ATI Mobility Radeon™ HD 4850 / HD 4870 Graphics - Overview

ATI Mobility Radeon™ HD 4850 / HD 4870 Product Features
ATI Mobility Radeon™ HD 4800 Series GPUs bring the power of desktop graphics ‘supercomputing’ to mobile gamers, setting a new standard for visual computing on-the-go. Redefine the way you play and take HD gaming to the extreme with best-in-class performance and performance/watt. The ATI Mobility Radeon™ HD 4800 series delivers an immersive, cinematic gaming experience and with ATI CrossFireX™ multi-GPU technology experience the first graphics processor for notebooks that delivers one teraFLOPs of sheer power¹. Watch Blu-ray movies and play HD content with incredible visual fidelity². Do it all with break-through energy efficiency with ATI PowerPlay™ technology for long battery life that doesn’t compromise on performance.

Redefine HD Gaming
With more than twice the processing power of previous generation AMD discrete graphics cards³, ATI Mobility Radeon™ HD 4800 Series graphics deliver a cinematic gaming experience and unprecedented performance. ATI CrossFireX™ technology multi-GPU capabilities deliver the power of one teraFLOPs¹. The 800 stream processors with GDDR5 or GDDR3 memory propel you deep into your gameplay with seamless frame rates at high resolutions. Enhanced anti-aliasing (AA) and anisotropic filtering (AF) create striking graphics with unparalleled realism so you can max out the settings of the most demanding next-generation games or revitalize your favorite titles⁴. Play today while preparing for tomorrow with support for DirectX® 10.1 and ATI CrossFireX™ technology turning your notebook into a gaming powerhouse with astonishing performance at all resolutions.

Go Beyond HD Video
With ATI Mobility Radeon™ HD 4800 Series graphics watch the latest HD movies play with incredible fidelity² and low CPU utilization – upscale to nearly twice the display resolution of HD content^4,5 or watch standard definition video in near-HD quality with enhanced DVD up-scaling⁶. Take full advantage of Blu-ray functionality with dual-stream, picture in picture (PIP) playback capabilities^7,8. With ATI Avivo™ HD video* has never looked better with the advanced video processing technologies delivering brilliant picture clarity. ATI Mobility Radeon™ HD 4800 offers support for the latest audio visual interconnects. Dual DisplayPort™ and HDMI with 7.1 surround sound ensures you can take advantage of the latest display technology.

Break-through Energy Efficiency
Like their predecessors, the ATI Mobility Radeon™ HD 4800 Series graphics processors offer optimal performance and break-through energy efficiency with platform-independent intelligent power management.  With the intense focus on power efficiency these graphics processors deliver best-in-class battery life.   The enhanced ATI PowerPlay™ activity-based power management technology intuitively conserves energy at idle or when demand is low. The GPU automatically adjusts between low to high states delivering the power needed to blaze through the most intense games while dynamically conserving energy at idle or when demand is low - an optimal solution for great performance and long battery life. 

ATI Mobility Radeon™ HD 4800 Series Graphics

ATI Mobility Radeon™ HD 4870 Graphics

ATI Mobility Radeon™ HD 4860 Graphics

ATI Mobility Radeon™ HD 4850 Graphics

ATI Mobility Radeon™ HD 4830 Graphics

Additional Technologies

ATI XGP™ Technology

ATI CrossFireX™ Technology

¹ Requires dual ATI Mobility Radeon™ HD 4870 or ATI Mobility Radeon™ HD 4850 graphics processors with ATI CrossFireX™ technology to break the one teraflop barrier for single precision performance.
² HD capable monitor required.
³ The ATI Mobility Radeon™ HD 4870 and ATI Mobility Radeon™ HD 4850 deliver 800 stream processing units compared with the ATI Mobility Radeon™ HD 3800 series which delivers 320 stream processing units.
⁴ Subject to available monitor resolution.
⁵ The ATI Mobility 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 in AC mode only.
⁶ DVD playback requires a DVD drive.
⁷ This may vary depending on your system configuration and video formats.
⁸ Picture-in-Picture displayed in SD. HD and SD decode is done on the ATI Mobility Radeon™ HD 4800 series graphics processors.
*ATI Avivo™ HD is a technology platform that includes a broad set of capabilities offered by certain ATI Mobility Radeon™ HD GPUs. Not all products have all features and full enablement of some ATI Avivo™ HD capabilities may require complementary products.

Performance, technologies and features listed above can vary with specific notebook implementations.
Please consult with Notebook vendor for a complete list of supported features.

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.).