处理器
| CUDA |
N |
| 处理器频率 |
770 MHz |
| 图形适配器随机存取存储器数字/模拟转换器 |
400 MHz |
| 图形处理器系列 |
AMD |
内存参数
| 图形适配器内存类型 |
GDDR5 |
| 数据宽度 |
256 bit |
| 内存时钟速度 |
4000 MHz |
| 独立显卡适配器內存 |
1 GB |
性能
| DirectX版本 |
10.1 |
| OpenGL版本 |
3.1 |
| 最高着色模型版本 |
4.1 |
| PhysX |
N |
| 集成电视调谐器 |
N |
| Full HD |
Y |
| HDCP |
N |
端口 & 界面
| TV输出 |
Y |
| 接口类型 |
PCI Express 2.0 |
| 双头显卡 |
Y |
| HDMI端口数量 |
1 |
| VGA（D-SUB）端口数量 |
2 |
HD 4870 ICEQ 4 Turbo 1GB GDDR5, PCI-E 2.0, Direct X 10.1, 2560 x 1600
Redefine HD Gaming
The ATI Radeon HD 4800 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 CrossFireXTM technology.
ATI AvivoTM HD Technology
ATI AvivoTM HD is the advanced image and video processing and display technology found in ATI RadeonTM HD GPUs and ATI TheaterTM video capture processors. Specifically designed for HDTV and HD video enthusiasts, ATI Avivo HD provides brilliant colors, sharp images, smooth playback of Blu-rayTM* and HD video content, HDMI with built-in multi-channel digital audio, and on some GPUs, Unified Video Decoding (UVD). UVD is designed to enable a cool and quiet media PC with low CPU power requirements and playback of HD 1080p content. HD Monitor is required for full 1080p enjoyment.
-The HIS DVI to HDMI Adapter for ATI 4000/ 3000 series is required to fully utilize the audio through HDMI features
HDMI Video and Audio
A system with an ATI RadeonTM HD 4800 Series graphics card can help enhance the HD entertainment experience by providing a seamless connection to an HDTV or home theater system. With built-in 7.1 surround sound audio (AC3 / DTS ), the new GPUs and graphics cards support single cable connection directly to a compatible HDTV, projector or receiver. This single cable carries both the HD video and 8 channel audio for a clean, high definition connection. Some graphics cards will be equipped with an HDMI connector, while others will output the HDMI signal using a special ATI Radeon DVI-I to HDMI adapter. These options give consumers more options and flexibility when connecting their PCs to monitors or home theaters for maximum enjoyment of HD content. The new GPU also supports xvYCC color which can display a wider range of color when connected to capable HDTVs.
-The HIS DVI to HDMI Adapter for ATI 4000/ 3000 series (Product Code: HHDMI4071) is required to fully utilize the audio through HDMI features
Microsoft DirectX 10.1 support
ATI RadeonTM HD 4800 series GPUs offer full support for the new DirectX® 10 and DirectX® 10.1 API (Application Program Interface) from Microsoft; ready to meet the demanding needs of new, next generation games. DirectX 10 is the first totally new DirectX in the last 4 years and brings important graphics innovations that can be used by game developers for the next generation of games. DirectX 10 introduces crisp, never-beforeseen detail-rich images, visual effects and game dynamics capable of accurately simulating the real world. No matter which ATI RadeonTM HD 4800 Series GPU you choose, you can be assured that games will look as good as the developer intended!
ATI CrossFireXTM Technology
ATI CrossFireXTM multi-GPU technology takes your gaming experience to the next level with superb scalability, performance and compatibility. The technology combines the awe-inspiring capabilities of multiple ATI RadeonTM graphics cards and an ATI CrossFireX ready motherboard to meet the hard-core demands of your alternate reality. New ATI RadeonTM HD graphics cards are designed with an internal ATI CrossFireTM Bridge Interconnect system to simplify installation.
Microsoft Windows Vista
ATI RadeonTM HD 4800 series graphics cards provide support for the Microsoft® Windows Vista® operating system and take advantage of the Windows AeroTM graphical interface. You will be amazed by the dazzling 3D visual effects and have peace of mind that the ATI CatalystTM software and drivers are designed and thoroughly tested to ensure full compatibility and stability to help keep you up and running. All these new technologies and features make the ATI Radeon HD 4800 series of GPUs the ideal solution for ultimate HD gaming and HD video entertainment with the Windows Vista OS.
