Nikon D3400 has a 24.0MP APS-C (23.5 x 15.6 mm ) sized CMOS sensor and features Expeed 4 processor. On the other hand, Sony RX100 III has a 20.0MP 1″ (13.2 x 8.8 mm ) sized BSI-CMOS sensor and features Bionz X processor.
Another difference between these two cameras is that Nikon D3400's sensor lacks anti-alias (Low-Pass) filter. Removing anti-alias filter increases the sharpness and level of detail but at the same time, it increases the chance of moiré occurring in certain scenes.
Below you can see the D3400 and RX100 III sensor size comparison.
Sensor Size and Resolution Comparison image of Nikon D3400 and Sony RX100 III Cameras
As seen above, Nikon D3400 has a 3.2x Larger sensor area than Sony RX100 III. Larger sensors give photographer more control on the depth of field and blurry background compared to smaller sensor when shot in same focal length and aperture.
DxOMark Sensor Scores
Both Nikon D3400 and Sony RX100 III sensors have been tested by DxoMark. DxoMark 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. Of the two cameras that we are comparing, D3400 has scored 86, 19 points higher than RX100 III.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Nikon D3400 |
86 |
24.8 bits |
13.9 Evs |
1192 ISO |
Sony RX100 III |
67 |
22.4 bits |
12.3 Evs |
495 ISO |