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Sapphire HD5770 Flex Review on 3 monitors

Rating: 9.5.

ATI's HD5770 has been a monster success story for them – and rightly so, it combines a killer combination of gaming performance and value for money.

KitGuru has reviewed many HD5770's in the past and we have also concentrated on Crossfire performance.

Today however we have something special in mind for our readers. The new Sapphire HD5770 Flex Edition which can support up to four monitors via ATI Eyefinity. Sapphire have managed to achieve this by using three DVI connections – one being an HDMI to DVI adapter. The card itself operates at 850 mhz core and 1200mhz (4800mhz effective) on the GDDR5 memory.

We have had this card in our offices for quite some time now (a very early version without full retail packaging), but we wanted to hold fire on a review until we managed to get time to fully utilise a three screen configuration – we believe there is very little point reviewing this specific product without concentrating on the amazing multiscreen display options.

Today KitGuru has a thorough analysis of the Sapphire HD5770 Flex in a 3 monitor configuration – this card is the first product on the market to deliver a true SLS (Single Large Surface) work area without the need for costly active adapters. The majority of HD 5000 series cards with ATI Eyefinity support demand that the third monitor is Displayport compatible, or that an active Displayport to DVI or VGA adapter is used.


  • SAPPHIRE Flex Technology supports 3 displays without the requirement of DisplayPort monitors or Active DP adapters, and can support up to 4 displays with the use of a DisplayPort monitor or Active adapter.
  • Microsoft DirectX® 11 Support
    • Shader Model 5.0 Support
    • Direct Compute 11
    • Programmable hardware tessellation unit
    • Accelerated multi-threading
    • HDR texture compression
    • Order-independent transparency
  • 1.04 billion 40nm transistors
  • 800 Stream Processing Units
  • OpenGL 4.0 support
  • ATI Eyefinity Technology
  • ATI Stream acceleration technology
    • OpenCL 1.0 compliant
    • DirectCompute 11
    • Accelerated video encoding, transcoding, and upscaling
  • 2nd Generation TeraScale Engine
  • PCI Express 2.1 x16 bus interface
  • Advanced 1GB/128-bit GDDR5 memory interface
  • HDMI 1.3 support with Deep Color and 7.1 High Bitrate Audio
  • On chip HDCP Support
  • ATI CrossFireX™ multi-GPU support for highly scalable performance. (Use up to four discrete cards with an AMD 790/890FX based motherboard)
  • ATI Avivo HD Support
    • ATI Unified Video Decoder 2 (UVD) for Blu-ray™ and HD Video.
    • Accelerated Video Transcoding (AVT)
    • DVD Upscaling
    • Dynamic Contrast
    • Built-in HDMI with 7.1 surround sound support
    • Support for H.264, VC-1 and MPEG-2
    • Dual Stream 1080p playback support
    • DXVA 1.0 & 2.0 support

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