Intel Arc B390 iGPU Picks Up 12% Gaming Gains on Linux 7.2

The Linux Gap Narrows for Arc B390

Intel integrated graphics and Linux have had a complicated relationship. iGPUs that run just fine on Windows have historically trailed behind on Linux, sometimes by a frustrating margin, and the Arc B390 was no exception when it first landed in next-gen gaming handhelds. But according to recent Phoronix benchmarks highlighted by TechPowerUp, Linux 7.2 is starting to close that gap in a meaningful way.

The headline number is a 12% frame rate improvement in certain tests. That comes courtesy of better support baked into the Intel Xe Linux kernel driver, and it applies across both OpenGL and Vulkan rendering workloads. CPU performance stayed essentially flat throughout the testing, so the gains are squarely on the graphics side.

What the Benchmarks Actually Show

The results vary depending on the workload, which is pretty much always the case with driver-level improvements. On one end of the spectrum, GravityMark 1.87’s ray tracing benchmark barely moved, showing just a 1% improvement under the new drivers. Not nothing, but hardly a reason to update your kernel.

The more encouraging results come from games with native Linux builds. Unvanquished 0.56.1, an open-source FPS and RTS hybrid with a native Linux version, put up a 12% FPS increase at 1920x1200 resolution on medium settings. Stepping up to high quality trimmed that gain down to 6%, which suggests the driver improvements have more room to breathe when the workload is not pushing the GPU to its ceiling.

Xonotic told a similar story. At 1920x1200 on low settings, performance was up 5%. At ultra settings the improvement grew to 6.7%, and at ultimate settings it came in at 6.2%. None of these numbers are transformative on their own, but for a handheld gaming device where every frame matters and the hardware is already doing a lot of work, consistent 5 to 12% gains across different games and settings represent real, tangible progress.

Battery Life Should Stay Intact

One of the quiet wins buried in these benchmarks is the power consumption data. SoC power draw remained identical between driver versions. For a chip that shows up primarily in handheld PCs and laptops, that is a genuinely important detail. Performance gains that came at the cost of battery life would be a difficult trade-off for portable gaming. The fact that these improvements appear to be purely efficiency-driven, rather than coming from pushing the hardware harder, is good news for users running the B390 in a handheld form factor.

As TechPowerUp notes, these better Xe kernel drivers still need to make their way into mainstream and gaming-focused Linux distributions before most users will see the benefit. Phoronix benchmarks tend to run on fairly current kernel builds, so there may be some waiting involved for people on more stable or conservative distros. But the trajectory is positive, and the B390’s growing presence in the handheld gaming space means there is real demand for exactly this kind of driver-level work on Linux.