The specs of the box are the least of your worries at that point. You tell your enthusiastic customers to set up a pull-through cache, because with that kind of

The specs of the box are the least of your worries at that point. You tell your enthusiastic customers to set up a pull-through cache, because with that kind of traffic, you're going to pay through the nose for egress on typical cloud providers, unless you can guarantee that your users are collocated.