They are using the ARM Neoverse V1 platform, so they aren't really greenfielding this. Comparatively the Altra uses the Neoverse N1 platform, which is an older

They are using the ARM Neoverse V1 platform, so they aren't really greenfielding this. Comparatively the Altra uses the Neoverse N1 platform, which is an older HPC design. The supercomputer is planned to be very GPU heavy, so while the CPUs offer SVE they really are primarily orchestrators to the GPU and wouldn't be a major factor regardless. They're the duct tape. Like many vendors in the ARM space, most of the real innovation and design comes from ARM.