Which cores of my Core 2 Quad share cache?

[TurtleCrusher]

I'm planning on doing batch encoding soon of two completely separate programs and purposes, and I'd like each of the two encoding programs to use two cores each. Since my Q8200 have 4MB L2 Cache (2x2mb), I'd like to keep each program to be able to share the L2 cache. How do I know which cores share cache?

Is it:

0,1+2,3?
0,2+1,3?
0,3+1,2?

This is probably a noob question.

 

[Dahak]

From what I can find it would be 0,1 and core 2,3 that share. Your chip is based on the yorkfield die and what i found at here http://www.anandtech.com/show/2362/2 it shows that its 2 separate dies on the chip