Comparison of Intel Iris Graphics 6100 video card vs AMD Radeon HD 7420G video card by specs and benchmarks. Intel Iris Graphics 6100 runs at 0.300 GHz base clock speed and has 16 GB of memory, while video card AMD Radeon HD 7420G runs at 0.300 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.