You can host a website on a lot less, even. But it entirely depends on what you’re hosting and the load. Basically anything can host a bunch of static pages, so if your site is just that, basically anything will do. You could probably even do a WordPress site with the right caching plugins and serve a reasonable amount of traffic. The first limit you’ll hit realistically is your uplink, not your webserver CPU.
You can host a website on a lot less, even. But it entirely depends on what you’re hosting and the load. Basically anything can host a bunch of static pages, so if your site is just that, basically anything will do. You could probably even do a WordPress site with the right caching plugins and serve a reasonable amount of traffic. The first limit you’ll hit realistically is your uplink, not your webserver CPU.