Can't use 1280x720 in HD4670 512MB GDDR3


  1. Games Goblin
    Posts : 15
    Windows 7 Ultimate x64 Version 6.1 (Build 7600)
       New #1

    [Solved] Can't use 1280x720 in HD4670 512MB GDDR3


    Hi all

    I just bought a Sapphire ATI Radeon HD4670 512MB GDDR3 and installed the latest Catalyst drivers (I am on Windows 7 x64 Ultimate)

    But whenever I set a game's resolution to 1280x720 ( I tried this in NFS:Shift and Pro Evolution Soccer 2010 Demo), it goes to 1280x1024 with HUGE borders at the top and bottom of the screen. 1680x1050 resolution works fine. I also noticed that if I change my desktop resolution to 1280x720 - the same problem occurs - it changes to 1280x1024 with huge borders.

    My monitor is a Dell SP2208WFP. It has a maximum refresh rate of 60 Hz. I tried Forcing the refresh rate to 60 hz in the catalyst control center, but still the same problem. All drivers are updated (including the monitors) and all updates are installed. I had an XFX nvidia 8600GT 256MB GDDR3 card before and 1280x720 resolution worked fine on that card in Windows 7.

    Please help!
    Last edited by Games Goblin; 30 Oct 2009 at 02:52. Reason: Problem is Solved [thanks torrentg]
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  3. thefabe
    Posts : 4,280
    Windows 7 ultimate 64 bit / XP Home sp3
       New #2

    I can tell you who can help you with this is Torrentg.
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  4. torrentg
    Posts : 5,747
    7600.20510 x86
       New #3

    Monitor's native res is 1680x1050. 1680 divided by 1050 = 1.6 = 16:10 aspect ratio

    Choosing any non 16:10 aspect ratio will correctly leave black borders. Nothing is wrong and function is as supposed to be.

    If you want to play games without borders, always choose a 16:10 resolution.

    1680x1050
    1280x800
    960x600

    If you use other resolutions, you will have to stretch the screen out (possibly with driver app) and that will cause a distortion in proper aspect ratio. A square will not be square, rather, rectangle.

    Advice is to play under resolutions above.

    1280x720 is 16:9 ratio.
    Some games, you can choose resolution and also the aspect ratio you want to use. In this case, always choose 16:10.
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  6. Games Goblin
    Posts : 15
    Windows 7 Ultimate x64 Version 6.1 (Build 7600)
    Thread Starter
       New #4

    Great!


    Bang on torrentg!! It works great now! Thanks for your help!

    Just one remaining doubt though: how come i could play in 1280x720 with my GeForce 8600GT?
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  7. torrentg
    Posts : 5,747
    7600.20510 x86
       New #5

    Different drivers. They probably do some kind of scaling or stretching.

    Think of taking a regular old skool tv and placing the image on a wide-screen...then stretching to fill.

    Not so good. People look fat.
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