Embedded ports vs Quad NIC ports for bridging
I've been reading on these forums that using the ports of a quad-port NIC as bridged devices is a no-no with pfSense, as it degrades performance. How about the ports of an embedded solution, like the SG-4860 or this 3rd party product http://amzn.com/B019Z8T9J0?
They are router ports, not switch ports. Just get a switch.
Bridging any ports, on the same card or not, will require traffic to go through the PCI-e bus, through the CPU, and then back out. Unless you're trying to make a filtering bridge, buy a switch. Even then, you may be better off with a switch and simple ACLs.