Some reviews are reporting less than stellar performance on the gigabit switch.
I've done some testing myself.
Using 2 linux pcs, with gigabit ethernet ports, I've put the first in receiving mode:
# nc -l 1999 >/dev/null
and then I started sending data from the second one:
# cat /dev/zero | nc 192.168.1.2 1999
The result is well over 110 MB/s:
Then, I've repeated the test using a straight cable connection between the two machines:
The result is pretty much the same, so the switch part of the WNDR3800 does not significantly impact performances.