Comparison of Intel UHD Graphics 620 video card vs Intel Iris Graphics 5100 video card by specs and benchmarks. Intel UHD Graphics 620 runs at 0.300 GHz base clock speed and has 16 GB of memory, while video card Intel Iris Graphics 5100 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.