Buy 3MB cache or 4MB cache?

[PenrynMBP]

I am doing a lot of video editing/encoding/rendering. So should I get the previous Santa Rosa that has 4MB Cache? Or should I buy the new Penryn machine that has only 3MB Cache? Thanks

 

[Eidorian]

Get the Penryn based Macbook Pro. The gains that are possible with SSE4.1 are greater then with 4 MB of cache.

 

[Arjy]

the 3mb is discretionary. Its made up for by the fact that its a penryn.