Which dual band card to get?

Hello, I'm planning on purchasing a new laptop very soon. The default wifi card is a single band 802.11 B/G/N card, but I want to upgrade to a dual band card so that I can connect to 5Ghz in the future. The options are Intel 6235, Intel 7260AC, and Killer 1202 cards. I was going to go with the 7260 to future proof my laptop, but I've read about the numerous connectivity problems on 2.4Ghz so I've been having second thoughts. I'm living in an area with many 2.4Ghz devices in range.
I would like to go with a card that has maximum stability in terms of connectivity and latency (intend to game over wifi). Any suggestions on which one I should opt with? Any help is much appreciated, as I've never upgraded a network card before.

 

What router do you have?

 

I have a Belkin N750 DB router at home, but right now I am mostly using access points at college on 2.4Ghz, which has a lot of other wireless devices in range.

 

I'd go for 6200/6205.

Intel's 7260 doesn't work correctly on 2.4GHz band and Killer cards are overpriced.

That said if you are going to be gaming while using college 2.4GHz APs your performance will not really be related to the card as much as the number of people using the AP at that time and total network traffic.

 

Well actually, I will be connected to my own (cheap) router via 2.4Ghz so it's a matter of interference from other signals. But it's too much hassle for me to test drivers all day, so I'll stay away from the 7260 for now.
Thanks for the help!

 

I did test the drivers all day and it didn't help There are no working drivers for 7260 on 2.4GHz.

If you are going to use your own 2.4GHz AP - that's one more argument for 6200/6205.

Killer prioritizes UDP packets over TCP packets in order to reduce latency but it does so on your computer. So you would see improvement if you were gaming and downloading something in the background but not if you would be just gaming.