Dell 1601 vs. Intel AC 7260

Hello guys! 

Please, could somebody compare for me these two cards, Intel AC 7260 and Dell 1601? 
What are pros and cons of each one? I can hardly find any information on the internet. 

Now, in my Dell e7240 I have Intel AC 7260 card. But I think about replacing it by Dell 1601 to be able to use Dell wireless docking station Dock 5000.

I suppose that one con of replacing will be the loss of Intel's WiDi function. I haven't used it yet, but still it might be nice to be able to stream some photos or videos to a TV wirelessly. What are the other cons and pros? 

Thanks!