I think the i7 620m acquits itself quite well performance wise even in comparison to the qm quad cores.
Not to mention the i5 and i7 in terms of battery life heat etc is far superior.
http://www.notebookcheck.net/Mobile-Processors-Benchmarklist.2436.0.html
Not to mention the i5 and i7 in terms of battery life heat etc is far superior.
http://www.notebookcheck.net/Mobile-Processors-Benchmarklist.2436.0.html