I have a 2013 Dell XPS13. I'm about to trial a BT HH5 which has 802.11ac and 5 gigabits ports. My HTC One has a broadcom ac chip. My Dell 6235 does dual band 802.11n. My question is should I upgrade the wifi card. I know that the wifi card and the SSD are the only parts of the laptop that can be upgraded. Everything else is soldered or integrated onto the motherboard.