MMX : Computer Hardware Buyers’ Glossary
©1997-2017 Roedy Green of Canadian Mind Products
MMX (Multi-Media extension). This is
mostly a marketing ploy by Intel, akin to Gleam toothpaste’s GL/70 and
Chloret’s Retsyn. Other chip manufacturers are now also offering
MMX. Intel wants
you to think MMX is a true digital signal processor, but it is not.
Technically, MMX is a SIMD (Single Instruction Multiple Data)
auxiliary 64-bit processor integrated with the
CPU (Central Processing Unit) than can handle 2 identical 32-bit calculations at once, 4 16-bit or 8
8-bit. If your machine has a non-accelerated video card, MMX
may help. True dedicated hardware does the job faster and cheaper.
is primarily for jazzing up sound and 3D graphics in games. Not much software
currently exploits it, but most new computers are being sold with it, so software
should soon follow. You might think of it as a solution in search of a problem.