Depends. If it's value RAM with high latencies, you don't plan on OC'ing much, etc then yes, get 1 gig. However, I have 512MB of 2-2-2-5, lowest latencies, at a fsb of 250, and it performs better than the gig of value ram I had before. I'd try to get 1GB, though, to future proof it as much as possible.