[Yes or No] Do i need an upgrade?

[max64751]

I want to stream games at 720p and play the game (Fortnite) at 1920x1080 and 144+ fps at all low settings. Do I need an upgrade at all? Because trying to stream at 720p is still lagging my game under 144 fps. Also the thing that confuses me is when im lagging while streaming/gaming my CPU or GPU isnt using 100% of its energy (Why wont it? I want to use my parts to their full potential)

My PC:
CPU: i7 7700k @5 GHz on a water cooler
GPU: GTX 1070 @ 1987 MHz
Memory: 16GB of RAM

THANKS!

 

[geofelt]

Games will be limited by cpu capability or graphics capability.

Be careful how you interpret task manager cpu utilizations.
Windows will spread the activity of a single thread over all available threads.
So, if you had a game that was single threaded and cpu bound, it would show up on a quad core processor as 25%
utilization across all 4 threads.
leading you to think your bottleneck was elsewhere.
It turns our that few games can usefully use more than 2-3 threads.
How can you tell how well threaded your games or apps are?
One way is to disable one thread and see how you do.

You can do this in the windows msconfig boot advanced options option.
You will need to reboot for the change to take effect. Set the number of processors to less than you have.
This will tell you how sensitive your games are to the benefits of many threads.
If you see little difference, it tells you that you will not benefit from more cores.
Likely, a better clock rate will be more important.