Highest ugrids uExterior Cell Buffer and uInterior Cell Buffer

[joseph.webster]

What is the highest effective number you can go with these?

[hawkeye]

There is no single value as if you use high settings in one settings category then that may reduce the ugrids setting you can use to get stay at 60 fps or whatever fps you want.

www.geforce.com/whats-new/guides/fallout-4-graphics-performance-and-tweaking-guide

It also depends on your hardware. The higher up this chart probably the higher ugrids you can use. And maybe gpu too, depending on resolution and graphics effects.

https://www.cpubenchmark.net/singleThread.html

So do a clean save that you can return to safely and try different settings.

[ZarahNeander]

Messing with ugrid is a surefire way tó make your game crash. More later than sooner, so that you cant reproduce it. Believe me (or not), I learned it the hard way. It's not only gpu and cpu, also papyrus and and and.

Just dont..