Intel Xeon E5430 2.66GHz 1333MHz 12MB Socket 771 Quad-Core CPU Intel Xeon E5430 2.66 GHz Socket 771 Quad-Core CPU General Features: Intel Xeon Processor E5430 2.66 GHz Clock speed 1333 MHz FSB speed 12 MB L2 cache Socket 771 Quad-Core 8 Bus/Core ratio 64-bit instruction set 45 nm Lithography 80W maximum TDP (Thermal Design Power) 0.850V - 1.3500V VID voltage range Intel Virtualization Technology (VT-x) Intel 64 Idle States Enhanced Intel SpeedStep Technology