What is the different between the Pentium processor's socket?
Socket 5 is 320Pins & support CPU from 75Mhz to 166Mhz P54C or P54CS CPU.
Socket 7 is 321Pins & support CPU from 75Mhz to 200Mhz P54C or P54CS CPU.
An additional one pin for socket 7(UPVRM#) is added. This pin is for P55CT
originally but Intel cancel P55CT processor so the socket 7 is no different
between socket 5 for P54C & P54CS CPU at this moment.
Socket 8 is Pins & support CPU from 150Mhz to 200Mhz Pentium Pro CPU.