How does the killer networking work?

[Nicolas]

So what I understand is that it basically prioritizes gaming applications to get better pings, but some guy told me that if you had a PC with killer technology, it would suck up all the bandwidth it could from the router to have faster connection, but it would slow way down the connection on the other computers connected to the same router, so now I'm kinda confused, can somebody explain how it really works?

[Blade of Grass]

The killer NIC uses software to prioritize packets from any game. By doing this, they slow down the rest of the stuff that your computer maybe be trying to send/receive.

It shouldn't affect your network anymore than gaming with a regular NIC