Ubuntu 25.10 amd64v3 Benchmarks: Some Minor & Rare Performance Advantages For Desktop Workloads
The GNU Octave performance for that open-source MATLAB alternative didn't see any change to its performance after the amd64v3 packages were loaded.
The biggest change found from this testing was the RawTherapee RAW photography software performing significantly faster now when the amd64v3 architecture variant was enabled compared to the stock Ubuntu 25.10 installation.
Meanwhile the librsvg SVG vector graphics library found with Ubuntu 25.10 was just a ever so slight benefit.
In the vast majority of the graphics benchmarks tested, there wasn't any observed performance benefit of using Ubuntu 25.10 amd64v3.
The big exception to the graphics performance was finding Unvanquished performing much better on amd64v3. This is quite interesting as the standard Unvanquished binaries shipped by the project were used each time. And this benefit wasn't observed in the other tested game/graphics benchmarks. Perhaps some odd corner-case with the Mesa build or one of the other OS libraries was really helping out Unvanquished at the higher quality settings for the amd64v3 run.
In other gaming and workstation graphics benchmarks, the Ubuntu 25.10 amd64v3 OS packages didn't provide any measurable difference.
There were some rare performance differences when using the amd64v3 architecture variant on Ubuntu 25.10 but nothing game-changing overall. The Ubuntu Server 25.10 amd64v3 packages are currently being tested as potentially more impactful there. It will also be interesting to see how complete the amd64v3 build-out becomes for Ubuntu 26.04 LTS and what other performance optimizations may be pursued by Canonical for this upcoming Long Term Support release.
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