5 ms·I could play mp3s on a 66Mhz CPU, though yes other tasks would make the playback stutter.by Jyaif 1y agoI could play mp3s on a 66Mhz CPU, though yes other tasks would make the playback stutter.oblio 1y agoI was doing it on Win 95 or 98, maybe the OS was using more RAM than yours?Jyaif 1y agoPossibly, I was on System 7.1.