AMD FSR 4.1.2 Is Now Running on Intel Arc GPUs With XMX Acceleration, and Early Results Look Impressive
The PC modding community has delivered another major win for graphics enthusiasts. AMD’s latest FSR 4.1.2 upscaling models have been adapted to run on Intel Arc graphics cards with hardware acceleration through Intel’s dedicated XMX cores. Even more interesting, early testing from users suggests that this modified implementation may offer better image quality than Intel’s own XeSS Super Resolution in some games, while keeping performance costs nearly identical.
The work comes from the OptiScaler modding community, which has been experimenting with modified FSR 4 INT8 DLL files optimized for Intel’s Xe Matrix Extensions. AMD’s FSR 4 models were already usable on unsupported GPUs through OptiScaler, but running them through Intel’s dedicated AI hardware is a big step forward. Instead of relying mainly on shader-based processing, the XMX path allows the upscaler to run far more efficiently.
This is especially exciting for Intel Arc GPU owners because it gives them another high-quality upscaling option beyond XeSS. If the results continue to hold up across more games, FSR 4.1.2 could become a very attractive alternative for players who want sharper image reconstruction without a major performance penalty.
A major reason this development is gaining attention is AMD’s FSR 4.1.2 Lite model. This smaller INT8 neural upscaling model is designed to reduce computational load while preserving much of the image quality of the full FSR 4 implementation. It is primarily aimed at lower-power hardware such as mobile chips, handheld gaming systems, APUs, and selected Ryzen AI or Z-series platforms.
That makes it a strong fit for less powerful GPUs and portable gaming devices, but community testing shows that it also works extremely well on Intel Arc desktop graphics cards when accelerated by XMX cores.
In one set of user benchmarks, an Intel Arc B580 was tested in Clair Obscur: Expedition 33 at 1080p using the Balanced upscaling preset. The XMX-accelerated FSR 4.1.2 Lite model produced an upscaling time of roughly 0.59 ms, almost identical to Intel XeSS Super Resolution at around 0.58 ms. The full FSR 4.1.2 model came in at about 0.85 ms, which is still very efficient.
Reported upscaling times on Intel Arc B580 at 1080p Balanced:
FSR 4.1.2 Lite XMX: around 0.59 ms
FSR 4.1.2 XMX: around 0.85 ms
FSR 4.0.2 XMX: around 0.87 ms
FSR 4.0.2 Fixed XMX: around 0.88 ms
Intel XeSS SR XMX: around 0.58 ms
These results show how close FSR 4.1.2 Lite can get to XeSS in terms of performance cost, while some testers claim AMD’s model delivers a noticeably cleaner and more stable image.
More testing from the OptiScaler community also highlights the strength of Intel’s XMX hardware. On an Intel Arc A770 running The Witcher 3: Wild Hunt — Remastered at 1080p with the Quality preset, FSR 4.1.2 Lite reportedly delivered slightly higher average performance than native XeSS Super Resolution.
Reported Intel Arc A770 results at 1080p Quality:
FSR 4.1.2 Lite XMX: 101.5 FPS, 0.75 ms upscaling time
FSR 4.1.2 XMX: 98.6 FPS, 1.11 ms upscaling time
FSR 4.0.2 XMX: 98.0 FPS, 1.17 ms upscaling time
FSR 4.0.2 XMX Modified: 97.2 FPS, 1.18 ms upscaling time
Intel XeSS SR XMX: 101.1 FPS, 0.84 ms upscaling time
The difference in frame rate is small, but the upscaling time is notable. FSR 4.1.2 Lite not only matched XeSS closely, it slightly beat it in this particular test. The full FSR 4.1.2 model was heavier, but still remained efficient enough to be practical.
The biggest talking point, however, is not just performance. It is image quality.
Several community testers claim that FSR 4.1.2 produces a more visually appealing image than Intel’s latest XeSS Super Resolution implementation, even when XeSS is running natively on XMX hardware. Reports mention better image reconstruction, improved detail retention, and a cleaner presentation in certain scenes.
The Lite model is especially promising because it appears to retain much of the visual quality of the full FSR 4.1.2 model while requiring significantly less processing power. For Intel Arc users who are not satisfied with XeSS image quality in some games, this could become an important option.
One user testing the mod on an Intel-powered handheld said that FSR 4.1.2 Lite and XeSS delivered nearly identical frame rates, but AMD’s upscaling model produced a noticeably better image. Another Intel Arc A770 owner demonstrated Assassin’s Creed Odyssey running at 4K using FSR 4.1.2 XMX alongside Intel XeSS Frame Generation, reportedly reaching 120 FPS with 4x frame generation enabled. That number includes generated frames, so it should not be confused with native rendering performance, but it still shows how flexible these technologies can be when combined.
Still, this is not a polished plug-and-play solution yet. The implementation remains experimental, and compatibility can vary significantly from one game to another. Some users have reported crashes in certain titles, including Crimson Desert. The current XMX-optimized FSR 4 path also depends mainly on DirectX 12, while support for other graphics APIs appears more limited for now.
The image quality claims also need broader testing. Community impressions are valuable, but proper comparisons across more games, resolutions, motion-heavy scenes, and upscaling presets will be needed before firm conclusions can be made.
Even with those limitations, this is excellent news for Intel Arc owners. It shows that Intel’s XMX cores are capable of handling advanced neural upscaling workloads beyond XeSS, and it gives gamers more choice. Instead of being locked into one vendor’s upscaling solution, users may soon be able to pick the model that looks best and performs best for each game.
For now, FSR 4.1.2 Lite appears to be the standout option. It offers near-XeSS performance costs on Intel Arc hardware while potentially delivering stronger image quality. If compatibility improves and the OptiScaler community continues refining the implementation, AMD’s neural upscaling technology could become a surprisingly powerful tool for Intel GPU users.
The bigger picture is clear: GPU upscaling is becoming more flexible, more open, and more community-driven. Intel Arc cards may not officially support AMD FSR 4 in this way, but modders are proving that the hardware is capable of much more than expected. For PC gamers, that means more ways to improve performance, sharpen visuals, and extend the value of their graphics hardware.
