Both Sony RX100 II and Canon G5 X have 20.0 MP resolution sensors but Sony RX100 II's sensor is 1-inch (13.2 x 8.8 mm ) and Canon G5 X's sensor is 1″ (13.2 x 8.8 mm ).
Since Canon G5 X's has a larger sensor area with the same resolution, this means that it also has a larger pixel area hence better light collecting capacity for a given aperture compared to Sony RX100 II.
Below you can see the RX100 II and G5 X sensor size comparison.
Sony RX100 II and Canon G5 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
Both Sony RX100 II and Canon G5 X 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, RX100 II has scored 67, 5 points higher than G5 X.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Sony RX100 II |
67 |
22.5 bits |
12.4 Evs |
483 ISO |
Canon G5 X |
62 |
21.4 bits |
12.3 Evs |
471 ISO |