I can't answer this question, but if you want to update, you can get 2.4-3.0 G Pentium 4s for about $100 a piece. I did this last year and was pleased. Most of the ones I bought (refurbed) had gigabit connectors and this made a bigger difference when I updated the routers. I run this as a peer to peer.
I am curious to the answer for your question tho.
