Intel Xeon 5160 - 3 GHz - 2 cores - 4 MB cache - LGA771 Socket
Designed for dual-processor server and workstation platforms, Intel Xeon processors give you the freedom to focus more on your business, and helps you gain greater flexibility and lower costs.
INTEL XEON E5540 QUAD-CORE 64-BIT 2.53G
XEON E5430 QUAD-CORE 64-BIT - 2.66GHZ
REF QC XEON E5440 2.83/12MB L2/DL360G5