Sony TX7 has a 10.0MP 1/2.4" (6.104 x 4.578 mm ) sized BSI-CMOS sensor and features Bionz processor. On the other hand, Fujifilm XP120 has a 16.0MP 1/2.3" (6.17 x 4.55 mm ) sized BSI-CMOS sensor .
Fujifilm XP120's sensor provides 6MP more than Sony TX7's sensor, which gives a significant advantage in real life. You can print your images larger or crop more freely.
On the other hand, please keep in mind that Max sensor resolution is not the only determinant of resolving power. Factors such as the optical elements, low pass filter, pixel size and sensor technology also affects the final resolution of the captured image.
Below you can see the TX7 and XP120 sensor size comparison.
Sony TX7 and Fujifilm XP120 have almost the same sensor size so none of them has any significant advantage over other in providing control over depth of field when used with same focal length and aperture.