Macbook Pro i7 2.66Ghz cores/threads?

Hi everyone.

I was looking at the specs of the cpu of my Macbook Pro. I have the i7 620M.

http://ark.intel.com/ProductCollection.aspx?familyID=43402&MarketSegment=MBL

You can look up the specs on the Intel page.

But what is actually the difference between the cores and threads?

It says my cpu has 2 cores, so 2 logical cpu's on one socket. But what are the 4 threads used for?

Message was edited by: JoelCraenhals