Loc: Florida, USA
I would double the ram and make sure the video card can support Open CL.
You have to remember nVidia makes the GPU and other companies like EVGA make the card. Other words they can be very different from the core clock, video memory to the BIOS coding. You can have two of the exact same cards from two different vendors and each one will work slightly different, one might be fully compatible but the other can not support Quartz Extreme or no DVI support all because it uses a different hardware string.
Some people have been able to modify the KEXT files to use the proper string but you will only be able to go so far.
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