Bit-tech got hold of an AMD 880G motherboard and it doesn't sound like they were impressed.
The board features AMD's new SB850 southbridge, which debuted on 890GX
boards a few weeks back. It supports SATA 6Gbps and many boards will
feature USB 3.0 support as well.
The 880G northbridge doesn't appear to be as advanced. It is still
based on the RV620 IGP and for some reason it features just a single
digital output. Bit-tech notes that the core is manufactured in 55nm,
so power consumption will probably remain thesame as on the 785G.
Basically it appears AMD pulled an Nvidia with the 880G, as it merely
rebranded an old graphics core and added a new southbridge with SATA
6Gbps support.
More
here.