Hackernews posts about x64

x64 is a 64-bit instruction set architecture used in modern CPUs, specifically designed for large-scale computing and high-performance applications.

Related: x86   AArch64  
  1. Pi-sized x86_64 Devlopment board (interfacinglinux.com)
  2. x64 Cheatsheet [pdf] (www.cs.tufts.edu)