Comparison of PowerColor Radeon RX Vega 56 Red Devil video card vs MANLI GeForce GTX 1080 (F309G+N425) video card by specifications and benchmarks. PowerColor Radeon RX Vega 56 Red Devil runs at 1.308 GHz+ 13 % base clock speed and has 8 GB of HBM2 memory, while video card MANLI GeForce GTX 1080 (F309G+N425) runs at 1.607 GHz base clock speed and has 8 GB of GDDR5X memory. The TDP of the first video card is 210 W, and the second is 180 W. Compare the table of benchmark results to find out which graphic card is better.