This article applies only to video cards that originally shipped with a specified Mac Pro or were offered as an upgrade kit by Apple. Similar cards that were not provided by Apple may have compatibility issues and you should work with the vendor of that card to confirm compatibility.

The Nvidia GeForce 8800 GT card that our new Mac Pro came with is a $200 option; it comes with 512MB of graphics memory—twice the graphics memory as the stock ATI card. Apple nVidia GeForce 8800GT 512MB 2006 2007 Mac Pro 1,1 2,1 PCIe Graphic Card. GeForce 200 Series: GeForce GTX 285. GeForce 100 Series: GeForce GT 120. GeForce 8 Series: GeForce 8800 GT. Quadro Series: Quadro K5000 for Mac, Quadro 4000 for Mac. Quadro FX Series: Quadro FX 4800, Quadro FX 5600. The award-winning NVIDIA GeForce 8800 GT features 112 high-powered processing cores and supports dual 30-inch Apple Cinema HD displays. Compatible with any Intel-based Mac Pro, the GeForce 8800 GT includes NVIDIA’s video processing technology which offloads H.264 decode enabling silky smooth playback of high-definition video.

If you are trying this on a latest Mac OS X Mavericks, command line tools come with the Xcode 5.xSo make sure you have installed & updated Xcode to latestafter which make sure Xcode command line tools is pointed correctly using this command xcode-select -pWhich might show some path like/Applications/Xcode.app/Contents/DeveloperChange the path to correct path using the switch command xcode-select -switch /Library/Developer/CommandLineTools/this should help you set it to correct path, after which you can use the same above command -p to check if it is set correctly. I just got the same error after I upgraded to 10.14 Mojave and had to reinstall command line tools (I don't use the full Xcode IDE and wanted command line tools a la carte).My xcode-select -p path was right, per, so that wasn't the issue.I also ran sudo softwareupdate -clear-catalog per and that reset to Apple Production, but did not make a difference.What worked was to visit.From there I was able to download a.dmg file that had a GUI installer wizard for command line tools:)I installed that, then I restarted terminal and everything was back to normal. Command line tools for mac os x.

Mac Pro (2019)

Learn more about cards you can install in Mac Pro (2019) and how to install PCIe cards in your Mac Pro (2019).

Mac Pro (Late 2013)

Dual AMD FirePro D300
Dual AMD FirePro D500
Dual AMD FirePro D700

Nvidia Geforce 8800 Gt Mac Pro 2008

Mac Pro (Mid 2010) and Mac Pro (Mid 2012)

ATI Radeon HD 5770
ATI Radeon HD 5870
Learn about graphics cards supported in macOS 10.14 Mojave on Mac Pro (2010) and Mac Pro (Mid 2012).

Mac Pro (Early 2009)

Nvidia Geforce 8800 Gt For Mac Pro

NVIDIA GeForce GT 120
ATI Radeon HD 4870
ATI Radeon HD 5870, offered as an upgrade kit
The Radeon HD 5870 card requires Mac OS X 10.6.4 or later and the use of both auxiliary power connections.

Mac Pro (Early 2008)

ATI Radeon HD 2600 XT
NVIDIA GeForce 8800 GT (part number 630-9191 or 630-9897)*
NVIDIA Quadro FX 5600
ATI Radeon HD 4870, offered as an upgrade kit
The Radeon HD 4870 card requires Mac OS X 10.5.7 or later.

Mac Pro (Original)

NVIDIA GeForce 7300 GT
ATI Radeon X1900 XT
NVIDIA Quadro FX 4500 (part number 630-7532 or 630-7895)*
NVIDIA GeForce 8800 GT (part number 630-9492), offered as an upgrade kit.*
The NVIDIA GeForce 8800 GT card requires Mac OS X 10.5.2 or later with the Leopard Graphics Update 1.0 or the computer may not start up properly.

Nvidia Geforce 8800 Gt 512mb Mac Pro

* To identify a graphics card part number, check the label on the back of the card. Bias peak for mac.