Ubuntu 26.04 is the latest version of the popular Linux distribution, and it arrives with a particular message for owners of Nvidia's top-tier graphics hardware: your GPU just got faster. Not spectacularly faster, but faster nonetheless.
Testing conducted by Phoronix and reported by Tom's Hardware shows that the new Ubuntu release delivers noticeable gaming performance improvements for the RTX 5090, Nvidia's flagship graphics card. Gaming performance improvements reached as high as 12%, depending on the title, though the average uplift across all tested games and benchmarks was more modest. Overall, Phoronix saw a 4.4% performance improvement with Ubuntu 26.04 compared to 25.10 on the RTX 5090.
The performance gains stem from software improvements rather than driver changes. The update primarily reflects a newer Linux kernel and updated GNOME 50 desktop stack, among other package updates. Ubuntu 26.04 is the first Ubuntu OS to feature Mesa 26, which comes with a load of performance optimisations and bug fixes, and notably features ray tracing optimisations for Vulkan.
The GNOME 50 desktop environment deserves particular attention here. GNOME 50 has seen a plethora of optimisations, upgrades, and fixes, and specifically comes with various workarounds that unlock extra performance from Nvidia's Linux 580-series drivers. These are not cosmetic tweaks; they represent targeted engineering aimed at extracting more performance from Nvidia hardware on Linux systems.
The testing used a Ryzen 9 9950X3D processor, RTX 5090, and RTX 5080 graphics card, with all tests conducted on the Nvidia 590.48.01 Linux driver. Games and benchmarks included Counter-Strike 2, Dirt Rally 2.0, Batman: Arkham Knight, Hitman 3, Strange Brigade, GravityMark, 3DMark Wild Life Extreme, Unigine Heaven 4.0, GPUScore: Breaking Limit 1.0, Tesseract, and Xonotic 0.8.6.
The results were uneven across different applications. Counter-Strike 2 was 8% faster with 26.04 on the RTX 5090, but achieved performance parity with 25.10 on the RTX 5080. Hitman 3 saw noteworthy gains for the RTX 5090 of 11% on Ubuntu 26.04, but just 4% on the RTX 5080. Some applications, like Strange Brigade, showed no improvement at all.
There is a catch. The performance improvements appear to only be beneficial on the fastest GPU hardware available, the RTX 5090, and other Nvidia cards, such as the RTX 5070 Ti and lower, will likely benefit even less from these optimisations. For Linux gamers running mid-range or older Nvidia cards, Ubuntu 26.04 offers little to celebrate.
This version of Ubuntu might be worth upgrading to if you are a dedicated Linux gamer, though the decision depends entirely on which graphics hardware you own. For the small subset of users with RTX 5090 cards, the gains are real. For everyone else, the upgrade is about other improvements Ubuntu 26.04 brings to the table.