Comparison of GIGABYTE Radeon RX Vega 56 8G video card vs MANLI GeForce GTX 1660 Super (F347-1G+N537-10) video card by specifications and benchmarks. GIGABYTE Radeon RX Vega 56 8G runs at 1.156 GHz base clock speed and has 8 GB of HBM2 memory, while video card MANLI GeForce GTX 1660 Super (F347-1G+N537-10) runs at 1.530 GHz base clock speed and has 6 GB of GDDR6 memory. The TDP of the first video card is 210 W, and the second is 125 W. Compare the table of benchmark results to find out which graphic card is better.