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The *Official* GIGABYTE GA-MA785GM-US2H AMD 785G Chipset Motherboard Thread

230052 Views 727 Replies 181 Participants Last post by  Daye
Table of Contents
  • AMD 785G Chipset
  • AMD 785G Chipset Reviews
  • GIGABYTE 785G Chipset Motherboards
  • Chipset Drivers
  • AMD Chipset Roadmap
AMD 785G Chipset

AMD 785G chipset (codenamed RS880), released on August 4, 2009, is the successor to AMD 780G chipset that has been used widely since its release on March 2008. The main difference is a new IGP called Radeon HD 4200 (codenamed RV620, clocked at 500MHz, but the number of stream processors is 40, the same as HD 3200, RV610). Southbridge is SB710, a minor revision of SB700. Improvements over 780G are:

Integrated Graphics HD 4200
  • DirectX 10.1 support
  • 2nd generation Unified Video Decoder (UVD 2)
    • Full hardware decode acceleration of H.264/VC-1/MPEG-2 (full hardware decode acceleration of MPEG-2 is not supported in HD 3200?)
    • Hardware decode acceleration of a secondary video stream (Picture-in-Picture) (10-20% CPU usage decrease)
  • Improved ATI Avivo Video Post Processor
    • Enhanced DVD up-conversion to HD
    • Automatic dynamic contrast adjustment
  • Multichannel LPCM over HDMI (no PAP, no HD audio bitstreaming, of course). Update: Only stereo LPCM in addition to DD/DTS bitstreaming is supported over HDMI
Southbridge SB710
  • ACC (Advanced Clock Calibration) support

AMD 785G Chipset Reviews
Well if you are interested only in the video playback aspect of HD 4200, perhaps most of them are not worth reading. The articles that contain (meaningful, IMO) video playback performance tests are:
That's it! The other articles neglected this aspect, as expected usually.

GIGABYTE 785G Chipset Motherboards

Here are brief descrptions of the available models and their differences.

  • GA-MA785GMT-UD2H

    Supports DDR3-SDRAM (letter T), all solid capacitors (letter D).

    - Newegg, $90

    - PROVANTAGE, $90


    Supports DDR3-SDRAM (letter T), SidePort memory (letter P), all solid capacitors (letter D).
ATX Chipset Drivers

Basically the drivers are common to all the above models.

AMD Chipset Roadmap

VR-Zone - AMD 800 Series Chipsets Launch Schedule (September 4, 2009)

VR-Zone has put together a roadmap of the AMD 800 series chipsets line-up slated for release in Q2 next year. AMD 890FX/GX + SB850, part of the "Leo" platform for enthusiasts is slated for launch in April 2010 replacing the current AMD 790FX/GX + SB750 chipset. AMD 880G + SB810, part of the "Dorado" mainstream platform will come along in May 2010 replacing the current AMD 785G + SB710 chipset. AMD 880G comes with enhanced IGP graphics performance which we presume is DX11 capable and sports the next generation ATI Hybrid graphics technology. Overall, the AMD 880G board could be priced cheaper due to the integrated clock generator and integrated Broadcom MAC.

Hopefully AMD will fix the HDMI audio issue with the AMD 880G chipset.
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reserved12, the end of the reserved posts.
You linked to the ATX board the UD3H , the micro-ATX is here http://www.newegg.com/Product/Produc...82E16813128394 which is the US2H. Looks like a killer board, hopefully an ITX will be made with the 785G chipset.
Oops, fixed.

Originally Posted by mufdvr3669 /forum/post/16832360

You linked to the ATX board the UD3H , the micro-ATX is here http://www.newegg.com/Product/Produc...82E16813128394 which is the US2H. Looks like a killer board, hopefully an ITX will be made with the 785G chipset.

Looks like the mATX board that is currently available is the one without sideport memory. Would this be a real issue for an HTPC that wouldn't be doing any gaming?
Just a warning here, the drivers on the CD (the only ones that work unless you have the 9.8 betas from AMD engineering) are going to cause a lot of frustration.
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Will the 785 provide more help in playing Blu-Ray advanced audio? Will any other upcoming hardware help?
You know, it's been a while since I built a computer... I think it's about that time.
I bought it from newegg then canceled due to bingo's advise
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Your order might have been canceled anyways. Looks like the pulled it from sale (link comes up as deactivated) for whatever reasons (not allowed to sell it yet?)
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