Trying Out Nouveau's Accelerated Pascal Support With DRM-Next, Mesa 17.2-dev
The Nouveau driver for GTX 1000 series hardware is fast enough to handle a 4K composited desktop, but gaming is a different story.
You may be able to run very lightweight OpenGL games on the current Pascal driver stack, but you probably didn't shell out hundreds of dollars to have a severely hampered GPU when using open-source.
For now, don't expect much performance-wise from the GTX 900/1000 series when using the open-source Nouveau driver. At least when using the NVIDIA binary driver you have a very performant, feature-rich, working driver stack for those not concerned about the software license of your hardware drivers.
For those wondering how the re-clocked Nouveau Kepler performance is with the latest DRM-Next code and Mesa 17.2-dev, I'll be posting some fresh benchmarks later this week with the GTX 780 Ti and then also the GTX 750 that is capable of being re-clocked.
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