Purely from the playoffs perspective I think this is single most important game on our remaining schedule.
As things look right now, Chiefs, Ravens, Steelers, Titans, Patriots and Bills look like clear playoff teams, but for the purpose of argument we need to exclude Bills from this group. Next tier is Colts, Raiders, Browns, Chargers and maybe Texans who are our direct competition for PO spots. Therefore, beating Raiders will be huge since it will become really tough for them to get ahead of us. We play only them and Chargers from that group, and Raiders seem more dangerous to me.
However, I don't think we are talking playoffs here, we should be talking division and more.