64-Bit Linux, Is It Time? Sep 12, 2008, 01 :32 UTC (6 Talkback[s]) (5012 reads) (Other stories by Jeff Anderson)
"Another big advantage of x86-64 is the inclusion of SSE and SSE2 into the core instruction set. This means that every 64-bit capable x86 processor will feature SSE and SSE2, and that compilers can make use of those extensions. Software that can take advantage of these instructions can get a large performance benefit if these instructions are used."
