MUCH HAS CHANGED
in the realm of server and workstation processors since our last round of tests, just before Intel's "Woodcrest" Xeon 5100 series debuted
. Those Xeons have now made their way into the market, and AMD has countered with Socket F Opterons that promise higher performance and lower power consumption. More recently, Intel unleashed its new quad-core "Clovertown" Xeon 5300 series that aims for an even higher performance plateau.
As a result, the time has come for us to turn our attention once again to server/workstation-class processors and see how these latest offerings compare. To that end, we've employed a revised set of extensively multithreaded benchmarks and new methods for testing energy efficiency. What we've found is excellence on several fronts from both camps, in a market that is more tightly contested than ever. Read on for our results and analysis.