Edit: It seems the utility is no longer functional with the latest catalyst 13.1 drivers. I will try to post an update when there's any news on a fix or a newer version. Edit 2: A temporary work-around can be found here. Keep in mind that the AMD Catalyst Un-install Utility currently supports Windows 7 only and should not be used with windows 8. Edit 3: Details concerning an alternative utility can be found here. Be sure to follow the instructions carefully and read the utility's requirements and limitations at the linked page. All credit goes to the original author. Mr Lolman. http://www.forum-3dcenter.org/vbulletin/showpost.php?p=9282115&postcount=5099 A regularly updated list of maximum resolutions possible according to display model. http://www.forum-3dcenter.org/vbulletin/showthread.php?t=457358 http://www.forum-3dcenter.org/vbulletin/showthread.php?t=529285 English language sources and originators of some material used in this guide. http://www.neogaf.com/forum/showthread.php?t=472941 http://www.overclock.net/t/1261203/amd-downsampling-guide A similar guide for Nvidia users. http://forums.guru3d.com/showthread.php?t=346325 Downsampling with AMD: Guide and Demonstration This guide will demonstrate how to use downsampling with AMD graphics cards to attain a higher quality image in games and other applications without the need for high levels of antialiasing. This will be accomplished by using a java based utility called AMDDownsamplingGui. Links to current version: DownSamplingGui_0.6 Rapidshare: https://rapidshare.com/files/2911242606/DownSamplingGui0.6.zip Netload: http://netload.in/dateiQJPAL10qEI.htm MediaFire: http://www.mediafire.com/?exmsqbt2sji5abj English translation by fr33jack: http://www.mediafire.com/?hcenb6kacottbcc Usage of this utility is at your own risk. 1. Download the AMDDownsamplingGui utility from any of the links above. Create a system restore point. 2. Extract the downloaded archive to any location. Find the contained file called Downsample.exe and run this file. Click Erstellen from the bottom-right to bring up the following: Use the drop-down tab at the top to bring up a list of resolutions based on your display's aspect ratio. Click OK to install the chosen resolution. Alternatively, click Benutzerdefiniert to enter a custom resolution. Open display properties from the Catalyst Control Centre or screen resolution settings for your operating system to confirm the new display resolutions are now available. 3. Ensure GPU scaling is not enabled. You may also need to ensure that the tick box hide modes that this monitor can not display is unticked from your monitor's advanced settings. Otherwise, you may get the following error message. If the tick box labelled hide modes that this monitor can not display is greyed out, you could try creating your own custom monitor driver by clicking INF erstellen from the Extras tab at the very top of the GUI. A selection of new maximum resolutions is already included and is based on display aspect ratio. Custom maximum resolutions can also be used by clicking Benutzerdefiniert, these should ideally also be chosen based on your display's aspect ratio. The new custom INF file can be saved to a location of choice by clicking Speichern. Instructions on how to install the custom monitor driver can be found by clicking Anleitung. However, the instructions are in German. Monitor driver installation instructions in English. http://support.acer.com/acerpanam/monitor/0000/Acer/AC501/AC501faq10.shtml Alternatively, you could try one of the custom monitor drivers posted at the original thread. http://www.forum-3dcenter.org/vbulletin/attachment.php?attachmentid=42708&d=1336212261 http://www.forum-3dcenter.org/vbulletin/attachment.php?attachmentid=42742&d=1336501568 http://www.forum-3dcenter.org/vbulletin/attachment.php?attachmentid=42700&d=1336078034 All custom monitor drivers from above packed as a single download. https://rapidshare.com/files/4278425148/Custom Monitor Drivers.zip http://www.mediafire.com/?bgemty565l1bv6a 4. To remove a custom resolution, choose the resolution from the drop-down list and click Löschen. 5. Watch the following video demonstration that includes in-game footage of Battlefield 3 with downsampling enabled. Click on video to view (external site) Click on the following thumbnails for a side-by-side comparison. To view at original resolution, right click and save to your desktop. 1920x1200 2560x1600 6. Enjoy better quality gaming. FAQs I can't get the AMDDownsamplingGui utility to run. You need 'Java'. Download it from here: http://java.com/en/ I can't get my display to work with anything higher than 2560x1440 or 2560x1600. For most display devices this may not be possible. A list containing display devices that can go higher with confirmed maximum resolutions can be found at the top of this page. Many thanks to WhiteLightning for spotting these. I can not change the tick box labelled hide modes that this monitor can not display, as it is greyed out in advanced display properties. You can try one of the custom monitor INF files posted in the guide. Many thanks to teleguy for spotting these. After changing the display resolution for my HDMI display most colours are darker or otherwise not correct. The display may have switched to RGB limited when using a custom resolution. Changing to non standard in the HDMI options should make the display run at full RGB. Many thanks to Derko1 for pointing this out. For some reason this utility is only allowing me to add the new resolution to secondary monitors and not my primary one. Any ideas? Apply it for each monitor by making the one you are using the primary and disabling the others, then apply the new settings from the single enabled display. This is what I had to do to get it to wok for my HDTV while my computer display was connected. There might be another way to do this by altering the display Index number at the top of the utility, I did not try this, however. Does the downsampling still work if I choose the custom resolution in windows and in-game? It should work fine whether you use the custom resolution for windows and games or only in games. Though, I would recommend using it just for games as the much higher resolution will probably make it difficult to navigate the desktop. Will using this utility result in increased CPU usage for heavily CPU bound games like Skyrim? Actually, running at a higher display resolution should either have very little effect on CPU usage or, more likely, reduce it slightly. Display resolution is not directly linked to CPU usage. Instead, a higher or lower display resolution increases or reduces GPU usage respectively. All other things being equal, a higher GPU load means less data required from the CPU and therefore lower CPU usage. In the specific case of Skyrim: the shadows, AI, water and other physics effects are CPU based, so the CPU is indeed quite important. However, running the game at a higher resolution will not affect the number of calculations for any of these, as the CPU based internal shadow resolution does not change and neither will the water or physics calculations increase with resolution. What will change, however, is that the GPU will be busier rendering everything at a higher resolution and will therefore refer to the CPU for data less often. How much performance will I lose when using downsampling? This will depend entirely on the game in question. In most cases the performance impact will be proportional to the increase in resolution or total number of pixels. However, graphics card memory may also need to be considered. Overall, this method should provide image quality comparable to full scene antialiasing but with far less compatibility issues and in many cases higher performance. The downside is that in some cases game menus may become harder to read. Fortunately, many games - for e.g. Arma 2 - allow you to increase the size of the UI and in some - for e.g. Need for Speed: The Run - it will auto-adjust. Here's a performance comparison for 'Dirt 2' posted by Derko1. I can't use the utility in windows 8 due to a missing digital signature error. A possible workaround was posted by nitroin.