I am wondering what is the best card for my dell optiplex 745 desktop model. I have the riser and currently a pny verto 8600 gt in it. The problem is the size of the card. I tried one time to put in a xfx Radeon 7750 hd and it was too long with the riser.
This looks like it would fit hd 6670
http://www.amazon.com/XFX-Radeon-HD6670-PCI-Express-HD667XZHF3/dp/B004Z5GRW6/ref=sr_1_3?ie=UTF8&qid=1369219176&sr=8-3&keywords=6670hd
Looking at the pic this HD 7750 might fit
http://www.amazon.com/HIS-H775F1GD-Displayport-Express-Graphics/dp/B007827196/ref=sr_1_3?s=electronics&ie=UTF8&qid=1369219273&sr=1-3&keywords=7750
This looks like it would fit hd 6670
http://www.amazon.com/XFX-Radeon-HD6670-PCI-Express-HD667XZHF3/dp/B004Z5GRW6/ref=sr_1_3?ie=UTF8&qid=1369219176&sr=8-3&keywords=6670hd
Looking at the pic this HD 7750 might fit
http://www.amazon.com/HIS-H775F1GD-Displayport-Express-Graphics/dp/B007827196/ref=sr_1_3?s=electronics&ie=UTF8&qid=1369219273&sr=1-3&keywords=7750