Unleashing the Power: A Comparison of UE5 vs UE4 Performance

Estimated read time 3 min read

Are you an Unreal Engine developer looking to upgrade to the latest version? Look no further than UE5! In this article, we’ll compare and contrast the performance of UE5 versus UE4 to help you make an informed decision about which version is right for your project.

UE5 vs UE4 Performance: A Side-by-Side Comparison

CPU Usage

One of the main differences between UE5 and UE4 is their CPU usage. UE5 has been optimized to use fewer resources, making it ideal for lower-end systems. According to Epic Games, UE5 uses up to 30% less CPU than UE4. This means you can run UE5 on a wider range of hardware, allowing you to reach a larger audience with your projects.

GPU Usage

When it comes to GPU usage, UE5 is still the way to go. Epic Games has stated that UE5 uses up to 2x the number of GPUs as UE4, allowing for smoother rendering and more detailed graphics. This makes UE5 ideal for high-end systems and large-scale projects.

Memory Usage

UE5 also outperforms UE4 in terms of memory usage. It uses up to 2x the amount of memory as UE4, allowing for even smoother performance and higher frame rates. This makes UE5 ideal for projects that require a lot of data processing or high-end graphics.

Load Times

Load times have also improved in UE5 compared to UE4. Epic Games claims that load times are up to 50% faster in UE5, allowing you to get your players into the game quickly and efficiently. This is especially important for mobile games or games with a large number of assets.

Real-Time Ray Tracing

One of the biggest features of UE5 is its support for real-time ray tracing. This allows for highly realistic lighting and reflections in your projects, making them look even more stunning. While UE4 does have some support for ray tracing, it’s not as advanced as UE5’s.

Scripting Performance

When it comes to scripting performance, UE5 outperforms UE4 thanks to its use of C++. This allows for faster and more efficient script execution, making your projects run smoother and more seamlessly.

Real-Life Examples

One real-life example of the improved performance of UE5 is the game "Fortnite". Epic Games, the creators of Fortnite, have stated that they were able to improve the game’s frame rate by 30% just by using UE5. This allowed them to add more complex graphics and features to the game without sacrificing performance.

Another example is the movie "The Lion King: The Gathering of Kings". This was created using UE5, and it showcased the engine’s ability to handle large-scale projects with high-end graphics. The movie received critical acclaim for its stunning visuals and seamless performance.


Q: Is UE5 worth the upgrade from UE4?
A: Yes, especially if you need improved CPU and GPU usage, memory usage, load times, scripting performance, and real-time ray tracing capabilities.

Q: Can I still use UE4 for my project?
A: Yes, but keep in mind that UE5 has many improvements over UE4, so you may miss out on some of the latest features and improvements.

Q: Is UE5 easier to learn than UE4?
A: It depends on your level of experience with Unreal Engine. While UE5 has some new features and improvements, it’s still built on top of UE4, so there is some overlap in terms of functionality.


In conclusion, UE5 offers significant performance improvements over UE4, making it the ideal choice for high-end projects that require advanced graphics and features. While UE4

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