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Phoronix Test Suite

OpenBenchmarking.org

Bettering Radeon Gallium3D Performance With PCI-E 2.0

Michael Larabel

Published on 20 January 2012
Written by Michael Larabel
Page 4 of 4 - 59 Comments

Nexuiz at 1280 x 1024 was also beneficial to the Radeon HD 4670 graphics card, unlike the tests at 1920 x 1080 where the HD 4670 did not benefit from the increased transfer rates.

When running at only 800 x 600, this was the point at which the additional bandwidth of PCI Express 2.0 was no longer beneficial to the Radeon HD 4670 (or any other card).

If you wish to try out the PCI-E 2.0 support with the Radeon DRM driver, boot the system with "radeon.pcie_gen2=1" if using a kernel from the past year. Hopefully in a future release, they will come up with a better strategy to enabling the PCI Express 2.0 support by default for Radeon, which as these results show, can greatly increase the OpenGL performance.

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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