So you can software upgrade the R9500 to either a 9500Pro or a 9700 (depending on the amount of installed memory), and then overclock to get a faster 9500Pro or a 9700Pro.
I assume when you say software upgrade you mean card BIOS, right? Well, that's really nothing new, most graphics cards can be overclocked. I'm overclocking my GeForce2 Ti to be faster then a GeForce2 Ultra using a little tool called PowerStrip (for Windows of course). I haven't tried any BIOS updates but I think the only difference between those two cards is the GPU & ram speed.
- Mike