Nanite Performance is Not Better than Overdraw Focused LODs [TEST RESULTS]. Epic's Documentation is Dangering Optimization.

Weird experience, opened this project with a fresh install. Took out all lights except directional and point light, everything on low except shadows where on high.

Default overdraw

6.3ms without the overdraw view.

I “enable” Nanite on all the static meshes and end up with 3.6ms
I say enable, because look at the top, I have nanite overview on and nothing is showing
That happens when the visibility buffer and other Nanite systems aren’t running.

Here was the overdraw after “enabling” nanite.
When Nanite is on properly, overdraw view only shows solid colors and that is not the case here:

Then I turned on SM6 and re did everything:

No nanite 6.3ms


Nanite now works as intended and the final cost is 9.8ms-.10ms of editor cost of turning on Nanite

These are the results of UE5.4, my last test was in 5.3
In this test, Nanite added 3.32ms of overhead at 1080p on a desktop 12GB 3060.

I guess even with the really bad overdraw, enabling Nanite didn’t even help that much.