Glasses..........
The 9500 none pro was/and can still be found on the 9700 series PCB BUT..........
The ram layout on the 9500/9700 PCB is in a "L" shape (2 rams above gpu 2 lower on side of gpu
Now, the revised 9500 PCB (ATI Sapphire etc the rams are 4x inline eg - - - - these are all around and can only be clocked to 9500 pro specs)
Ati revised the 9500 PCB as word got out that it indeed could be brought up to 9770 spec BUT this was also the luck of the draw, Some GPU's were slightley flawed (especially early runs) so they were put onto 9500/9500 pro pcb's, Some guys were lucky and got 9700 specs from "L" shaped 9500 pcb layouts
I will post a few links for ya asap so you can see diff pcb layouts
L shaped 9700 pcb
http://reviews.designtechnica.com/guide13.htmlSkim down here you will easily see L shaped against inline ram
http://www.digit-life.com/articles2/radeon/r9500-9700-dx9-p1.html#p2Luck of draw i mean getting the pipes to fully run without artifacts or not even getting to open all of em as on a 9700 etc