How to Buy a Graphics Card for Mac Pro (4 Steps)

Understand the default graphics card. Mac Pro's default graphics card is the Nvidia GeForce 7300 GT. This has 256 MB video RAM and 2 DVI connectors and is meant for normal business uses or moderately creative uses.
Acquaint yourself with the ATI Radeon X1900 XT. This one is for advanced gamers and creative professionals. It supports high-end graphics and 3-D modeling applications. Features include 512 MB video RAM and two dual-link DVI connectors that accommodate two 30-inch cinema HD monitors.
Study the features of the Nvidia Quadro 4500 FX card. This allows users to connect stereoscopic displays like 3-D glasses. Ideal for technical and scientific applications, it comes with 512 MB video RAM and two dual-link DVI connectors. This card isn't available as a separate upgrade, so order it while buying a Mac Pro.
Choose your graphics card and shop at any Apple retailer. Alternatively, purchase it from Apple's online store (see link below).
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