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Phoronix Test Suite

OpenBenchmarking Benchmarking Platform
Phoromatic Test Orchestration

ATI Open vs. Closed-Source Performance

Michael Larabel

Published on 4 November 2007
Written by Michael Larabel
Page 4 of 4 - 2 Comments

In the GTK+ performance measured by GtkPerf, the open-source Radeon driver was faster at rendering in most cases. Granted, we hadn't compared the CPU load during this, but the open-source driver overall was about 10 seconds faster than the fglrx driver in the total time needed to complete 1,000 GtkPerf trials. In the individual GtkPerf tests, the results varied but were within a few seconds of each other.

While we hadn't thrown any of the old fglrx drivers into today's tests, it looks like we're approaching a state where the R300/400 GPUs powered by open-source software has a comparable frame-rate to the ATI/AMD binary blobs based upon their old code-base. There's still much work left to do, seeing as a Radeon X800 series part unless using the fglrx driver cannot even properly handle Doom 3 let alone Enemy Territory: Quake Wars. Though once AMD gets around to releasing the additional GPU specifications that they have promised (as right now they have only released about 900 pages for the R500/600 series), we will hopefully see a number of improvements. Neither side has a perfect solution, but with the 8.42.3 driver still running fresh off the new driver code-base and the just-implemented AIGLX support, check out the Phoronix Forums about a number of bugs that people have been experiencing with this Linux driver.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
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