Best Buy Apple MB999ZM/A ATI Radeon HD 4870 Graphics Upgrade Kit. For incredible graphics processing power, the ATI Radeon HD 4870 with 512MB of GDDR5 memory is the ultimate choice for visual creative, scientific, and technical applications.
ATI Radeon HD 4870 includes two video ports: one Mini DisplayPort and one dual-link DVI port. This allows you to connect both the 24-inch Apple LED Cinema Display or another Mini DisplayPort-based display, and a DVI-based display such as the 30-inch Apple Cinema HD Displa... ... » Learn more about Buy Apple MB999ZM/A ATI Radeon HD 4870 Graphics Upgrade Kit.
Review for Apple MB999ZM/A ATI Radeon HD 4870 Graphics Upgrade Kit. I have the first Mac Pro Model 1,1, Woodcrest. There are limited high performance graphics cards available. I purchased this upgrade kit from Apple, and after getting the right adapter for the Mini Display port for a second monitor, installed it and it works great. Understand that this is not listed as a supported computer in the Apple documentation. I have only had it a short time, but it works great.... ... » Read more.
Buy Apple MB999ZM/A ATI Radeon HD 4870 Graphics Upgrade Kit » Find the lowest price. 
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