Sony's 2011 Cyber-shot lineup has three compact megazooms in it: the low-end H70, and, snuggled in between, the HX7V.,
The HX7V is essentially a beefed-up version of the H70, featuring the same lens and body size, but backed by a high-speed, 16-megapixel Exmor R backside-illuminated (BSI) CMOS sensor instead of a slower CCD sensor. That sensor among other things gives the HX7V many more shooting options, such as a Background Defocus mode to simulate a shallow depth of field, and creating high-resolution panoramas. And it does most everything quickly.
Now, as for photo quality, it really comes down to what you're expecting.