Sony RX10 has a
20.0MP 1-inch (13.2 x 8.8 mm ) sized BSI-CMOS sensor and features Bionz X processor. On the other hand, Sony A6400 has a
24.0MP APS-C (23.5 x 15.6 mm ) sized CMOS sensor and features Bionz X processor.
Below you can see the RX10 and A6400 sensor size comparison.
As seen above, Sony A6400 has a 3.2x Larger sensor area than Sony RX10. Larger sensors give photographer more control on the depth of field and blurry background compared to smaller sensor when shot in 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. Sony RX10 and Sony A6400 sensors have been tested by DxO and the results show that A6400 has a better overall score of 83, 14 points higher compared to RX10's score of 69.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Sony RX10 |
69 |
22.9 bits |
12.6 Evs |
474 ISO |
Sony A6400 |
83 |
24.0 bits |
13.6 Evs |
1431 ISO |