TurboQAM with Intel WiFi-Card?

Hi,

now I got one of the new AC-Routers and an Intel 7260AC-Card in my Laptop. Problem is, that 5ghz is not working well 2 rooms away from the router. 2,4Ghz works fine. Now the new AC Routers all have this new Broadcom-Chip with TurboQAM, that increases the speed of the 2,4Ghz network. Will Intel update their drivers to use this TurboQAM or do I have to buy a Broadcom-Chip?

Greets...

P.S.: Sorry for my bad english...