Canon 80D achieved an overall DxOmark sensor score of 79 points. After the test, the DxOmark conclusion is that the camera has improved low ISO noise and a more useful dynamic range at and close to base ISO over its siblings (EOS 760/750D, EOS 7D Mk II and EOS 70D), there scores are comparatively lower than Canon 80D.
Canon 80D has implemented a new kind of sensor design that completely improved the SNR, along with attendant increases in color depth, dynamic range, and low-light ISO.
However, Canon 80D scored better than its siblings, but it couldn’t outperform Sony a6300 and the Nikon D7200 in cases of dynamic ranges and ISOs as well.
The Canon EOS 80D has improved low ISO noise and a more useful dynamic range at and close to base ISO over its siblings. However, class-leading sensors such as those found in the Sony a6300 and the Nikon D7200 still have more usable dynamic ranges, and that’s not just at base, but at high ISOs as well.
While the results from the 80D on DR should appeal to landscape photographers who routinely adopt the base ISO setting, it’s worthwhile to remember that Canon probably had other priorities in mind when developing this sensor. While there may have been some trade-offs in DR at high ISOs, noise levels aren’t far behind the class leaders, and the Dual Pixel AF mode in live view and video looks promising for video and certain still applications. Lowering the noise floor at base while increasing pixel count remains an impressive feat, and ultimately the Canon EOS 80D sensor offers a pretty decent performance overall.
On the other side, Nikon D500 sensor scored is 83, which is less than the expectations, as said by DxOMark. However, everything including Color depth, dynamic range and low-light ISO measurements are all excellent and except 7D mark II the D500 couldn’t outperform its own D7200, D5500, D5200, D7100
Detractors might cite the D500’s lower pixel count over the Nikon D7200 as a step backwards, however, the new 20.9-Mpix sensor has enabled a phenomenal 10 fps maximum capture rate along with a decent-size 200 RAW (14-bit lossless) frame buffer — one of the main weaknesses of the D7200. Sensor performance is a real highlight, with excellent dynamic range at both low and high ISOs, and with noise levels that are not only on par with the D7200, but lower than the two main rivals. As a camera for sports and wildlife, the Nikon D500 is a solid choice, and although it is one of the most expensive crop cameras on the market today, it is also one of the most capable.