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AMD R600/700 2D Performance: Open vs. Closed Drivers
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| From the three different test profiles we used and the two
| graphics cards that were tested, nearly every time the open-
| source driver stack wound up being faster than the Catalyst 9.10
| driver. Past tests of other graphics cards and drivers have shown
| the 2D performance to be better on the open-source side, albeit
| these 2D tests are not very real-world representative (nor do
| they reflect the CPU usage) and on the 3D side the proprietary
| Catalyst driver is significantly faster and more feature-rich
| than the current open-source code.
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http://www.phoronix.com/scan.php?page=article&item=amd_r600_r700_2d&num=1
Recent:
AMD solves a fundamental GPU scaling problem
,----[ Quote ]
| If you are thinking that Linux, and sometimes even Windows, can do
| multiple monitors, there is a very large problem with how some
| implementations work. For Windows, each monitor is it's own separate
| workspace, and this has some hugely important implications. If you put
| two monitors on Windows, and drag a video, or something that uses
| overlays, so it spans two screens, half of the image or movie will not
| display.
`----
http://www.semiaccurate.com/2009/09/10/ati-eyefinity-runs-wow-at-7k-resolution/
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