Graphics Engine : ATI RADEON HD 6990
Bus Standard : PCI Express 2.0
Video memory : GDDR5 4GB
Core Clock : 830 / 880 MHz
Memory Clock : 5.0GHz (1250X 4)
Memory interface : 256 bit x2
Shader : 1536(Unified) x 2
Resolution Max : 2560 x 1600
Video Out Function : DVI, 4x mini Display Port
HDCP/HDTV/HDMI : Yes, Yes, Yes

SPECIFICATION
- High Speed 256-bit GDDR5 memory interface
- PCI Express 2.1 x16 bus interface
- “Eye-Definition” graphics
 - New and advanced architecture
  - Full DirectX® 11 support
  - Scalable geometry processing technology
  - Shader Model 5.0
  - DirectCompute 11 support
  - Dual 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 6 simultaneous displays
 - Independent resolutions, refresh rates, color controls, and video overlays
 - Display grouping
  - Combine multiple displays to behave like a single large display

- AMD EyeSpeed visual acceleration2
 - AMD Accelerated Parallel Processing (APP) technology3,4
  - 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 technology5
 - Stereoscopic 3D display/glasses support
 - Blu-ray 3D support
 - Stereoscopic 3D gaming
 - 3rd party Stereoscopic 3D middleware software support

- AMD CrossFireXTM multi-GPU technology6
 - 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 PowerPlayTM power management technology3
 - AMD PowerTune technology
  - Intelligent power management hardware
 - Dynamic power management with low power idle state
 - Ultra-low power state support for multi-GPU configurations

- AMD CatalystTM graphics and HD video configuration software
 - Software support for Windows 7, Windows Vista, and Windows XP
 - AMD CatalystTM Control Center - AMD CatalystTM software application and user interface for setup, configuration, and accessing features of AMD Radeon products.
 - Unified Graphics display driver - AMD CatalystTM software enabling other PC programs and devices to use advanced graphics, video, and features of AMD RadeonTM products.
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