OpenBSD supports a wide variety of different hardware architectures. Some platforms, such as i386 and amd64, have extensive support, and their web pages and release notes list pages and pages of supported hardware. Others, such as SGI, support only very specific hardware models.
OpenBSD’s currently supported hardware platforms include i386 (standard PC), amd64 (64-bit PC-style hardware), sparc64 (Sun-style hardware), SGI (Silicon Graphics), and others. It also supports old platforms such as the VAX and tiny computers like the Zaurus. The platforms that I find interesting include the following:
i386 . the Intel-compatible computer that has been popular for the past couple of decades
amd64 . AMD’s 64-bit extensions to the 32-bit ...