PowerColor AX6990 4GBD5-M4D Video Card E-mail
Reviews - Featured Reviews: Video Cards
Written by Bruce Normann   
Sunday, 20 March 2011
Table of Contents: Page Index
PowerColor AX6990 4GBD5-M4D Video Card
Closer Look: PowerColor Radeon HD 6990
PowerColor Radeon HD 6990 Detailed Features
Features and Specifications
Video Card Testing Methodology
DX10: 3DMark Vantage
DX10: Just Cause 2
DX9 SSAO: Mafia II
DX11: Aliens vs. Predator
DX11: Battlefield: Bad Company 2
DX11: DiRT-2 Demo
DX11: H.A.W.X. 2
DX11: Lost Planet 2
DX11: METRO 2033
DX11: Unigine Heaven 2.1
PowerColor HD 6990 Temperatures
Overclocking
AMD Radeon HD 6990 Final Thoughts
PowerColor Radeon HD 6990 Conclusion

AMD Radeon HD 6990 GPU Features

AMD-Radeon-Graphics-Logo-250px.jpg

AMD Radeon HD 6990 GPU Feature Summary:

  • 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
    • 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) technology
      • 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 technology
    • 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, triple or quad-GPU scaling
  • Cutting-edge integrated 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: 2560x160
  • 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.

Now, here are the usual disclaimers:

2010 Advanced Micro Devices, Inc. All rights reserved. AMD, the AMD Arrow logo, Catalyst, CrossFireX, PowerPlay, Radeon and combinations thereof are trademarks of Advanced Micro Devices, Inc. Microsoft, Windows, Windows Vista, and DirectX are registered trademarks of Microsoft Corporation in the U.S. and/or other jurisdictions. PCI Express is a registered trademark of PCI-SIG. Other names are for informational purposes only and may be trademarks of their respective owners.

Additional hardware (e.g. Blu-ray drive, HD or 10-bit monitor, TV tuner) and/or software (e.g. multimedia applications) are required for the full enablement of some features. Not all features may be supported on all components or systems - check with your component or system manufacturer for specific model capabilities and supported technologies.

  1. AMD Eyefinity technology works with games that support non-standard aspect ratios, which is required for panning across multiple displays. To enable more than two displays, additional panels with native DisplayPortTM connectors, and/or DisplayPortTM compliant active adapters to convert your monitor's native input to your cards DisplayPortTM or Mini-DisplayPortTM connector(s), are required. SLS ("Single Large Surface") functionality requires an identical display resolution on all configured displays.
  2. AMD EyeSpeed is a set of technologies designed to improve video quality and enhance application performance. Full enablement of some features requires support for AMD Accelerated Parallel Processing (APP) technology and/or AMD's Universal Video Decoder (UVD).
  3. AMD PowerPlayTM and AMD Accelerated Parallel Processing (APP) are technology platforms that include a broad set of capabilities offered by certain AMD RadeonTM HD GPUs. Not all products have all features and full enablement of some capabilities and may require complementary products.
  4. Requires application support for AMD Accelerated Parallel Processing (APP) technology. AMD Accelerated Parallel Processing technology works with applications designed to take advantage of its GPU acceleration capabilities.
  5. AMD HD3D is a technology designed to enable stereoscopic 3D support in games, movies and/or photos. Requires 3D stereo drivers, glasses, and display.
  6. AMD CrossFireXTM technology requires an AMD CrossFireX Ready motherboard, an AMD CrossFireXTM Bridge Interconnect (for each additional graphics card) and may require a specialized power supply.

AMD Radeon HD 6990 GPU Detail Specifications

6990_gpu_closeup_1.jpg
The actual GPUs retain the standard part number of the Cayman (215-0807007), but AMD screens them from the regular production, looking for high clock speeds and low leakage. Those two things should go hand-in-hand, so I imagine the screening process is pretty straightforward. Let's look at the specs of two Cayman-class GPUs combined into one processing unit:

GPU Engine Specs for PowerColor Radeon HD 6990:

  • Fabrication Process: TSMC 40nm Bulk CMOS
  • Die Size: 778mm2
  • No. of Transistors: 5.28 Billion
  • SIMD Engines: 48
  • Stream Processors: 3072
  • Texture Units: 192
  • ROP Units: 64
  • Engine Clock Speed: 830 MHz
  • Texel Fill Rate (bilinear filtered): 159.4 Gigatexels/sec
  • Pixel Fill Rate: 53.1 Gigapixels/sec
  • Maximum board power: 375 Watts
  • Typical gaming power load: 350 Watts
  • Minimum board power: 37 Watts

Memory Specs:

  • Memory Clock: 1250 MHz - DDR
  • Memory Configurations: 2x 2 GB GDDR5
  • Memory Interface Width: 256-bit
  • Memory Data Rate: 5.0 Gbps/GPU
  • Memory Bandwidth: 160.0 GB/sec/GPU

Display Support:

  • Maximum DVI Resolution: 2560x1600
  • Maximum VGA Resolution: 2048x1536
  • Maximum Display Output: 4x - 1920x1200
  • Standard Display Connectors:
    • One Dual-Link DVI
    • Four Mini Display Port v1.2

Graphics Card Dimensions:

  • Height: 110 mm
  • Length: 305 mm
  • Width: 38 mm (Dual-slot)

Source: AMD.com and PowerColor.com

Now that we've had the grand tour of the PowerColor AX6990 4GBD5-M4D, inside and out, it's time to put it to the test. Well, Benchmark is our first name, so don't worry. There are a wide variety of tests waiting for you in the next several sections, including some new entries. Let's start off with a complete description of the Video Card Testing Methodology.



 

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