Full Details from Amazon.com : http://www.amazon.com/gp/product/B003EM6CJE?tag=onigi-20
Intel Xeon X5650 Processor 2.66 GHz 12 MB Cache Socket LGA1366
Process Type Six-Core Intel Xeon Processor X5650
Frequency 266 GHz
Bus Speed 64 GTs
Cache 12 MB
Process 32 nm
Socket Socket 1366
