The D7000 has a few more megapixels and probably has better dynamic range and noise characteristics -- I don't know.
Noise characteristics of the D7000 are from another world compared to those of the classical 5D. Specially at low ISO, the dynamic range of the D7000 outperforms the 5D, even the 5D2. When light becomes scarce and one needs to push ISO to expose properly, both sensors perform similarly having the same DR at ISO1600.
Here a comparision including 5D and K5 (same sensor as D7000):
And here a comparision 5D vs K5 (same sensor as D7000) in 2 different real situations:HIGH DYNAMIC RANGE AT LOW ISO
(typ. tripod applications)LOW LIGHT CONDITIONS
(typ. high ISO applications)
These confirm the K5 (D7000) being much better in DR at low ISO, but similar at high ISO.