Originally, computers had a separate quartz crystal on the motherboard ... Brands Ranked Worst To Best At its most simplistic ...
CrystalMark Retro 2.0 has just been released and it's a benchmark tool that supports everything from Windows 95 right up to Windows 11.
The SNES’ main CPU, featuring a quartz crystal, is okay. But the console’s audio processing unit, which uses a ceramic resonator, is now running faster and speeds up as the hardware warms.