Sapphire Radeon HD 7770 Overclocked Video Card

Sapphire Radeon HD 7770Based on the Cape Verde XT chipset, the HD 7770 features 640 streaming processors and 1GHz of GDDR5 memory with a 128 bit bus looks to be in close competition of the older Radeon HD 6850 series. We will now put the card through its paces and see just how well it does.



1 x Dual-Link DVI
1 x HDMI (with 3D)
2 x Mini-DisplayPort


1150 MHz Core Clock
28 nm Chip
640 x Stream Processors


1024 MB Size
128 -bit GDDR5
5000 MHz Effective


210(L)x110(W)x43(H) mm Size.


Driver CD


DVI to VGA Adapter
6 PIN to 4 PIN Power Cable

AMD Feature list for the Radeon HD 7770

1. Graphics Core Next(GCN) architecture based on 28 nm process
2. Microsoft DirectX 11.1 Support
3. AMD Eyefinity Technology
_ Display grouping -Combine multiple displays to behave like a single large display
4. AMD Power Tune Technology, intelligent TDP management.
5. Open GL 4.2 Support
6. AMD HD3D Technology
7. AMD App Acceleration
_ OpenCL 1.2 Support
_ Microsoft C++ AMP
_ DirectCompute 11
_ Double Precision Floating Point
_ AMD HD Media Accelerator
_ Universal Video Decoder (UVD)
_ H.264
_ VC-1
_ MPEG-2 (SD & HD)
_ MVC (Blu-ray 3D)
_ MPEG-4 Part 2 (DivX/Xvid)
_ Adobe Flash
_ DXVA 1.0 & 2.0 support
_ Enhanced Video Quality features
_ Advanced post-processing and scaling



Automatic de-interlacing

Mosquito noise reduction

Edge enhancement

3:2 pulldown detection
8. Microsoft Windows 7 Support
9. Image quality enhancement technology
_ Up to 24x multi-sample and super-sample anti-aliasing modes
_ Adaptive anti-aliasing
_ Morphological Anti-Aliasing (MLAA)
_ DirectX® 10/11 Super-Sample Anti-Aliasing (SSAA)
_ 16x angle independent anisotropic texture filtering
_ 128-bit floating point HDR rendering
10. AMD CrossFire™ for Dual GPU Scaling
11. Cutting-edge integrated display support
_ DisplayPort 1.2
_ Max resolution: 4096×2160 per display
_ Multi-Stream Transport
_ 21.6 Gbps bandwidth
_ High bit-rate audio
_ 1080p60 Stereoscopic 3D
_ Quad HD/4k video support
12. 3GHz HDMI 1.4a with Stereoscopic 3D Frame Packing Format, Deep Color, xvYCC wide gamut support, and high bit-rate audio
_ Max resolution: 4096×2160
_ 2560x1600p60 Stereoscopic 3D
_ Quad HD/4k video support
_ Dual-link DVI with HDCP
_ Max resolution: 2560×1600
13. Integrated HD audio controller s supports AC-3, AAC, Dolby® TrueHD and DTS HD Master Audio™.
14. AMD PowerPlay™ power management technology
_ Automatic power management with low power idle states
15. AMD ZeroCore Power Technology
_ Ultra-low idle power when system’s display is off
_ Efficient low power mode for desktop work
_ Secondary GPU in CrossFire technology configuration power down unneeded.

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