One of the exciting features of LLVM 3.3 that is due out next month is the final integration of the AMD R600 GPU LLVM back-end. This LLVM back-end is needed for supporting Gallium3D OpenCL on AMD Radeon graphics hardware, "RadeonSI" HD 7000/8000 series support, and can optionally be used as the Radeon Gallium3D driver's shader compiler. In this article are some benchmarks of the AMD R600 GPU LLVM back-end from LLVM 3.3-rc1 when using several different AMD Radeon HD graphics cards and seeing how the LLVM compiler back-end affects the OpenGL graphics performance.
14 May 2013 - 23 Comments
With the AMD R600 Gallium3D shader optimizing back-end having been merged last week, new benchmarks were carried out at Phoronix to see the impact of the experimental shader optimizations on multiple AMD Radeon HD graphics cards.
7 May 2013 - 11 Comments
Yesterday after publishing the 15-way open-source vs. closed-source NVIDIA/AMD Linux graphics comparison there were some requests by Phoronix readers to also show how the LLVMpipe software rasterizer performance is in reference. For this article to end out the month are the OpenGL performance results from nine lower-end AMD Radeon and NVIDIA GeForce graphics cards running with their respective Mesa/Gallium3D drivers compared to the LLVMpipe software driver in two configurations.
30 April 2013 - 11 Comments
One week after delivering updated Radeon Gallium3D vs. AMD Catalyst benchmarks on Ubuntu Linux, we have to share this morning similar results for the open-source and reverse-engineered "Nouveau" Linux graphics driver compared to the proprietary NVIDIA Linux graphics driver. While the Nouveau driver has come a long way and does support the latest Fermi and Kepler GPUs, it's not without its share of shortcomings. Eleven NVIDIA GeForce graphics cards were used in this latest Phoronix comparison.
23 April 2013 - 61 Comments
Last week after a modern Intel Gallium3D driver was proposed for mainline Mesa, a side discussion ended up being ignited about making the i915 Gallium3D driver the default for older generations of Intel graphics hardware. To see where the i915 Gallium3D driver is at compared to the i915 Classic Mesa DRI driver, here are some new benchmarks from aging Intel i945 hardware.
22 April 2013 - 14 Comments
With the ever-changing state of Linux graphics drivers -- both for the open and closed-source drivers -- new tests have been conducted to compare the OpenGL graphics performance on Linux with AMD Radeon graphics. In this article are benchmarks of nine different Radeon HD graphics cards when being tested on the very latest AMD Catalyst (13.3 Beta 3) graphics driver as well as the open-source AMD Radeon driver consisting of Mesa 9.2-devel and the yet-to-be-released Linux 3.9 kernel.
17 April 2013 - 48 Comments
While Intel only supports their classic Mesa DRI driver when it comes to their open-source 3D driver on Linux, developed independently is also a Gallium3D driver for Sandy Bridge and Ivy Bridge generations of Intel graphics processors. In this article are benchmarks of the new Intel (i965) Gallium3D driver with Ivy Bridge HD 4000 hardware.
16 April 2013 - 11 Comments
The Gallium3D LLVMpipe driver that's commonly used as the fallback software rasterizer on Linux desktop systems when no GPU hardware driver is present, is a heck of a lot faster with the current Mesa development code. The gains are surprising and quite remarkable.
14 April 2013 - 24 Comments
Following on from our earlier Nouveau Gallium3D benchmarks of Mesa 9.2-devel earlier this week, for our first benchmarks this Saturday we have tests of Intel HD 4000 "Ivy Bridge" graphics when running Mesa 9.2-devel and compared to the Git branches of Mesa 9.1 and 9.0. Overall, there's some more open-source Intel graphics performance improvements to look forward to with this next Mesa release.
13 April 2013 - 3 Comments
Last year was the landmark announcement of an open-source NVIDIA Tegra graphics driver for Linux that was developed with the support of NVIDIA. In late November, NVIDIA published open-source 2D acceleration support for their newer ARM SoCs. Today, 3D support is being announced for the open-source NVIDIA Tegra graphics driver.
4 April 2013 - 5 Comments
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