Comparison of Intel HD Graphics 510 video card vs Intel Iris Plus Graphics 645 video card by specs and benchmarks. Intel HD Graphics 510 runs at 0.350 GHz base clock speed and has 32 GB of memory, while video card Intel Iris Plus Graphics 645 runs at 0.350 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.