Both Canon G5 X and Canon G3 X 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 G5 X and G3 X sensor size comparison.
Canon G5 X and Canon G3 X 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 G5 X and Canon G3 X sensors have been tested by DxO and the results show that G3 X has a better overall score of 63, 1 points higher compared to G5 X's score of 62.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Canon G5 X |
62 |
21.4 bits |
12.3 Evs |
471 ISO |
Canon G3 X |
63 |
21.4 bits |
12.3 Evs |
521 ISO |