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Assuming you've got a legitimate symmetrical gigabit ISP connection, is it possible to pick a NIC so bad it bottlenecks your connection?

Previously I had just used a R210 with it's built in Broadcom 5709 2 port for LAN and WAN. I realize these probably run through the DMI, so 4x PCIe 3.0 lanes so that should be fast enough.

I'm moving up to an R330 for my next build and I can't even find the built in NICs anywhere listed. I know it's another Broadcom chipset, maybe a 5720 but I only found one reference for that.

Is it better to split up the connections between two different NICs?

Should I follow a particular brand or chipset?

Would there be any benefit to using an SFP+ port to my core switch even if outbound is to be the bottleneck?

I see options sometimes like "Hardware packet offloading" are they worth using?

I currently have the following NICs laying around if one is preferable.

Intel 82571EB
Intel 82574L
Intel 82575GB
NetXen/Qlogic NX3031
Broadcom 5708
Broadcom 5709

Hey all,

I was trying a ZFS install on a Poweredge R330 with an H330 controller. I was having all kinds of issues but eventually I was able to get it installed following this thread.

https://forum.opnsense.org/index.php?topic=11059.msg50868#msg50868

1) press esc at the OPNsense welcome screen
2) issue command "set hw.mfi.mrsas_enable=1"
3) issue command "show" to confirm i see the option there
4) issue command "boot" system boots
5) I login as installer to initiate the install

I'm not familiar with how upgrades work with OPNSense and if the set parameter will stick? Should I have anything to be concerned about?

I assume since this is a FreeBSD issue there's no way to contribute a fix to OPNSense to resolve the issue for others?