• Overview
• GPU Specs
• System Requirements

ATI Radeon™ HD 4890 – Overview

Relentlessly Pursuing Performance
Tear through the latest games with seamless frame rates and go beyond HD¹ with the power of the ATI Radeon™ HD 4890 graphics processing unit (GPU). Building on the strength of the ATI Radeon™ 4800 series award-winning architecture, this GPU stands out from the rest with massive graphics processing muscle. Take ultimate control over your game and crank it up with scalable performance. Go ahead, max out the settings and put the ATI Radeon HD 4890 through its paces.

• With 800 stream processors, the ATI Radeon HD 4890 has the brute strength needed to tackle the latest 3D games.
• Unparalleled anti-aliasing (AA) and anisotropic filtering deliver eye-popping graphics with striking realism.
• Equipped with the fastest, most advanced GDDR5 memory technology, this GPU supports higher data rates which translates directly into superior performance and maximum memory bandwidth.
• Get right in the action and experience cinematic gaming at extreme HD resolutions1 with mind-blowing performance in the latest DirextX®10.1 games.
• Personalize your experience with state of the art overclocking capabilities, advanced system monitoring and amazing control. Tune your system in real-time and push the performance envelope with the ATI OverDrive™ utility².
• Take your game to new heights with ATI CrossFireX™ technology and enjoy superior scalability with up to quad GPU support³.
• Tap into the massive parallel processing power of your ATI Radeon HD 4890 GPU with ATI Stream technology and tackle demanding tasks like video transcoding with incredible speed.

ATI Radeon HD 4890 Series – Key Features

• TeraScale Graphics Engine - The TeraScale graphics engine in the ATI Radeon™ HD 4890 features over one teraFLOPS, nearly one billion transistors and 800 stream processors so you can enjoy the high resolutions and fast frame rates previously only available with dual-card systems⁴.
• Advanced Memory - GDDR5 provides twice the data per pin of GDDR3 memory at the same clock speeds.
• Enhanced Anti-Aliasing & Anisotropic Filtering - High performance anisotropic filtering and 24x custom filter anti-aliasing (CFAA) smooth jagged edges and create true-to-life graphics, for everything from grass to facial features.
• DirectX® 10.1 - Play today while preparing for tomorrow with state-of-the-art DirectX 10.1 graphics capabilities.
• ATI CrossFireX™ Technology - ATI CrossFireX™ technology with up to quad GPU support offers superior scalability so your system is ready to level up when you are³.
• PCI Express 2.0 - Support for PCI Express 2.0 will prepare you for bandwidth-hungry games and 3D applications.
• Power to Spare - This GPU has the brute processing power needed for physics, artificial intelligence, stream computing and ray tracing calculations.
• Unified Video Decoder 2 (UVD 2) - UVD 2 frees up your CPU for other tasks so you get The Ultimate Visual Experience™ for even the most processing-intensive content, including VC-1, H.264 and now MPEG-2. Also, take full advantage of Blu-ray functionality with dual-stream, picture in picture (PIP) capabilities^1,5.
• Accelerated Video Transcoding (AVT) - With ATI Stream technology, owners of ATI Radeon™ HD 4800 series graphics cards can help accelerate the conversion of standard and HD video into multiple formats for use on differing consumer electronics devices. The ATI Video Converter, designed to enable GPU transcoding of HD video streams, is currently available.
• Upscale Beyond 1080p - Watch the hottest Blu-ray movies or other HD content at full 1080p display resolution and beyond⁶.
• Enhanced DVD Upscaling - Watch standard DVD movies in near high-definition quality with DVD upscaling. The GPU uses post processing algorithms to enhance standard and low resolution videos and movies on your HD display.
• Dynamic Contrast - Dynamic Contrast automatically adjusts the contrast and brightness during scenes to consistently deliver a crisp, vibrant picture.
• HDMI - Enjoy the latest audio technologies using HDMI with 7.1 digital surround sound support. Also, xvYCC support allows the user to enjoy a wider range of color when connected to a capable HDTV.
• Dynamic Power Management - ATI Radeon HD 4890 GPUs deliver high performance when needed and conserve power when the demand on the graphics processor is low.
• Energy Efficient Manufacturing Process - Third generation 55nm chip uses the industry’s most energy efficient manufacturing process.
  

1 HD capable monitor required
2 AMD’s product warranty does not cover damages caused by overclocking, even when overclocking is enabled via AMD software.
3 ATI CrossFireX™ technology requires an ATI CrossFireX Ready motherboard, an ATI CrossFireX™ Bridge Interconnect and may require a specialized power supply.
4 Compared to previous generation ATI Radeon™ graphics processors.
5 Blu-ray drive required
6 The ATI Radeon HD 4800 Series GPUs can upscale video display to 2560x1600 on dual-link monitors which is almost twice the display resolution of 1080p displays.

ATI Radeon™ HD graphics chips have numerous features integrated into the processor itself (e.g., HDCP, HDMI, etc.). Third parties manufacturing products based on, or incorporating ATI Radeon HD graphics chips, may choose to enable some or all of these features. If a particular feature is important to you, please inquire of the manufacturer if a particular product supports this feature. In addition, some features or technologies may require you to purchase additional components in order to make full use of them (e.g. a Blu-Ray or HD-DVD drive, HDCP-ready monitor, etc.).