Fujifilm S9900w has a 16.0MP (1/2. ) sized CMOS sensor . On the other hand, Sony T99 has a 14.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor and features Bionz processor.
Below you can see the S9900w and T99 sensor size comparison.
Sensor Size and Resolution Comparison image of Fujifilm S9900w and Sony T99 Cameras
As seen above, Sony T99 has a infx Larger sensor area than Fujifilm S9900w. Larger sensors give photographer more control on the depth of field and blurry background compared to smaller sensor when shot in same focal length and aperture.