Win7 GUI/2D slower then XP? RRS feed

  • Question

  • From the following videos the author believes the issue is related to the "partial" use of GDI+ hardware acceleration instead of full GDI+ support.  I'm not sure what is true about this but I've not had this problem with XP SP3.  I've seen it in win7 but it comes and goes.  For example I've seen it in particular folders with over 100 files which has a long scroll.  Can this be fixed?

    Below are the videos demonstrating the issue:





    The video below clearly shows the difference in how smooth you can navigate through Explorer:





    Friday, September 3, 2010 4:34 PM

All replies

  • Can this be fixed?

    No, this happens because of the change from the driver model to WDDM. The perfomance with WDDM1.1 was improved a bit:


    "A programmer is just a tool which converts caffeine into code" CLIP- Stellvertreter http://www.winvistaside.de/
    • Proposed as answer by Andre.Ziegler Wednesday, September 29, 2010 9:14 PM
    Friday, September 3, 2010 10:09 PM
  • Someone within MS must have a solution or possible temp fix for this. 
    Saturday, September 4, 2010 4:31 AM
  • No, there is and there will be no fix, we must wait till Windows 8. Hopefully MS implements the complete UI with Direct2D to get hardware accelerated GUI.

    "A programmer is just a tool which converts caffeine into code" CLIP- Stellvertreter http://www.winvistaside.de/
    Saturday, September 4, 2010 2:08 PM
  • That's a real shame man! A real shame!  The only way I've overcome this is to overclock my quad to at least 3.70GHz or higher.  I don't recall seeing any improvement with a dual core OC though. 
    Saturday, September 4, 2010 7:01 PM
  • System requirements increase over operating system revisions as overhead grows in order to support new features.  This can result in identical hardware appearing to run “better” on an older operating system.

    As just one example, Windows 7 includes the underpinnings to support the much lauded Windows Aero interface.

    Monday, September 20, 2010 11:26 PM
  • This actually doesn't have to do with the acceleration. The explorer gui problem is because they switched the listing machanism in explorer. In vista they used to older one and with wddm they had no problems with cpu throttle even when scrolling up and down. This has to do with the new folder listing operation. There is a tweak that puts it back to the old one but it doesn't use it on the libraries. Even if you use a xddm driver with full gdi acceleration the scrolling performance in large folders is still sluggish.
    Wednesday, September 29, 2010 7:19 PM