Is this server enough for a forum?

Question

Web traffic analysis

Good afternoon!

I was asked this question today? to which I could not immediately answer.
There is an
Intel S3000AHLX server
Intel Xeon X3220 2.4GHz
8gb RAM

A person wants to raise a forum on it, so that I quote "800-1000 people could sit at the same time, and there were about 4000 users on the forum"
Will this power be enough?

Answer 1

Apparently not enough for a thousand people online, or everything should be cached for you

Answer 2

Too much.
If there are 4000 people in total, then every second the server will not be loaded with requests at the level of 800-1000 per second.
First
These 800-1000 active visitors will be spread throughout the day.
Secondly
If we are talking about a typical forum, then 90% of the load is reading, not writing.
And reading is not every second.
And you went into the topic - and thoughtfully read for a long time (without loading the server at all at that moment)
800-1000 users online
If the engine is not crooked,
then enough VDS for 500 rubles a month
There, the characteristics will be much thinner than what you have written.
But this is enough for the eyes of
P.P.S.
A person has a poor idea of ​​what he wants.
With 4,000 total registered people on the forum online every day, it's good if there are 50 people. Of these, 3 people at the same time.