Originally posted by zanny
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AMD Kaveri's Open Radeon Performance Now Multiple Times Faster
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Originally posted by benmoran View PostBecause I have a mini-itx rig for my main desktop, and don't plan to buy a discreet GPU any time soon. It's mostly a space issue. I've got my eye on a new fm2+ motherboard anyway that has some nice features, but I'm waiting to get an APU+MB combo at the same time. I'll do that once the performance is better than what I have.
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Originally posted by Espionage724 View PostIf I recall right, the Xorg.log (/var/log/Xorg.0.log on Ubuntu) should specify whether Color Tiling is on or off (just search for "tiling"). If you have multiple GPUs, it should mention tiling for each GPU.
[code]grayson@grayson-htpc:~$ cat /var/log/Xorg.0.log | grep Tiling
[ 21.594] (II) RADEON(0): KMS Color Tiling: enabled
[ 21.594] (II) RADEON(0): KMS Color Tiling 2D: enabled[/quote]
Thanks.
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Tested on my desktop with a discrete 7770 and open source drivers:
OpenBenchmarking.org, Phoronix Test Suite, Linux benchmarking, automated benchmarking, benchmarking results, benchmarking repository, open source benchmarking, benchmarking test profiles
I did try with fglrx, but my system locked up in the middle.
EDIT:
The tests I did see with fglrx were faster... but it was obviously less stable.
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Originally posted by sarmad View PostCan anyone explain what ColorTiling actually is?Last edited by agd5f; 28 January 2014, 03:09 PM.
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Originally posted by agd5f View PostTiling is way of storing data in memory to better utilize caches and memory channels. Generally GPUs want data with 2 dimensional data locality rather than 1 dimensional (e.g., you usually only are about a small portion of the screen at any given time so it's nice to have all that data nearby in memory). Rather than storing data linearly in a big array, you might store data for 8x8 regions of the image in subsequent addresses. It improves cache locality and maximizes memory bandwidth.
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Originally posted by schmidtbag View PostI don't know exactly what XMP is, but I'm assuming that it overrides your other RAM options. It wouldn't surprise me if it prevents you from changing your FSB too.
Basically it's overclocking for dummies and you can over ride it with your own settings if the mobo supports it.
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