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NVIDIA SLI: Linux vs. Windows

Michael Larabel

Published on 26 September 2007
Written by Michael Larabel
Page 4 of 4 - 16 Comments

Compared to our results from the past, our Linux SLI results using two 8600GT graphics cards and the 100.14.19 driver are quite impressive. NVIDIA's SLI was the biggest benefit in Quake 4 when using the Alternate Frame Rendering (AFR) mode as opposed to Split Frame Rendering (SFR) mode. In some cases, the SLI AFR results were almost double of the single GPU Linux results. However, when comparing these numbers to Windows, there is still very much a performance delta between the two operating systems on the latest GeForce 8 hardware. In some of the benchmarks, a single GeForce 8600GT running in Windows was faster than two GPUs running in Scalable Link Interface under Linux. The single GPU improvements in the latest driver are quite nice and the benefits of SLI under Linux are becoming noticeable, but without a doubt it's running much slower than Microsoft Windows with their 162.18 WHQL driver.

What have your experiences with SLI under Linux or Solaris been like? Tell us in the Phoronix Forums.

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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