On Jul 7, 2014, at 11:35 PM, Emmanuel Dreyfus <manu%netbsd.org@localhost> wrote: > ixg0: PCI Express Bus: Speed 2.5Gb/s Width x8 > > Is it 2.5 Gb/s maximum (in which case I hit that limit), or 2.5x8 = 20 Gb/s > in which case I still have room for improvment. The latter.