Do you mean 1 GB of RAM?
If so, then yes, you probably can. Especially if you get a Venice core. I have a Winchester core and it is an AMD Athlon 64 3000+ and I hit 2.3 GHz no problem. My RAM is around 210 MHz with the FSB at about 250 or a little bit higher. You should be able to get that speed at least. It rates better on the 3DMark tests than it did before, so that is why I was wondering what was meant by a LOSS in performance.