Da_BoKa

Whichever way you cut it, DDR550 memory is extremely useful when
the only means of radically raising CPU speed, and by inference
performance, is to crank FSB to 275MHz+. It would make a perfect partner
to a setup consisting of, say, AMD's Athlon 64 3000/3200 and/or Intel's
Pentium 4 2.8GHz/3.0GHz processors. These processors often overclock to
250MHz+ FSB with relatively innocuous cooling, and having synchronous
RAM allows you to extract maximum bandwidth and performance from said
setup.

http://www.hexus.net/content/reviews...lld19JRD05Mjg=