What's my bottleneck?

[QuickPanzer]

Hey there guys. I've been wanting to figure out what my bottleneck in this system is since I am having framedrops/general low fps in games like PUBG on low settings.
Specs:
Sapphire NITRO 390x 8gb GPU
i5 4690k @ 4.0ghz CPU
8gb of RAM
Gigabyte z97x-SLI MOBO


I've also been entertaining the idea of replacing the CPU with a ryzen 1700X along with getting a new MOBO and more ram. Would this be a worthwhile investment?

 

[parthtrivedi]

Its not a worthwhile investment, as there will no upgrade in applications that use single core.
However you will see some noticible ups(15-20%) in apps that use multicore performance.
There is no visible bottleneck because of hardware,
Seems like issue if within the installed software.

 

[Rexper]

It is best for you to find the bottlenecks on your PC as there are too many variables that can affect it. I will walk you through the best method IMO:

1. Install a program like MSI Afterburner which can find and display how you performance is running.
2. Set up the On Screen Display to show Framerate, CPU Usage, GPU Usage, Ram Usage, and usage of each CPU core
3. Run the games you are experiencing framerate issues with, without touching any settings yet, and play through with the Onscreen Display toggled on.
4. If GPU usage peaking near 100%, the GPU is the bottleneck. To relieve the GPU workload and improve FPS you can: Turn graphical settings down, turn resolution down, overclock graphics card, upgrade graphics card.
If you still want to find where the CPU bottlenecks at this point, turn your resolution right down to 720p, just make sure GPU usage is not at 100%.
5. If the CPU usage or at least one of the logical cores are peaking near 100%, the CPU is the bottleneck and the frame rate you receive there is your CPUs capabilities. To relieve the CPU workload and improve the FPS you can: Further overclock CPU, (if available) turn down viewdistance, shadow quality, and physics. Upgrade CPU.

 

[adiec]

well it all depend on what you do with your system as a whole . what level of detail and resolution are you playing at ? what psu do you own ?

edit: for all the above posters know you're attempting to play at 4k with low detail .