Comparison of Intel UHD Graphics 620 video card vs Intel Iris Xe Graphics 80 (Tiger Lake G7) 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 Xe Graphics 80 (Tiger Lake G7) runs at 0.300 GHz base clock speed and has 32 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.