33tick vs 66tick

I know this question has been already asked. But I did not find any propper and secure answer on this.

What is really the difference between a 33tick and 66tick Garry’s Mod server?
If I’m going to have a 24 slots roleplay server on downtown.

This is a quote from Flapadar in an older post but i’ve heard 66 runs smoother

I also found this: http://www.counter-strike.com/faqs/tickrate/

Interesting… Too bad that article was for CSS. It’s alot different than Gmod for example. Since we can spawn alot of props.

-snip-

No, the networking is exactly the same in both games. 33tick will be best as you don’t really need much calculations and accuracy as you do with a real fps.