Whats the better Wi-Fi "N" card for Latitude D820?

I have a Dell D820 and it has the ABG intel card now.
But the laptop has the 3rd antenna(not used now) and i want to buy a Intel Wireless "N" card.
I looked and there seems to be a few diffrent ones out there.
Intel 4965
Wi-Fi link 5100
Wi-Fi link 5300

Some have Dell part #'s and some are just OEM intel cards.

Whats the better card for the Dell D820?
Thanks

I'm thinking the 5100 is out because it only has 2 antenna connectors(my laptop has 3 antenna's.)

 

4965 is an older version, but it has 3 antennas.

The 5100 has 2;

The 5300 has 3, with theoretical bandwiths of 450MB/s (from Intel specs), but at home, even with my Xtreme N Dlink I only get to 130mbps, as with my old 4965AGN.

Anyway I have a 4965 AGN waiting to find a new home . PM me if interested. It definitely has 3 antennas so it would be able to connect to 300mbps. Just don't expect it with an intel card. Since N is still draft, you are still better with an all around solution for these speeds (same router and client card brand).