Epic Games Brings Arm Accuracy Super Resolution (ASR) to Fortnite: A Leap for Mobile Gaming

Epic Games, in collaboration with Arm, is set to enhance the mobile gaming experience by integrating Arm Accuracy Super Resolution (ASR) into Fortnite. This open-source upscaling technology, based on AMD’s FidelityFX Super Resolution 2 (FSR 2), promises to deliver console-quality visuals and smoother performance on mobile devices, all while optimizing battery life and reducing GPU workload. The move marks a significant step toward bridging the gap between mobile and PC/console gaming experiences.

What is Arm Accuracy Super Resolution (ASR)?

Arm Accuracy Super Resolution (ASR) is a temporal upscaling technology tailored for low-power devices like smartphones and tablets. Unlike traditional spatial upscaling, which relies on a single frame, ASR uses multiple frames to generate higher-quality images from lower-resolution inputs. Built upon AMD’s open-source FSR 2, ASR is optimized for mobile GPUs, offering improved performance, reduced power consumption, and enhanced visual fidelity. Its open-source nature, licensed under the MIT license, allows developers to integrate and customize it with minimal effort.

Why Fortnite and ASR?

Fortnite, one of the world’s most popular battle royale games, is a natural fit for ASR integration due to its demanding graphics and widespread mobile player base. Epic Games is leveraging ASR through an Unreal Engine 5 plugin, ensuring seamless compatibility across Android and iOS platforms. According to Arm and Epic, this integration delivers several key benefits:

• Enhanced Visuals: Crisper details in high-motion scenes and distant objects, improving clarity without sacrificing performance.
• Improved Performance: Up to 30% higher frame rates, as demonstrated in Unreal Engine 5 tests, enabling smoother gameplay.
• Power Efficiency: Reduced GPU workload and memory bandwidth usage, leading to lower power consumption and longer battery life.
• Fewer Artifacts: Smoother texture loading with reduced visual artifacts, enhancing the overall gaming experience.

These improvements make Fortnite more accessible and visually appealing on a wide range of mobile devices, from budget smartphones to high-end tablets.

ASR’s Broader Impact on Mobile Gaming

ASR’s integration into Fortnite is just the beginning. As an open-source solution, ASR is available as a plugin for Unreal Engine 5 (versions 5.3, 5.4, and 5.5) on Epic’s Fab store, with a Unity plugin in development. This accessibility empowers developers to implement ASR in their own projects, potentially revolutionizing mobile gaming. Prominent studios like Enduring Games, Infold Games, and Sumo Digital have already adopted ASR, reporting improved performance without compromising visual quality.

Arm’s focus on mobile optimization ensures ASR outperforms traditional spatial upscalers like AMD FSR 1 and Qualcomm’s Game Super Resolution (GSR). By rendering frames at lower resolutions and upscaling them, ASR reduces thermal throttling and power consumption, addressing key challenges in mobile gaming.

Comparison of Upscaling Technologies

To understand ASR’s place in the upscaling landscape, here’s how it compares to other prominent technologies:

ASR’s open-source nature and mobile optimization give it an edge for developers targeting smartphones and tablets, while its FSR 2 foundation ensures high-quality upscaling compared to spatial solutions like GSR.

Implementation and Availability

Integrating ASR into Fortnite required no major changes to the game’s rendering architecture, thanks to the plug-and-play nature of the Unreal Engine 5 plugin. Developers can enable ASR, configure Temporal Anti-Aliasing (TAA), and verify integration using console commands, with comprehensive documentation and tutorials provided by Arm. While an exact release date for ASR in Fortnite hasn’t been announced, Epic and Arm will share more details at Unreal Fest in Orlando on June 4, 2025, via a livestreamed session.

The Future of Mobile Gaming with ASR

The collaboration between Epic Games and Arm highlights the growing importance of upscaling technologies in mobile gaming. By bringing console-quality visuals to smartphones, ASR enables developers to push graphical boundaries without draining device resources. As more games adopt ASR through Unreal Engine and Unity plugins, mobile players can expect smoother, more immersive experiences across a variety of titles.

Looking ahead, Arm plans to expand ASR’s compatibility to other platforms, potentially including laptops with Arm-based processors like those in Copilot+ PCs. This could further blur the line between mobile and traditional gaming platforms, making high-quality gaming more accessible than ever.

For more information on Arm ASR and its integration into Fortnite, visit Arm’s Newsroom or Unreal Engine’s official site. Stay tuned for updates as Epic Games and Arm continue to innovate in mobile gaming!