1 minutes 22 seconds on Google... see last line... HP DC7600 Processor Intel® Pentium® D Dual Core Processor 820 Essentials Status EOIS Launch Date Q2'05 Processor Number 820 # of Cores 2 # of Threads 2 Clock Speed 2.8 GHz L2 Cache 2 MB Bus/Core Ratio 14 FSB Speed 800 MHz FSB Parity No Instruction Set 64-bit