socket for cpu's

[berger034]

the barage of stupid question from a noob begins. What is the dif between socket 423 and 478?
thank you
berger034

 

[OverVolt]

Socket 423 was for the older P4's with the Willamette core and 256k L2 cache. They ran at higher voltage, and hotter than the Northwood. I think they went to 2.0Ghz at 400fsb, something around there.

Socket 478 is for the more recent Northwood core with 512k L2 cache. They run from 400-800fsb (533fsb in the middle there). These are what you would buy if u decided to go with a P4. There's no reason to buy a sock423 willamette over a sock478 Northwood.

 

[SexyK]

OverVolt has it right. If you're looking for a physical difference, the number in the name represents the number of pins the socket handles.