I keep rubbing my eye's just to to see if I'm wrong, but all it seems to me is, is card number 1 is $20usd cheaper!
But you might want to get a second opinion, as I've just got in from the pub! 😉
Also, it's seems strange that you have to wait 4 weeks for Apple to ship it to you!
I upgraded to this card when I got my new machine last week, and it came within 6 days, already installed!