Comparison of Intel UHD Graphics 620 video card vs Intel HD Graphics 4000 video card by specifications and benchmarks. Intel UHD Graphics 620 runs at 0.300 GHz base clock speed and has 16 GB of memory, while video card Intel HD Graphics 4000 runs at 0.650 GHz base clock speed and has 2 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.