AMD launched the first teraFLOPS graphics card, the ATI Radeon HD 4850, and the first graphics card featuring ultra high bandwidth GDDR5 memory, the ATI Radeon HD 4870. ATI Radeon™ HD 4800 Series GPUs bring the power of graphics ‘supercomputing’ to gamers, setting a new standard for visual computing. Redefine the way you play and take HD gaming to the extreme with best-in-class performance. With one teraFLOPS on tap, the TeraScale graphics engine delivers an immersive, cinematic gaming experience. Add this graphics card to your PC and watch Blu-ray movies and play HD content with incredible visual fidelity or take your experience to another level with new multimedia capabilities.
"The ATI Radeon 4800 series represents a 2X performance jump over the ATI Radeon HD 3800 GPU, the biggest generational increase since the game-changing launch of the Radeon 9700 in 2002," said Rick Bergman, senior vice president and general manager, Graphics Products Group, AMD. "AMD made a strategic decision to focus on GPU designs that maximized our efficiency and allowed us to provide enthusiasts, performance and mainstream users with the most compelling value proposition at every price point. The ATI Radeon 4800 series sets a new industry standard in key metrics such as performance-per-watt, performance-per-mm2 of chip die size, and performance-per-dollar."
The ATI Radeon HD 4870, available with a suggested retail price of USD$299, represents an unprecedented 1.2 teraFLOPS of visual compute power. It features a stock GPU core clock speed of 750 MHz, 512 MB of GDDR5 memory rated at 3.6 gigabits/second, and comes in a dual-slot PCI Express 2.0 configuration with a maximum board power of 160 watts.
The ATI Radeon HD 4850 immediately available with a retail price of USD$199, received an enthusiastic welcome from global graphics reviewers. The ATI Radeon HD 4850 is the first teraFLOPS graphics chip, with 800 stream processing cores (identical to the ATI Radeon HD 4870), a stock GPU core clock speed of 625 MHz, 512 MB of GDDR3 memory rated at 2 gigabits/second, and comes in a single-slot PCI Express 2.0 configuration with a maximum board power of 110 watts.
Building versions of the ATI Radeon HD 4800 series are VisionTek, ASUS, PowerColor, MSI, GIGABYTE, GECUBE, Force3D, SAPPHIRE Technology, Diamond Multimedia, Club 3D, HIS (Hightech Information Systems) and Palit Multimedia.
The ATI Radeon HD 4800 series will allow users to experience HD digital content while it can also help improve the definition and image quality of any visual media including standard DVDs and videos. The new series also includes new HD media capabilities, like picture-in-picture HD viewing, fast format conversion of your favorite media, and support for the latest HD audio technologies like 7.1 surround sound.
ATI PowerPlay technology intelligently adjusts requirements to ensure performance is there when you need it most while throttling back for lesser user demands.
With the ATI Radeon HD 3870, AMD set a new performance per watt standard, which has been broken by the ATI Radeon HD 4800 series. Compared to the ATI Radeon HD 3870 series GPU, the ATI Radeon HD 4800 series delivers twice the performance while drawing only 20 percent more power.
Below you can see a comparison between AMD's HD 3800 and the new HD 4800 series of graphics cards:
| | ATI radeon HD 3800 | ATI radeon HD 4800 | Difference |
| Process | 55nm | 55nm | no |
| Die size | 190 mm2 | 256 mm2 | 1.35x |
| Transistors | 666M | 956M | 1.4x |
| 4x AA Fillrate | 8 | 16 | 2x |
| Z/Stencil | 32 | 64 | 2x |
| Texture | 16 | 40 | 2.5x |
| Shader | 320 | 800 | 2.5x |
| Bandwidth | 72 GB/sec | 115.2 GB/sec | 1.6x |
ATI Radeon HD 4800 Series – Key Features
- TeraScale Graphics Engine - The new TeraScale graphics engine 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 systems.
- Advanced Memory - GDDR5 memory provides twice the bandwidth per pin of GDDR3.
- 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 are.
- PCI Express 2.0 - Support for PCI Express 2.0 will prepare you for bandwidth-hungry games and 3D applications.
- 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.
- Accelerated Video Transcoding (AVT) - AVT allows you to convert videos to H.264 and MPEG-2 formats up to 19x faster than when using a just CPU.3 Full 1080p files can be converted to H.264 and MPEG-2 up to 1.8x faster than real-time.
- Upscale Beyond 1080p - Watch the hottest Blu-ray movies or other HD content at full 1080p display resolution and beyond.
- 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 4800 Series graphics cards deliver high performance when needed and conserve power when the demand on the graphics processor is low.
- More Performance Per Watt - ATI Radeon HD 4800 series delivers up to 2x the performance per watt of AMD’s previous generation GPUs.
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