Both Sony RX1 and Nikon Z6 II have Full frame sized 24.0 MP resolution sensors so sensor size and resolution is not a differentiator between these two cameras.
Below you can see the RX1 and Z6 Mark II sensor size comparison.
Sensor Size and Resolution Comparison image of Sony RX1 and Nikon Z6 II Cameras
Sony RX1 and Nikon Z6 II have almost the same sensor size, so neither of them has any significant advantage over the other in terms of providing control over depth of field when used with the same focal length and aperture.
DxOMark Sensor Scores
DxOMark is a benchmark that scientifically assesses image quality of camera sensors. It scores camera sensors for color depth (DXO Portrait), dynamic range (DXO Landscape) and low-light sensitivity (DXO Sports), and also gives them an overall score. Sony RX1 and Nikon Z6 II sensors have been tested by DxO and the results show that Z6 Mark II has a better overall score of 94, 1 points higher compared to RX1's score of 93.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Sony RX1
93
25.1 bits
14.3 Evs
2534 ISO
Nikon Z6 II
94
25.0 bits
14.4 Evs
3303 ISO
Sensor size sets the circle of confusion, so it drives how much depth of field each
of these bodies gives you at a given aperture. You can calculate it exactly for the
Sony RX1
or the
Nikon Z6 II ,
including hyperfocal distance.
