Sensor Size
Generally speaking, the larger the sensor and thus each pixel – the better the image quality. For a given resolution of a sensor, when you increase sensor size each pixel increases in size as well. Larger pixels capture more light so they don’t need to be amplified as much in order to get a proper exposure. With less amplification there is less noise, therefore there is less need or no need at all for software noise filtration. With less noise/noise filtering there is more detail, clarity and colors in the image.
