Nikon S9300 has a
16.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized BSI-CMOS sensor . On the other hand, Panasonic FX580 has a
12.0MP 1/2.3-inch (6.08 x 4.56 mm ) sized CCD sensor .
Below you can see the S9300 and FX580 sensor size comparison.
Sensor Size and Resolution Comparison image of Nikon S9300 and Panasonic FX580 Cameras
Nikon S9300 and Panasonic FX580 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.
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
Nikon S9300
or the
Panasonic FX580 ,
including hyperfocal distance.