Comparison of MSI Radeon RX Vega 56 8G video card vs Colorful iGame GeForce GTX 1660 Ultra 6G-V video card by specifications and benchmarks. MSI Radeon RX Vega 56 8G runs at 1.156 GHz base clock speed and has 8 GB of HBM2 memory, while video card Colorful iGame GeForce GTX 1660 Ultra 6G-V runs at 1.530 GHz base clock speed and has 6 GB of GDDR5 memory. The TDP of the first video card is 210 W, and the second is 120 W. Compare the table of benchmark results to find out which graphic card is better.