Upgrade cpu while cheap or save for later

[MrJosh23]

I recently got a hand-me-down pc my brother made. He build it years ago and toasted the gpu. After I got it, I put a GTX 1060 in (before prices went up) and got it working. 

 

Here's the question: should I upgrade the i5 750 in it to a i7 870, or just save to upgrade the whole thing to current architecture some years down the line?

 

So far, the cpu is the bottle neck, but not a big one. Mostly it caps out with an hd stream and cities skylines or dark souls running, eventually freezing one.

 

Is it worth the time and effort and $50-100 to grab a used i7, or should I wait until I can afford more current hardware?

[GoldenLag]

save your cash. 

 

upgrade to "current" gen would be 250$

 

PCPartPicker part list / Price breakdown by merchant

CPU: AMD - Ryzen 3 2200G 3.5GHz Quad-Core Processor  ($98.79 @ SuperBiiz) 
Motherboard: ASRock - B450M PRO4 Micro ATX AM4 Motherboard  ($79.61 @ OutletPC) 
Memory: Team - Vulcan 8GB (2 x 4GB) DDR4-3000 Memory  ($70.98 @ Newegg) 
Total: $249.38
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2018-10-14 14:59 EDT-0400

 

used AM4 CPUs can be aquired cheaper, and probably with a mobo included