Peak--likely as much as you can get (I've gotten up to 30mbps when a stream starts, which is my max); sustained--maybe around 3mbps, but probably closer to 2mbps (maybe a bit more for HD), so not all that much really. I've heard some HD streams hover around 7mbps, but I haven't seen that myself (which could just be my case). -- "...but ya doesn't hasta call me Johnson!"