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512-bit Ring Bus Memory Controller • Programmable intelligent arbitration logic. • New fully associative texture, color, and Z/stencil cache designs. • Hierarchal Z-buffer with Early Z test. • Lossless Z Compression (up to 48.1) • Fast Z-Buffer Clear. • Z Cache optimized for real-time shadow rendering. • Optimized for performance at high display resolutions, including widescreen HDTV resolutions. Ultra-Threaded Shader Engine • Support for Microsoft ® DirectX® 9.0 Shader Model 3.0 programmable vertex and pixel shaders in hardware. • Full speed 128-bit floating point processing. • Up to 512 simultaneous pixel threads. • Dedicated branch execution units for high performance dynamic branching and flow control. • Dedicated texture address units for improved efficiency. • High resolution texture support (up to 4k x 4k). • Up to 1,536 instructions per rendering pass. • 3Dc+ texture compression • High quality 4:1 compression for normal maps and luminance maps. • Works with any single-channel or two-channel data format. • Multiple Render Target (MRT) support. Radeon® X1950 XTX Features 3 • Render-to-vertex buffer support. Radeon® X1950 XTX Features 3 • Render-to-vertex buffer support. • Complete feature set also supported in OpenGL® 2.0 High Dynamic Range (HDR) Rendering • 64-bit floating point HDR supported throughout the pipeline • Includes support for blending and multi-sample anti-aliasing. • High precision 10:10:10:2 integer format support. • Includes support for blending and multi-sample anti-aliasing. • 2x/4x/6x Anti-Aliasing modes • Sparse multi-sample algorithm with gamma correction, programmable sample patterns, and centroid sampling. • New Adaptive Anti-Aliasing modes. • Temporal Anti-Aliasing mode. • Lossless Color Compression (up to 6:1) at all resolutions, including widescreen HDTV resolutions. • 2x/4x/8x/16x Anisotropic Filtering modes • Up to 128-tap texture filtering. • Adaptive algorithm with performance and quality options. 4 Before You Begin System Requirements 4 Before You Begin System Requirements Hardware • Intel® Pentium® 4 or AMD Athlon®. • 512MB of system memory; 1GB or more for best performance. • Optical drive for installation software (CD-ROM or DVD-ROM drive). • Specialized PCI Express® 550 watt or greater power supply recommended. Consult your computer system manual to ensure the power supply is designed to accommodate a high-end graphics card with a peak dissipation above 75 watts. Operating • Windows® XP with Service Pack 2 (SP2). System • Windows® XP Professional x64 Edition. • Windows® 2000. •Windows® Vista. Monitor • High-resolution MultiSync or multi-frequency monitors or any other type of VGA monitor. • Digital flat-panel (DFP) displays or digital CRT display. CrossFire™ If you are planning on using this graphics card as part of a Compatibility CrossFire™ system, the following is required: • A CrossFire™ certified motherboard with two (2) PCI Express® X16 slots and correct PCIe™ chipset driver. (See ati.com/crossfire for a list of CrossFire™ certified motherboards.) • a CrossFire™ Edition graphics card from the same product series that works as the Master graphics card. More information on the requirements for each of these components can be found within the CrossFire™ FAQ. Before You Begin Before you begin installing your new graphics card, please do the following. Before You Begin 5 Record Your Serial and Part Numbers Before You Begin 5 Record Your Serial and Part Numbers The serial number and 102 part number printed on the graphics card are required for registration. They are located on a sticker on the back of the card. • Serial number (S/N) • 102 part number (P/N) Write the numbers, shown in bold above, down before installing your new ATI product. Uninstall Previous Graphics Card Drivers To ensure the successful installation of your new Radeon® X1950 XTX card, you must uninstall the drivers for the existing graphics card before removing it from your computer. To uninstall previous drivers With your current graphics card still in your computer: 1 Close all applications that are currently running. 2 Navigate to the Control Panel and select Add/Remove Programs. 3 Select your current graphics card drivers and select Add/Remove. The wizard will help you remove your current display drivers. Note: If the previously installed graphics card has any additional software installed, it should also be removed at this point. 4 Turn off your system and remove the old graphics card. 6 Before You Begin 6 Before You Begin 7 CHAPTER 2: 7 CHAPTER 2: Installing Hardware This chapter will guide you through the physical installation of your new Radeon graphics card. • Consult your system builder or OEM to ensure that your system has an adequate power supply. A PCI Express® compatible system has a specialized 12V graphics card power connector. A 450 watt or greater power supply is recommended. Consult your computer system manual to ensure the power supply is designed to accommodate a high-end graph...