Comparison of AMD Radeon HD 7640G video card vs AMD Custom Radeon Graphics (XBox Series S) video card by specifications and benchmarks. AMD Radeon HD 7640G runs at 0.500 GHz base clock speed and has 2 GB of memory, while video card AMD Custom Radeon Graphics (XBox Series S) runs at 1.570 GHz base clock speed and has 8 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.