[максимус]

Приветы надеюсь поймете разницу скоростях .
N types will have transfer speeds upto 300Mbps(typical 80Mbps) while G has max of 54Mbps(typical 20Mbps). So if you only browse internet G type is enough but suppose if u transfer files from on laptop to another using wifi on 'G' you'll get 1-2 MB/sec (bytes)and on 'N' you'll get around 10MB/sec.



But remember you also need to have N capable wifi adapter (mostly you should have it unless it's in an old laptop) else it'll run in 'G' mode only.