Comparison of GIGABYTE Radeon RX Vega 56 Gaming OC 8G video card vs Colorful GeForce GTX 1660 Ti NB 6G-V video card by specifications and benchmarks. GIGABYTE Radeon RX Vega 56 Gaming OC 8G runs at 1.170 GHz+ 1 % base clock speed and has 8 GB of HBM2 memory, while video card Colorful GeForce GTX 1660 Ti NB 6G-V runs at 1.500 GHz base clock speed and has 6 GB of GDDR6 memory. The TDP of the first video card is 250 W+ 19 %, and the second is 120 W. Compare the table of benchmark results to find out which graphic card is better.