SOURCE: Diamond Multimedia

August 07, 2008 12:40 ET

Diamond Launches the XOC™ -- ATI Radeon HD 4870 Overclocked Graphics Card

CHATSWORTH, CA--(Marketwire - August 7, 2008) - Diamond Multimedia (, a leading manufacturer of PC graphics cards, sound cards and communications products, launched today the first XOC™ ATI Radeon™ HD 4870 graphics card. This extreme overclocked card offers the ultimate in gaming performance for the latest DirectX™ 10.1 games. Enjoy fast frame refresh rates and true-to-life imagery like never before. This version has been fully optimized to outperform the reference boards.

The Diamond Radeon HD 4870 XOC is a dual slot card, PCIE 2.0, with 512MB of DDR5 memory and a clock speed of 800 MHz. The memory speed is 1100 MHz, designed with 800 stream processors. The card comes adorned with a uniquely designed fan cooler sticker, affectionately referred to as "boneyard."

The HD 4870 provides plug-and-play ATI CrossFireX™ upgradeability with up to quad-GPU support. Making it fast and efficient is ATI's Power Play and 55nm processing technology.

The Radeon HD 4000 series of GPUs delivers their superlative visual performance with a powerful new TeraScale engine that delivers high resolutions and fast frame rates. Unified Video Decoder 2 frees up the CPU for other tasks, especially the most processing-intensive content, including VC-1, H.264 and now MPEG-2. Take full advantage of Blu-ray functionality with dual-stream, picture in picture (PIP) capabilities. As with their predecessors, the Radeon 4000 series provides graphics support for the latest Microsoft® DirectX® 10.1 games and realistic 3D graphics and shading effects. Experience the best of Windows Vista and take advantage of the Windows Aero™ graphical interface.

Additionally, Radeon 4000 series products will include a scratch and win card for the chance to win one of 8 custom painted gaming rigs. The scratch off games will only be available from participating online retailers:,,,, and

All Diamond video cards carry the Diamond guarantee of quality assurance. Unlike many cards that are simply first to market, Diamond carefully tests and retests every new model for its ratio of performance to reliability. Diamond is legendary in the PC video card business for its less than 1 percent return rate versus an industry average of approximately 10 percent. Diamond cards use superior connectors, cables and components, as well as undergo more thorough testing for heat susceptibility and durability.


Diamond Multimedia's ATI Radeon HD 4870 XOC will be available at Amazon, CompUSA, Newegg, NCIX, Tiger Direct and ZipZoomFly. Learn more at

About Diamond Multimedia

Diamond provides the absolute best quality in advanced graphics, digital television, communications and sound hardware solutions for home and business users, enabling users to create, access and experience compelling new media content from their desktops. Diamond products stand for performance, quality and value.

For the past two decades, Diamond Multimedia has been widely recognized as a pioneer in the graphics, sound and communications industries and as a key player in launching the multimedia revolution. Diamond is a new type of multimedia company that brings all of the differing technologies together under one brand. Diamond Multimedia is partnered with some of the top technology companies, including AMD, as an ATI graphics provider.

Diamond products are available to the public throughout North America through retailers, resellers and systems integrators, as well as, top technology product distributors. Corporate headquarters are located in Chatsworth, California.

Contact Information

  • Press Contacts:

    Lisa Legnante
    Senior Marketing Manager
    Diamond Multimedia
    Email Contact
    818.534.1414 x117