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本帖最后由 chm128256_1 于 2011-4-10 10:30 编辑
samsunggram 发表于 2011-4-9 17:36 ![]()
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http://www.amd.com/us/products/desktop/graphics/amd-radeon-hd-6000/hd-6990/Pages/amd-radeon-hd-6990-overview.aspx#4
AMD Radeon™ HD 6990 Graphics
- Overview
- System Requirements
- Specifications
- Support
- Footnotes
Overview
Perfection is not an accident. Dual 2nd-gen DirectX® 11 GPUs.
4GB GDDR5.
Quite simply the fastest graphics card in the world.
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- Harnessing the incredible power of dual second-generation DirectX® 11-capable GPUs, the AMD Radeon HD™ 6990 is quite simply the fastest graphics card in the world.6
- Featuring 4GB of high-speed GDDR5 memory, the AMD Radeon™ HD 6990 is the definitive solution for ultra-high resolution gaming across up to six simultaneous displays.1
- Break barriers. Crush records. Flip the Unlocking Switch and take your AMD Radeon™ HD 6990 beyond the bleeding edge.8
- Higher clocks. Faster gaming. Devastatingly intelligent power management. That’s AMD PowerTune technology on the AMD Radeon™ HD 6990.7
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System Requirements - PCI Express® based PC is required with one X16 lane graphics slot available on the motherboard
- 750W Watt or greater power supply with two 150W 8-pin PCI Express® power connectors recommended (1000W and four 8-pin connectors recommended for AMD CrossFireX™ technology in dual mode. 1200W recommended for optimal performance).
- Certified power supplies are recommended. Refer to http://ati.amd.com/certifiedPSU for a list of Certified products
- Minimum 1GB of system memory
- Installation software requires CD-ROM drive, a keyboard, a mouse, and a display
- DVD playback requires DVD drive and a DVD
- Blu-ray™ playback requires Blu-ray drive and a Blu-ray disc
- For an AMD CrossFireX™ system, a second AMD Radeon™ HD 6990 Graphics card, an AMD CrossFireX™ Ready motherboard and one AMD CrossFireX™ Bridge Interconnect cable is required
- Use of 3 or more displays with AMD Eyefinity technology requires a DisplayPort-capable panel or an AMD Eyefinity validated dongle. See http://www.amd.com/EyefinityDongles for a list of validated DisplayPort dongles.
Specifications - Default (BIOS1)
- Up to 830MHz Engine Clock
- 5.10 TFLOPs Single Precision compute power
- 1.27 TFLOPs Double Precision Compute Power
- Overclocked (BIOS2)
- Up to 880MHz Engine Clock
- 5.40 TFLOPs Single Precision compute power o 1.37 TFLOPs Double Precision Compute Power
- 4GB GDDR5 Memory
- 1250MHz Memory Clock (5.0 Gbps GDDR5)
- 320 GB/s memory bandwidth (maximum)
- TeraScale 3 Unified Processing Architecture
- 3072 Stream Processors
- 192 Texture Units
- 128 Z/Stencil ROP Units
- 64 Color ROP Units
- Dual geometry and dual rendering engines
- High Speed 256-bit GDDR5 memory interface
- PCI Express 2.1 x16 bus interface
- “Eye-Definition” graphics
- Second generation DirectX® 11 graphics
- Full DirectX® 11 support
- Scalable geometry processing technology
- Shader Model 5.0
- DirectCompute 11 support
- Quad advanced programmable hardware tessellation units
- Accelerated multi-threading
- HDR texture compression
- Order-independent transparency
- OpenGL 4.1 support
- Image quality enhancement technology
- Up to 24x multi-sample and super-sample anti-aliasing modes
- Adaptive anti-aliasing
- Enhanced Quality Anti-Aliasing (EQAA)
- Morphological Anti-Aliasing (MLAA)
- 16x angle independent anisotropic texture filtering
- 128-bit floating point HDR rendering
- AMD Eyefinity multi-display technology1
- Native support for up to 5 simultaneous displays
- Up to 6 displays supported with DisplayPort 1.2 Multi-Stream Transport
- Independent resolutions, refresh rates, color controls, and video overlays
- Display grouping
- Combine multiple displays to behave like a single large display
- AMD EyeSpeed visual acceleration technology2
- OpenCL 1.1 Support
- DirectCompute 11
- Double Precision Floating Point
- Accelerated video encoding, transcoding, and upscaling
- UVD 3 dedicated video playback accelerator
- MPEG-4 AVC/H.264
- VC-1
- MPEG-2 (SD & HD)
- Multi-View Codec (MVC)
- MPEG-4 part 2 (DivX, Xvid)
- Adobe Flash
- Enhanced Video Quality features
- Advanced post-processing and scaling
- Dynamic contrast enhancement and color correction
- Brighter whites processing (Blue Stretch)
- Independent video gamma control
- Dynamic video range control
- Dual-stream HD (1080p) playback support
- DXVA 1.0 & 2.0 support
- AMD HD3D technology4
- Stereoscopic 3D display/glasses support
- Blu-ray 3D support
- Stereoscopic 3D gaming
- 3rd party Stereoscopic 3D middleware software support
- AMD CrossFireX™ multi-GPU technology5
- Dual card performance scaling
- Cutting-edge display support
- DisplayPort 1.2
- Max resolution: 2560x1600 per display
- Multi-Stream Transport
- 21.6 Gbps bandwidth
- High bit-rate audio
- HDMI 1.4a with Stereoscopic 3D Frame Packing Format, Deep Color, xvYCC wide gamut support, and high bit-rate audio
- Max resolution: 1920x1200
- Dual-link DVI with HDCP
- Max resolution: 2560x1600
- Integrated HD audio controller
- Output protected high bit rate 7.1 channel surround sound over HDMI with no additional cables required
- Supports AC-3, AAC, Dolby TrueHD and DTS Master Audio formats
- AMD PowerPlay™ power management technology3
- AMD PowerTune technology7
- Intelligent power management hardware
- Dynamic power management with low power idle state
- Ultra-low power state support for multi-GPU configurations
- AMD Catalyst™ graphics and HD video configuration software
- Software support for Windows 7, Windows Vista, and Windows XP
- AMD Catalyst™ Control Center - AMD Catalyst™ software application and user interface for setup, configuration, and accessing features of AMD Radeon products.
- Unified Graphics display driver - AMD Catalyst™ software enabling other PC programs and devices to use advanced graphics, video, and features of AMD Radeon™ products.
Support InstallationFor optimal performance, please ensure one (1) or more empty expansion slots separates each AMD Radeon™ HD 6990 graphics card in a dual mode AMD CrossFireX™ technology configuration.
Dual-BIOS Support The AMD Radeon™ HD 6990 graphics card features dual-BIOS capabilities. This feature is controlled by the Unlocking Switch, which toggles between the factory-supported Performance BIOS of 375W (BIOS1), and an Extreme Performance BIOS (BIOS2) that can potentially unlock higher clock speeds and up to 450W of mind-blowing performance!
Caution:Do not use the 450W setting unless you are familiar with overclocking and are using high-quality system components to ensure maximum system stability. If you encounter system instability or other unexpected system performance while using the 450W setting, return the graphics card to the factory-supported 375W setting, as your system may not be properly equipped to handle the increased demands of the 450W setting.
The following procedure describes how to switch between BIOS settings using the Unlocking Switch on your AMD Radeon™ HD 6990 graphics card.
- Locate the yellow caution sticker adjacent to the AMD CrossFireX™ connector on your AMD Radeon™ HD 6990 graphics card. This sticker covers the Unlocking Switch and must be removed to access and change dual-BIOS switch positions.
- WARNING: Before proceeding, thoroughly review the documentation for your AMD Radeon™ HD 6990 graphics card and assure that your computer meets all minimum system requirements.
- Remove the sticker and set the Unlocking Switch to the desired setting:
- Position 1 — 450W Extreme Performance BIOS (BIOS2).
- Position 2 (shipping position) — 375W factory-supported Performance BIOS (BIOS1).
WARNING: AMD graphics cards are intended to be operated only within their associated specifications and factory settings. Operating your AMD graphics card outside of specification or in excess of factory settings, including but not limited to overclocking, may damage your graphics card and/or lead to other problems, including but not limited to, damage to your system components (including your motherboard and components thereon (e.g. memory)); system instabilities (e.g. data loss and corrupted images); shortened graphics card, system component and/or system life; and in extreme cases, total system failure. AMD does not provide support or service for issues or damages related to use of an AMD graphics card outside of specifications or in excess of factory settings. You may also not receive support or service from your system manufacturer.
DAMAGES CAUSED BY USE OF YOUR AMD GRAPHICS PROCESSOR OUTSIDE OF SPECIFICATION OR IN EXCESS OF FACTORY SETTINGS ARE NOT COVERED UNDER YOUR AMD PRODUCT WARRANTY AND MAY NOT BE COVERED BY YOUR SYSTEM MANUFACTURER’S WARRANTY.
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IP卡
狗仔卡
楼主
显身卡
发表于 2011-4-10 10:34
