What is "MultiMedia eXtension" (MMX) technology and do I need it?

What is "MultiMedia eXtension" (MMX) technology and do I need it?

Ali Nasri (Computer Specialist, Mac 911 Inc.) gives expert video advice on: How important is the type of processor in my machine?; What is the difference between an "Intel" and "AMD" processor? and more...

MultiMedia eXtension technology refers to a set of instructions that come on Intel chips. When they're enabled, the programs that can take advantage of that will be able to run faster. There are not a lot of programs right now that can take advantage of MMX technologies. Right now, it's not really a big deal if your chip does have the MMX instructions set on it, but later on when programs come out, they can take advantage of it. It would be a good idea to get a chip with MMX.