Both Canon G3 X and Canon G9 X II have 1″ sized 20.0 MP resolution sensors so sensor size and resolution is not a differentiator between these two cameras.
Below you can see the G3 X and G9 X II sensor size comparison.
Canon G3 X and Canon G9 X II 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
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. Canon G3 X and Canon G9 X II sensors have been tested by DxO and the results show that G9 X II has a better overall score of 65, 2 points higher compared to G3 X's score of 63.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Canon G3 X |
63 |
21.4 bits |
12.3 Evs |
521 ISO |
Canon G9 X II |
65 |
21.9 bits |
12.5 Evs |
522 ISO |