Here's some basic info about the RD790 chipset:
1 It has HTX support. 2 PCI-E 2.0 compatible, 52 PCI-E lines 3 HTT 3.0 compatible 4 Internet Teaming, Dual Gigabit Ethernet 5 The RD790 Chipset has its own cache, it is has 16KB of it, not much info out of the files i got but, should give more bandwidth and also lower latencies