I did a performance test on my pc to compare the number of poly that 2.83.0 blender can support versus the 2.91 Alpha before crashing. It’s incredible :
I subdivided the monkey head to get 2,048,000 faces (edit mode). I then duplicated it (Shift + D) over and over again in object mode. Result: the polygon number is multiplied by 2,2.
If other people have other tests (similar or different, do not hesitate to communicate them).
To avoid mistakes in the procedure, you create the scene, enter Edit mode for your heavy object, you select a vertex. You save the scene in that state in Edit mode. Then with only one Blender instance open you test with that saved scene in Blender 2.83 and 2.91 by measuring the fps (play animation) while you continuously Grab/move the selected vertex for at least 15 seconds.
Edit:
What I said understanding that you wanted to test performance in Edit mode.
No, I’ve subdivised the mesh in edit mode and duplicate it in object mode with Shift+D. I duplicated the mesh until Blender crashed.
(sorry for my English, I will edit the post to add some corrections)
If you have a better way to do this kind of testing, you are welcome.
