Comparison of Intel HD Graphics 515 video card vs Intel Iris Plus Graphics 640 video card by specs and benchmarks. Intel HD Graphics 515 runs at 0.300 GHz base clock speed and has 16 GB of memory, while video card Intel Iris Plus Graphics 640 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.