the 9600 GT doubles the 9500 GT in some benchies:P...most notably would be the COD4 benchies.
And you can find the 9600 GT about the same price as a 9500 GT.
The 9600 GT is a Mainstream card while the 9500 GT is a low-profile card.
Do you have a spedning limit? Because if you can egg out a little more cash you can find a 8800 GT which performs 15-20% better tha the 9600 GT.
You wuold have to OC a 9600 GT ALOT to come close to matching 1 8800 GT..its been done but I want to stress alot:)
the 9600 GT OCX (which is heavily OCed) performs the same or a little lower than 1 stock 8800 GT:|
Take a look here:http://www.guru3d.com/article/bfg-geforce-9600-gt-ocx-and-8800-gt-ocx-review/11