Samsung NX3000 has a
20.0MP APS-C (23.5 x 15.7 mm ) sized CMOS sensor . On the other hand, Sony A6100 has a
24.0MP APS-C (23.5 x 15.6 mm ) sized CMOS sensor and features Bionz X processor.
Below you can see the NX3000 and A6100 sensor size comparison.
Sensor Size and Resolution Comparison image of Samsung NX3000 and Sony A6100 Cameras
Samsung NX3000 and Sony A6100 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.
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
Samsung NX3000
or the
Sony A6100 ,
including hyperfocal distance.