I’ve recently spent time researching Socket 771 Xeon CPUs, to figure out options when upgrading or building from scratch,  finally I’ve been able to connect some dots. There are two series of Quad-Core socket 771 Xeon available:  The Clovertown 53XX  and the Harpertown 54XX.  The Harpertown was released earlier this year and it boasts more on-board cache (12MB vs 8MB on 53XX Xeons) and higher clock rates. Read the rest of this entry »