Canon T6i has a 24.0MP APS-C (22.3 x 14.9 mm ) sized CMOS sensor and features DIGIC 6 processor. On the other hand, Canon 70D has a 20.0MP APS-C (22.5 x 15 mm ) sized CMOS sensor and features Digic 5+ processor.
Below you can see the T6i and 70D sensor size comparison.
Sensor Size and Resolution Comparison image of Canon T6i and Canon 70D Cameras
Canon T6i and Canon 70D have almost the same sensor size, so neither of them has any significant advantage over the other in terms of providing control over depth of field when used with the same focal length and aperture.
DxOMark Sensor Scores
Both Canon T6i and Canon 70D 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, T6i has scored 71, 3 points higher than 70D.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Canon T6i |
71 |
22.7 bits |
12.0 Evs |
919 ISO |
Canon 70D |
68 |
22.5 bits |
11.6 Evs |
926 ISO |