Sick of WiFi, moving to GbE - Need help with specifics

[Droidbot]

Hey all, 

 

I live with my parents, and as such I share a router with them. For around 6 months I've been using 300N WiFi since my room was across a corridor and I didn't want to block it with cables. 

I have since switched rooms, and I finally decided I want an Ethernet setup for myself. Now, the max I am allowed to put into my room is 3 cables (1 TV, 2 Ethernet). 

 

I was thinking of a dedicated Gigabit line to my PC, and then a separate Gigabit line into a switch hooked up to my Xbox and home server (once I get it back up of course)

 

Now, how much would the switch slow down the network to the Xbox and server? I'm boarding them off to a switch because I'm only gonna be Plex streaming on the Xbox and encoding/torrenting on the server. 

 

In case this was confusing: 

 

Thanks  

[Samfisher]

Unless you frequently hit the gigabit speed limit for anything, a single cable from your parents room to a switch in your room is more than enough, since you're rarely be using all 3 devices at full bandwidth all the time anyway.