I mainly use my computer for online, zoom (ing) office suite music listening.
I have nocticed recenlty that it is getting a bit sluggish, nothing to bad. When I built it I put it together with a future upgrade in mind as funds allowed, with that in mind I put a dual core i3 3.7 Ghz which has seved me well.
The i7 4Ghz quad core can be had for about £125 on Ebay which in my mind looks like a good option for the next few years.
Intel Core i3-4170 3.7 GHz Dual-Core Processor.....
Asus H81M-PLUS Micro ATX LGA1150 Motherboard....
my cpu and mb with 8 gig of memory
Comments
That said, IIRC the i7 is likely to be able to access your existing RAM faster than the i3, so there might still be some advantage in upgrading it.
Bandcamp
Spotify, Apple et al
you are right about the CPU, there will be some benefit of that on it's own but it depends entirely on use case, if you have a task specific build like video rendering, or post processing etc then CPU specification becomes quite important, not just speed and number of cores but things like FSB etc.
for generic use then almost always more RAM is much more important than more CPU - and it is usually much cheaper as well.
Bandcamp
Spotify, Apple et al
Basically if the machine can't pull the info off the drive quickly it doesn't matter what CPU you have or how much ram.
Back your stuff up and reload it then see how you do. Windows tends to get slower and slower over the years if not reloaded. A reload will probably speed it up considerably
Have you run any smart tools against it ?
https://hddscan.com/
Depending on your SSD
Kingston https://support.kingston.com/Solid-State-Drives/A400-SATA-SSD/2253044341/SSD-Firmware-Update.htm
Intel https://www.intel.co.uk/content/www/uk/en/support/articles/000006425/memory-and-storage.html
At work I have seen quite a few SSD's fail compared to standard disks
A Windows reload would certainly be a good idea. 8GB is really a bare minimum these days. Have you seen how much memory chrome takes up?
In single threaded workloads you won't see much difference in performance with an i7 if the same generation but multi threaded workloads you will, or if you are doing lots of things at the same time, i.e. surfing/emailing/watching porn at the same time as your Zoom meeting.
I'd go clean PC first, then Windows reload, then memory then CPU.
I have an ssd, the hdd is for pics, music and anything else ,