I have read reviews on where the P5N-E and the P5N32-E (SLI's of course) are very similar in performance. You get a little more with the P5N32-E, but if you're looking for performance on a budget, the P5N-E should suit you fine. That's what I'm running and very happy with it's performance. I've seen a review on TechSpot that shows very little difference in performance between the two boards.