Mac Pro video card suggestions
I recently bought a Mac Pro: 2 x 2.66 Ghz Dual-Core Intel Xeon, 8 Gb RAM, w/ 4 HDDs = 3 x 1Tb + a 500Gb, it also came with a 23" Cinema Display and the new wireless keyboard and Magic Mouse: all for $500. (Guy needed money for child support)
Anyways, the work I do requires me to have many tabs open in FF and I've noticed a slight lagg when compared to my 15" Mid 2009 MBP (2.66Ghz Intel Core 2 Duo w/ 8Gb of RAM, NVIDIA GeForce 9600M GT graphics processor; and NVIDIA GeForce 9400M graphics processor with 256MB of DDR3 SDRAM shared with main memory (2 graphic processors).
The current card on the Mac Pro is NVIDIA GeForce 7300 GT
I'm not sure if the difference is because of RAM, the cards or a combination of both, but I would ike to start out with changing the graphics card on the Mac Pro first. I would like some suggestions on a new card that will not break the bank. I am not doing any high end video editing nor any gaming. I will be using Photoshop and other similar packages in the near future, but not at a professional level.
Any suggestion is greatly appreciated. Thank you in advance and please let me know if you need any additional information.
One more thing:
Mac Pro is running OS X 10.7.5
MBP is running OS X Mountain Lion 10.8.2
Mac Pro, Mac OS X (10.7.5)