WCPUID is a great little utility made for Windows by H.ODA. Currently on version 3.3 and going strong as freeware, WCPUID is made to show the CPU status currently. This is good for overclocking, checking the type of processor, how much L2 cache, the memory clock speeds, Multipliers, and all sorts of very useful information regarding your processor . It basically gathers anything it can read off your motherboard and shows you everything associated with it.
Windows SystemInfo, eat your heart out.