Originally Posted by UltraMega
It depends on the game. As long as you have 'enough' bandwidth, latency is really the only factor however some games use a lot more than other. BF5 is the biggest offender I know of and can use up to about 10mbps. A game like rocket league would probably do fine with half a mbps, so long as the latency is good.
Battle(non)sense measured a maximum of 1.2 Mbps for BFV, which is a little bit off from "10mbps".
Still, it merits a correction for my previous statement conveying that 1 Mbps is enough. Considering Battlefield is the worst offender, perhaps a general rule that 2 Mbps is enough is more truthful.