To continue with the nitpicking: Although Doom was "originated" on NeXT the original NeXT implementation was only meant as debugging aid and did graphics output

To continue with the nitpicking: Although Doom was "originated" on NeXT the original NeXT implementation was only meant as debugging aid and did graphics output by essentially emulating VGA in user space and didn't support sound at all. Also NeXT is more or less normal Unix workstation with m68k CPU and framebuffer and does not have convoluted architecture with tightly coupled various multimedia accelerators that Amiga has. And while the Amiga's architecture was good way to get impresive performance in 80's it is also the reason why Amiga could not keep up in the 90's as removing all the NTSC video related stuff would break backward compatibility.