or nodebb outperforms forum php? I mean resources mysql database. exactly my point is whether the node is efficient or not, and if it needs more than a forum for phpquestion
NodeBB don't use mysql database, it only support mongodb or redis.
Kinda depends on which php forum. MongoDB uses more ram than mysql.
I can definitely run MyBB lighter than Nodebb on my hosting. I believe that IPB and VBulletin don't run well on shared hosting, so I'd put them about matched with NodeBB in usage. Of course, its been so long since i tried running either of those i could be full of crap.