Will Upgrading GPU Gain Much?

[Foot Sampler]

I'm thinking of upgrading my PC in the coming years, but I was wondering if it would be smarter to upgrade my GPU or my CPU (which would entail upgrading RAM, motherboard, and cooler as well). Here is my current setup:
 

i7 4790k @ 4.38GHz

Reference GTX 970

16GB DDR3 RAM

MSI Z97 Gaming 5 Motherboard

 

My assumption is that it would be more beneficial to upgrade to something like a Ryzen 2 or 3 which would obviously require a new motherboard, DDR4 RAM, and a new cooler which would cost more than just the cost of a GPU, say a used 1080 or 1080ti. My main question is this: will upgrading just the GPU give a more significant upgrade than upgrading everything else, or will it bottleneck and not net much performance making it worth saving up to upgrade everything else? Thanks for the help.

[Corrupt_Liberty]

That depends.  If you're mostly just gaming upgrade your GPU. 

[King_Jahh]

In terms of FPS in games? GPU.

 

That i7 has 8 threads at a decent clock speed so should still be managing fine in most games. Some of the new big AAA titles will probably cause it to struggle a bit but in most cases the 970 is still going to be the biggest bottleneck.

 

Wouldn't suggest running like a 2080 super/ti or stuff like that on that i7 but a 1080/ti it should handle fine in most cases

[SpookyCitrus]

The 4790K is still a fine CPU, overclocked it still keeps up nicely and should for a couple more years. I'd say a GPU upgrade would do you more good than a platform upgrade in terms of price to performance. Going for a 2060 Super or a used 1080 or 1080ti would be a fine idea. If you go for the 1080ti make sure you overclock your CPU if you aren't already.

[The Torrent]

19 minutes ago, Foot Sampler said:

I'm thinking of upgrading my PC in the coming years, but I was wondering if it would be smarter to upgrade my GPU or my CPU (which would entail upgrading RAM, motherboard, and cooler as well). Here is my current setup:
 

i7 4790k @ 4.38GHz

Reference GTX 970

16GB DDR3 RAM

MSI Z97 Gaming 5 Motherboard

 

My assumption is that it would be more beneficial to upgrade to something like a Ryzen 2 or 3 which would obviously require a new motherboard, DDR4 RAM, and a new cooler which would cost more than just the cost of a GPU, say a used 1080 or 1080ti. My main question is this: will upgrading just the GPU give a more significant upgrade than upgrading everything else, or will it bottleneck and not net much performance making it worth saving up to upgrade everything else? Thanks for the help.

I reckon you might get up to a 1080 with that cpu possibly 1080ti but I wouldn’t trust it any higher.