Both Hasselblad X1D II and Hasselblad X1D have Medium format sized 51.0 MP resolution sensors so sensor size and resolution is not a differentiator between these two cameras.
Below you can see the X1D II 50C and X1D sensor size comparison.
Sensor Size and Resolution Comparison image of Hasselblad X1D II and Hasselblad X1D Cameras
Hasselblad X1D II and Hasselblad X1D have the same sensor sizes so they will provide same level of control over the depth of field when used with same focal length and aperture.
DxOMark Sensor Scores
At Camera Decision, we also look at Dxo Mark sensors when available as we think it is a good indicator of image quality.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Hasselblad X1D II
102
26.2 bits
14.8 Evs
4489 ISO
Hasselblad X1D
102
26.2 bits
14.8 Evs
4489 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
Hasselblad X1D II
or the
Hasselblad X1D ,
including hyperfocal distance.