Userbench might be a joke (I think of it as more ‘broad-brush’ than a joke), but it would show him
in seconds if his CPU was well off the pace or not.
More in-depth investigation is great but he really needs to know, in as easy way as is possible, if there is actually a problem with his CPU performance.
Userbench would let him do that.
A lot of people don’t want to have to deal with all this stuff. You buy a high end system and it should just work, particularly given the cost. People shouldn’t have to spend hours testing, running benchmarks and so on to determine if they have a faulty product or not. It’s great that you can if you want, but you shouldn’t have to if that’s not your thing.
The fact is he’s demonstrably seeing below par performance for the spec of his system. I posted my settings above which give me a perfectly acceptable performance in the game on a 3900x and 2080ti and he should be achieving the same performance at the very least. That doesn’t appear to be the case.
He needs to know if there is an issue with the CPU ASAP, and if there is then if it were me, I’d be going straight back to where I bought it from.