ATI 100-435317 Radeon X800 XT Mac Edition for G5 256MB AGP Video Card 256 MB GDDR3 memory graphics card with AGP 8x support and 3Dc technology 16 extreme parallel pixel pipelines, and six parallel vertex processing pipelines deliver twice the performance of the acclaimed Radeon Dual digital display connections capable of powering any combination of digital flat panel or analog displays simultaneously Comes with ATI's hassle-free, manufacturer's three-year limited warranty Requires a Power Mac 5, 512 MB of memory, a CD-ROM drive for the installation software, and supports Mac OS X 10.3.6 or higher