I used to have the old HG630 connecting 2 computers via wifi at 130Mbps ... streaming an SD video never jitters, streaming Full HD Video, might have a very long pause after 1 hour, sometimes resuming sometimes can't resume.
So I asked about N/ac wifi routers and someone said the HG659 is so bad don't get one ... and I said it can't be that bad, think of it as a Mitsubishi vs BMW both are ok ...
HG659
2.4GHz - b/g/n "May be unable to negotiate to 40M" so at N speeds it connects at 150Mbps
5GHz - N/AC the N connects at 300Mbps, the AC connects at 800Mbps (could be a limitation of my laptop)
so both computers connected, one at 300 one at 800Mbps, with some wood (definitely no bricks or concrete) between them. The only electronic thing that is on is a heat pump and a Tivo, and some chargers.
streaming anything it pauses for 2 seconds every 5 minutes without fail
tried to transfer an 8gb file (between 2 SSDs) max speed is 10MBps (ie 80Mbps) ....
yikes! ;p
Will do more testing ....