Strange Landscape fps drop with Stat Gpu command 5.4.4

Hello, i was looking to best performing 8k landscape size through Editor with material on it.
to choose best possible framerates as begin of the map with DLSS enabled. Testing with “new game mode” 3440x1440 resolution.

and tried

  1. 8k 127 quads 4096 componnets
    A with command stat FPS iam getting 85 frames (11.5 gpu time)
    B) with command stat gpu it drops to 72 (13.5) gpu time

  2. 8k 255 quads 1x1 1024 components
    A) with stat fps 83 frames (12 framerate)
    B) doesnt drop with stat gpu command

The question is why does it happen and what kind of magic is here?Since the stat gpu doesnt see a problem with 4096 components an stat fps and stat unit says something different. Finally which Landscape i should use?
Video below:
RECORD

As you see starting with stat fps and get above 80 ,adding stat gpu and drops on the right of the screen.

  • OBS take additonal resources through record so it drops dditional 3 frames.
    All the best!