There's 2 Centrino, namely the single core and duo core.
The single core Centrino is also known as Pentium M. On 1 to 2
years old laptops, you will still see this kind of
specifications:
Intel Centrino Pentium M 1.X to 2.X GHz OR Intel Pentium M 7XX
Processor
The newer types of Centrino, are all duo core.
Specifications look like this: Intel Centrino Duo Core 1.XX to 2.XX
GHz or Intel Core 2 Duo 1.XX to 2.XX GHz
Most companies now offer Duo Core laptops, so it no longer says
Pentium M. If you see a Pentium M, it is most likely a single core
chip.
