AMD did (briefly) sell ARM64 chips, the Optero A1100, aka "AMD Seattle" CPU - 4 or 8 Cortex-A57 cores at 1.7 or 2Ghz - support for up to 128 gig of either DDR

AMD did (briefly) sell ARM64 chips, the Optero A1100, aka "AMD Seattle" CPU - 4 or 8 Cortex-A57 cores at 1.7 or 2Ghz - support for up to 128 gig of either DDR3 or DDR4 memory - 14 SATA 3 ports - 2 10GbE ethernet ports - 8x PCI-E 3.0 (EDIT: Fixed formatting, sorry!)