Comparison of AMD Radeon RX 680M video card vs AMD Radeon RX Vega M GL Graphics video card by specifications and benchmarks. AMD Radeon RX 680M runs at 2.000 GHz base clock speed and has 8 GB of memory, while video card AMD Radeon RX Vega M GL Graphics runs at 0.930 GHz base clock speed and has 4 GB of memory. The TDP of the first video card is --, and the second is --. Compare the table of benchmark results to find out which graphic card is better.