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Windows 7: Can't use 1280x720 in HD4670 512MB GDDR3

29 Oct 2009   #1

Windows 7 Ultimate x64 Version 6.1 (Build 7600)
[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!

My System SpecsSystem Spec

29 Oct 2009   #2

Windows 7 ultimate 64 bit / XP Home sp3

I can tell you who can help you with this is Torrentg.
My System SpecsSystem Spec
29 Oct 2009   #3

7600.20510 x86

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.


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.
My System SpecsSystem Spec

30 Oct 2009   #4

Windows 7 Ultimate x64 Version 6.1 (Build 7600)

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?
My System SpecsSystem Spec
30 Oct 2009   #5

7600.20510 x86

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.
My System SpecsSystem Spec

 Can't use 1280x720 in HD4670 512MB GDDR3

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