ATI Mobility Radeon™ HD 4850 / 4870 Overview 

Redefine the Way you GAME! - Best Performance for Enthusiast Class Graphics

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.

Features & Benefits
  • The 800 stream processors with GDDR5 or GDDR3 memory propel you deep into your gameplay with seamless frame rates at high resolutions3.
  • 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.
  • Upscale to nearly twice the display resolution of HD content or watch standard definition video in near-HD quality with enhanced DVD up-scaling4,5,6
  • Enhanced interactive Blu-ray functionality with dual-stream, picture in picture (PIP) playback capabilities allow you to enjoy bonus features with director commentaries for an immersive visual experience2,7,8
  • Dual DisplayPort™ and HDMI with 7.1 surround sound ensures you can take advantage of the latest display technology with theater-class sound.

Product Information

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. Blu-ray drive and 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.

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.).

Support and Drivers
Get the latest support information and graphics drivers.