86 Family CPU

No one can seem to tell me the difference between the two (45nm and x38)? What do these numbers mean, and are they both just CPU’s of different generations? I can’t seem to see these numbers in any specifications for processors, so how do you know which processors are which? I hope you can help, since no one I know can tell me. It’s important because I want to buy a new motherboard and want to make sure everything is compatible. Also, if you can tell me, what does the 775 number mean? I sent a copy of this to my brother, who knows a lot more about computers than I do.A few quick answers for you:The 775 number refers to a “775 socket”. A computer’s CPU will plug into a certain type of slot on the motherboard. The 775 socket is a certain type of slot. If you have a motherboard with a 775 socket type, and you’re purchasing a CPU for it, you want to make sure the CPU is also a 775 socket type.The “x38″ number you mention is probably a partial description. It’s most likely a variation of “x386″ or “x86″. A 386 processor or “x86″ processor is a certain type of CPU used in old computers. Compared to today’s machines, this processor was very slow.Finally, “45nm”: This is a certain type of advanced processor. Read for more detail on the 45nm semiconductor.All these numbers are pretty technical, and are generally not considered when purchasing a new PC. (That’s for the general population - if you’re a techie, these numbers might be pretty important!) Also see this link for minimum hardware recommendations when purchasing a new computer.