Description

It seems that GPU usage in UE5 has dramatically increased in comparison to 4.26. A simple First Person Template with a Landscape created with default settings and a few hills sculpted onto it, causes the GPU usage to climb to the 90-99% range in UE5. In 4.26, a similar scene has the GPU usage at around 40-50%.

This was tested with an Nvidia RTX 2080 Super. I would expect the GPU usage to increase, considering that the system requirements have increased, but maxing out the GPU of a relatively high end graphics card in such a simple scene seems like it might be unintended.

Steps to Reproduce
  1. Open a First Person Template project in UE5
  2. Open the Windows Task Manager
  3. Open the Performance tab
  4. Observe the GPU usage when UE5 is focused

RESULT:

The GPU usage is in the high 90s

EXPECTED:

GPU usage wouldn't be so dramatic increased in comparison to 4.26

Have Comments or More Details?

There's no existing public thread on this issue, so head over to AnswerHub just mention UE-120212 in the post.

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Unresolved
ComponentRendering
Affects Versions5.0-early access 2
Target Fix5.0
CreatedJul 23, 2021
UpdatedJul 29, 2021