Comparison of Sapphire Radeon RX Vega 56 video card vs MANLI GeForce RTX 2080Ti (M3423+N504) video card by specifications and benchmarks. Sapphire Radeon RX Vega 56 runs at 1.156 GHz base clock speed and has 8 GB of HBM2 memory, while video card MANLI GeForce RTX 2080Ti (M3423+N504) runs at 1.350 GHz base clock speed and has 11 GB of GDDR6 memory. The TDP of the first video card is 210 W, and the second is 250 W. Compare the table of benchmark results to find out which graphic card is better.