Comparison of AMD Radeon HD 8400 video card vs Intel Iris Graphics 5100 video card by specs and benchmarks. AMD Radeon HD 8400 runs at 0.600 GHz base clock speed and has 2 GB of memory, while video card Intel Iris Graphics 5100 runs at 0.600 GHz base clock speed and has 2 GB of memory. The weight is different, -- vs --. The TDP of the first video card is --, and the second is -- . Compare the benchmark results to find out which video card is better.