Intel integrated graphics are not executed by the CPU, there is an intel designed GPU on the same die as the CPU. https://www.anandtech.com/show/9582/intel-sky

Intel integrated graphics are not executed by the CPU, there is an intel designed GPU on the same die as the CPU. https://www.anandtech.com/show/9582/intel-skylake-mobile-desktop-launch-architecture-analysis/6 https://www.anandtech.com/show/9582/intel-skylake-mobile-des... HBM is not exclusive to AMD, NVIDIA also ships GPUs using HBM (Tesla P100 and V100)