Sapphire HD6670 Ultimate, HD6750 & HD6770 Review

gotdamojo06 - June 23, 2011
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Specifications:

Card Name	HD6670 Ultimate	HD6750	HD6770
GPU Clock	800 MHz	700 MHz	850 MHz
Memory Clock	1000 MHz	1150 MHz	1200 MHz
Technology	40nm	40nm	40nm
ROPs	16	16	16
DirectX Support	11.0	11.0	11.0
Shader Model Support	5.0	5.0	5.0
Open GL Support	4.1	4.1	4.1
OpenCL Support	1.1	1.1	1.1
DirectCompute Support	11	11	11
Memory Type	GDDR5	GDDR5	GDDR5
Bus Width	128 Bit	128 Bit	128 Bit
Memory Size	1024 MB	1024 MB	1024 MB
Bandwidth	64.0 GB/s	73.6 GB/s	76.8 GB/s

Features:

73.6 GB/s memory bandwidth
Up to 1.008 TFLOPs compute power
TeraScale 2 Unified Processing Architecture
- 720 Stream Processors
- 36 Texture Units
- 64 Z/Stencil ROP Units
- 16 Color ROP Units
PCI Express® 2.1 x16 bus interface
Full DirectX® 11 support
- Shader Model 5.0
- DirectCompute 11
- Programmable hardware tessellation unit
- 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
- 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
- Independent resolutions, refresh rates, color controls, and video overlays
- Display grouping
- Combine multiple displays to behave like a single large display
AMD App Acceleration
- OpenCL™ 1.1
- DirectCompute 11
- Accelerated video encoding, transcoding, and upscaling
UVD 2 dedicated video playback accelerator
- H.264
- VC-1
- MPEG-2
- H.264 MVC (Blu-ray 3D)
- 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
  - 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 CrossFireX™ multi-GPU technology5
- Dual GPU scaling
Cutting-edge display support
- Integrated DisplayPort Output
  - Max resolution: 2560x1600 per display
- Integrated HDMI 1.4a with Stereoscopic 3D Frame Packing Format, Deep Color, xvYCC wide gamut support, and high bit-rate audio
  - Max resolution: 1920x1200
- Integrated Dual-link DVI with HDCP
  - Max resolution: 2560x1600
- Integrated VGA
  - Max resolution: 2048x1536
Integrated HD audio controller
- Output protected high bit rate 7.1 channel surround sound over HDMI or DisplayPort with no additional cables required
- Supports AC-3, AAC, Dolby TrueHD and DTS Master Audio formats
AMD PowerPlay™ power management technology3
- 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
- Unified graphics display drivers
  - Certified for Windows 7, Windows Vista, and Windows XP
- AMD CatalystTM Control Center
- Software Application and user interface for setup, configuration, and accessing special features of AMD Radeon™ Graphics.