ATI Radeon X1900 XT

The ATI Radeon X1900 XT was a high-end graphics card released by Apple on August 7, 2006 as a build-to-order option for the 2006 1st-generation Mac Pro. It is based on a GPU chipset developed by ATI Technologies (which was in the process of being acquired by AMD).About graphics-card compatibility between Mac Pro models, Apple Support. 2022-03-14. It was also sold separately.
==Description==
The Radeon X1900 XT is based on ATI's R580 XT performance graphics chip that was fabricated by TSMC on the 90 nm process. The GPU clock speed was 625 MHz, which could be boosted to 725 MHz. Unlike base consumer models, Apple offered a version that contained 512 MB of GDDR3 video RAM. The card features two dual-link DVI ports capable of driving up to two two digital displays at 2560 x 1600 pixels, such as the 30-inch Apple Cinema HD Display. With DVI to VGA Adapters, up to two analog (VGA) displays could be supported at up to 2048 x 1536 pixels. It took up the space of a double-wide PCIe 1.0 x16 slot, and required an auxiliary power cable.ATI Radeon X1900 XT, TechPowerUp GPU Database. Accessed 2022-05-11.ATI Radeon X1900XT Mac Pro Graphics Card, Apple Cards. 2022-05-12.
The character printed on the GPU enclosure is named "Ruby", produced by RhinoFX to demonstrate and promote ATI's graphics capabilities.ATI Radeon X1900 XT 256 MB Review: The Card by by W1zzard, TechPowerUp. 2006-10-23.ATI’s Radeon X800 graphics processors by Scott Wasson. The Tech Report. 2004-05-04.
===Support===
The Radeon X1900 XT required a minimum of Mac OS X 10.4.7 (Tiger), which was pre-installed on the 2006 Mac Pro. A separate G5 Mac Edition was made available for the Power Mac G5 in November 2006.ATI reveals Radeon X1900 card for Power Mac G5 by Peter Cohen, Macworld. 2006-11-01.
===Issues===
In September 2010, Apple announced an exchange program for a run of cards that may have had issues with distorted video being displayed. Cards eligible for exchange had serial numbers containing "V6Z" within the last 4 digits.Mac Pro: ATI X1900 XT video card with distorted video, Apple Support. 2010-09-30. Archived 2010-10-01.ATI X1900 XT Video Card Problems (Finally) Addressed By Apple. by M. Chris Stevens, Rocket Yard. 2010-09-27. The card could run through OS X 10.11.6 (El Capitan), though it was noted to be more stable while under OS X 10.10.5 (Yosemite).
==Gallery==
ATI Radeon X1900 XT PCIe extender.jpg|A Radeon X1900 XT with extender to fit a full-length PCIe slot in the Mac Pro
==References==
==External links==
*ATI Radeon X1900 XT Graphics Upgrade Kit for Mac Pro at Apple (archived 2007-02-04, 2006-08-23)
**ATI Radeon X1900 XT Firmware Update at Apple Support (2007-10-16)
*ATI Radeon X1900 XT at AMD (archived 2007-04-30)
* at Wikipedia
Category:AMD products
Category:2006 introductions