Although D has been around for longer, it's worth out that the Go amd64 (aka x64) compiler is the most mature compiler in the Go compiler suite (ARM, x86, amd64

Although D has been around for longer, it's worth out that the Go amd64 (aka x64) compiler is the most mature compiler in the Go compiler suite (ARM, x86, amd64) but AFAIK the D compiler is only available for 32-bit x86.