8G video card vs Gainward GeForce GTX 1660 SUPER Ghost OC video card by specifications and benchmarks. MSI Radeon RX Vega 64 Iron 8G runs at 1.247 GHz base clock speed and has 8 GB of HBM2 memory, while video card Gainward GeForce GTX 1660 SUPER Ghost OC runs at 1.530 GHz base clock speed and has 6 GB of GDDR6 memory. The TDP of the first video card is 295 W, and the second is 125 W. Compare the table of benchmark results to find out which graphic card is better.