If you look at the D3200, the Sony NEX-7, the D800, you'll see that the
images from them at low ISO are soft. But, the D800E doesn't look soft, at
least based on another comparison I saw.
Compare the D7000 to the D3200. Look at the paperclips in the scene at 200
ISO. Notice how soft the D3200 and the Sony NEX-7 images are? Notice how
sharp the D7000 image is by comparison? Same with the Olympus OM-D, it is
sharp. Resolution is better on the 24mp cameras, but the images are not
sharp-looking.

http://www.dpreview.com/previews/nikond3200/6