I have a friend who has an Early 2008 Mac Pro (3,1) and his stock video card just died on it. He's got a few MacBook Pros and he's apt to replace his Mac Pro in a couple years. For now, he's looking for a video card to throw into it that is better and cheaper than what Apple sold stock (up to and including the Radeon HD 5870 that Apple had on high-end 2010/2012 Mac Pros). I figure his best Aftermarket options are the Saphire Radeon HD 7950 Mac Edition and the EVGA GeForce GTX 680 Mac Edition. What might his options for PC video cards that can either have their firmware flashed or just work (either out of the box or with KEXT modifications) be? He has a preference for NVIDIA, but it's, by no means, a must. I've been following the Mac Pro PC graphics card modding thread as well as other stuff here and there. Figured it'd be easier to ask here for more up to date options and to know what some favorites are. EDIT: It looks like NVIDIA cards, provided his version of OS X has the stock drivers will just work out of the box, albeit with no boot screen (unless the card's firmware is flashed). Is there a recent NVIDIA card of choice that you guys like more than others that I can flash? The card itself doesn't need to be super-mega powerful, a GTX 650 or a low-mid-range GTX 7xx series would definitely suffice here.