处理器
| 处理器频率 |
750 MHz |
| 图形适配器随机存取存储器数字/模拟转换器 |
400 MHz |
| 流处理器 |
480 |
| 着色器时钟 |
850 MHz |
内存参数
| 图形适配器内存类型 |
GDDR5 |
| 内存带宽（最大） |
76.8 GB/s |
| 数据宽度 |
256 bit |
| 内存时钟速度 |
900 MHz |
端口 & 界面
| TV信号输入端口 |
Y |
| TV输出 |
Y |
| 接口类型 |
PCI Express 2.0 |
| DVI-I接口数量 |
2 |
性能
| DirectX版本 |
10.1 |
| OpenGL版本 |
2.0 |
| 最高着色模型版本 |
4.0 |
| Full HD |
Y |
| HDCP |
Y |
HD 4870 GPU, 512MB, GDDR3, PCI-E, ATI CrossFireX, Dual DL-DVI-I+HDTV
The ATI Radeon HD 4870 GPU brings 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. The new TeraScale graphics engine delivers an immersive, cinematic gaming experience. Add this GPU to your PC and watch Blu-ray movies and play HD content with incredible visual fidelity.* Do it all with break-through efficiency that doesn’t compromise performance.
- GDDR5 memory and 256-bit memory interface
- DirectX 10.1
- 24x custom filter anti-aliasing (CFAA) and high performance anisotropic filtering
- ATI CrossFireX multi-GPU support for highly scalable performance
- Use up to four discrete cards with an AMD 790FX based motherboard
- PCI Express 2.0 support
- Dynamic geometry acceleration
- Game physics processing capability
- ATI AvivoHD video and display technologyUnified Video Decoder 2 (UVD) for Blu-ray and HD VideoBuilt-in HDMI with 7.1 surround sound supportOn-chip HDCP
- ATI PowerPlay technology
Redefine HD Gaming
The ATI Radeon HD 4870 Series GPUs deliver a cinematic gaming experience with unprecedented performance. The powerful new TeraScale graphics will propel you deep into your gameplay with seamless frame rates and high resolutions. Enhanced anti-aliasing (AA) and anisotropic filtering create striking graphics with unparalleled realism so you can max out the settings of the most demanding next-generation games or revitalize your favorite titles. Play today while preparing for tomorrow with tessellation, support for DirectX 10.1 and scalable ATI CrossFireX technology.
TeraScale Graphics Engine
- The powerful new TeraScale graphics engine features deliver high resolutions and fast frame rates.
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.
Power to Spare
- This GPU has the brute processing power needed for physics, artificial intelligence, stream computing and ray tracing calculations.
Go Beyond HD Video
- Add an ATI Radeon HD 4870 Series GPU to your PC and watch the latest Blu-ray and HD movies play with incredible fidelity –upscale to nearly twice the display resolution of HD content. Take full advantage of Blu-ray functionality with dual-stream, picture in picture (PIP) capabilities. Sophisticated new features within ATI Avivo HD technology provide a truly responsive experience. Support for the latest audio visual interconnects ensures you can take advantage of the latest display technology.
Unified Video Decoder 2
- Unified Video Decoder 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.
Upscale Beyond 1080p
- Watch the hottest Blu-ray movies or other HD content at full 1080p display resolution and beyond.
On-chip HDCP
- On-chip HDCP (High-Bandwidth Digital Content Protection) makes life easier by allowing you to playback HDCP protected content.
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.
Break-throughEfficiency
- Like its predecessors, the ATI Radeon HD 4870 Series GPUs offer optimal performance and break-through efficiency with platform-independent intelligent power management. ATI PowerPlay delivers the power needed to blaze through even the most intense games while intuitively conserving energy at idle or when demand is low.
ATI PowerPlay Technology
- ATI PowerPlay Technology delivers high performance when needed and conserves power when the demand on the graphics processor is low.
Energy Efficient Manufacturing Process
- Second generation 55nm chip uses the industry’s most energy efficient manufacturing process.
