Comparison of Sapphire Radeon RX Vega 56 video card vs NVIDIA GeForce RTX 3080 Laptop (Mobile) - 135 W 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 NVIDIA GeForce RTX 3080 Laptop (Mobile) - 135 W runs at 1.260 GHz+ 14 % base clock speed and has 16 GB of GDDR6 memory. The TDP of the first video card is 210 W, and the second is 135 W+ 17 %. Compare the table of benchmark results to find out which graphic card is better.