Upgrading from 6700k?10900k?

[class2ldn]

Hi guys, had my 6700k in for around 3 years or so now, I've also got a 1080ti gpu so it runs most games ok, one game I've been playing lately is Omsi2.
Now that relies on single core and on some demanding maps I'm getting like 20fps which is a bit of a killer so im wondering whether to get a 10900k.
Saw one comparison and single core it is around 25% quicker apparently.
Is it worth the upgrade?
I cant for the life of me remember the mobo im using but I assume that would need upgrading aswell.
I've overclocked my cpu to 4.5ghz.
Any advice please.

 

[class2ldn]

Red team?

 

[class2ldn]

Ok so whats the benefits over intel then and which one would you suggest?

 

[class2ldn]

Yeah I've tweaked the settings a lot, some maps are more demanding then others so a new processor may not even solve it as its only a 32 bit game anyway

 

[class2ldn]

Thanks for all the replies, im not planning on upgrading the whole system yet.
I might just stick with what I've got for now.
In general it runs pretty well, can always get quicker I guess but id rather upgrade the system as a whole I think.