(Ubuntu) linux: how to find out what processor/CPU

Open a terminal (Applications -> Accessories -> Terminal in Ubuntu 10.04) and type:

less /proc/cpuinfo

This gives a lot of information. Look for the ‘model name’ entry the top of the list.

For example, here are the first several lines of my /proc/cpuinfo:

processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 28
model name : Intel(R) Atom(TM) CPU N270 @ 1.60GHz
stepping : 2
cpu MHz : 800.000
cache size : 512 KB
…

Press the spacebar to go down a ‘page’ and ‘q’ to quit.