Nikon S7000 has a
16.0MP 1/2.3 (6.17 x 4.55 mm ) sized CMOS sensor . On the other hand, Canon N has a
12.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CMOS sensor and features Digic 5 processor.
Below you can see the S7000 and N sensor size comparison.
Nikon S7000 and Canon N have the same sensor sizes so they will provide same level of control over the depth of field when used with same focal length and aperture. On the other hand, since Canon N has 77% larger pixel area (3.12µm2 vs 1.76µm2) compared to Nikon S7000, it has larger pixel area to collect light hence potential to have less noise in low light / High ISO images.