2500k system, continue upgrading GPU?

[Things change I've changed]

I'm very tempted to grab a 1080ti and pair it with my nearly 7 year old 2500k, am I mad!?

I've been having a look at a few 4k gaming cpu benchmarks and the CPU seems to make barely any difference, now I'm running on 3400x1400 with g-sync, is it really worth me upgrading my my CPU vs the performance gain I could get from a GPU upgrade, I know 3400x1400 is still a fair way from 4k but surely I'll still be bottlenecked by the GPU?


Check this video of a i7-8700k vs an i7-2600k,

If you skip to 6:55 where he shows the gaming benches it's really quite impressive even at CPU limited resolutions.


It's going to cost me around £500 to upgrade my system to a 2600x system (intel is no go atm with cpu price hikes)

so, 1080ti @ £600 vs 2600x upgrade @ £500


Which gains me the most performance?, bare in mind I have g-sync as well.

 

[Things change I've changed]

ummm, perhaps I'm just trying to convince myself to go the easy route and slam a new GPU in there and be done with it, maybe a new CPU upgrade is needed but I'm still a little unconvinced tbh, doesn't g-sync help with frametimes?

 

[Things change I've changed]

Might aswell, if you're going to get one you can just upgrade the rest later, I think overclocked it's going to be fine. What GPU have you got at the moment?

980Ti, specs are in my sig

 

[Things change I've changed]

And oh my god I just had a look, what has happened to intel prices? I was about to say maybe get a cheap 8400 system (processor,board,ram) for £250. But it seems the processors have more than doubled in price they were going for as little as £130 now at £290. OMG.

I know it's insane, I nearly bought an 8400 setup at the end of the summer, I thought there was no rush I'll upgrade later in the year, really kicking myself now

 

[Things change I've changed]

I have a 2080ti with a [email protected]. The CPU is a major bottleneck.

Add multiplayer and AI (VR simracing in my case) and the GPU is sitting there while the CPU is pegged. I have at my desk a 8086k and some RAM going into a build tomorrow to balance out the setup.

The 2600k and the 980ti I had were a good match but once you get past that combination, your CPU will certainly be an issue. Sandy Bridge had a great run but there's limits to everything.

A 2080ti with a 2600k! You should seriously do a few game benches before you upgrade, would be very interesting to see difference, we could really see how much the 2600k was holding you back.