Both Canon G5 X and Canon G7 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 G7 X sensor size comparison.
Sensor Size and Resolution Comparison image of Canon G5 X and Canon G7 X Cameras
Canon G5 X and Canon G7 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 G7 X sensors have been tested by DxO and the results show that G7 X has a better overall score of 71, 9 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 G7 X
71
23.0 bits
12.7 Evs
556 ISO
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
Canon G5 X
or the
Canon G7 X ,
including hyperfocal distance.
