Upgrade Advice - 4 year old PC

[ablack051]

Hi,

I want to upgrade my PC however i don't know where to start, i would assume new graphics card....but have bottle necked old PCs that way.

Case	NZXT S340 MID TOWER GAMING CASE (BLACK/BLUE)
Processor (CPU)	Intel® Core™i7 Six Core Processor i7-8700k (3.7GHz) 12MB Cache
Motherboard	ASUS® PRIME Z370-P: ATX, LGA1151, USB 3.1, SATA 6GBs
Memory (RAM)	16GB Corsair VENGEANCE DDR4 3000MHz (2 x 8GB)
Graphics Card	8GB NVIDIA GEFORCE GTX 1080 - DVI, HDMI, 3x DP - GeForce GTX VR Ready!
1st M.2 SSD Drive	256GB WD Black™ M.2 NVMe PCIe SSD (up to 2050MB/s R | 700MB/s W)
1st Storage Drive	1TB WD BLACK 3.5" WD1003FZEX, SATA 6 Gb/s, 64MB CACHE (7200rpm)
DVD/BLU-RAY Drive	NOT REQUIRED
Power Supply	CORSAIR 650W TXm SERIES™ SEMI-MODULAR 80 PLUS® GOLD, ULTRA QUIET
Power Cable	1 x 1 Metre UK Power Cable (Kettle Lead)
Processor Cooling	Corsair H100i V2 Hydro Series High Performance CPU Cooler
Thermal Paste	STANDARD THERMAL PASTE FOR SUFFICIENT COOLING

 

[ablack051]

Thanks for your reponse!

I don't currently have the games stored on the SSD as it's so small.

I have 3 monitors, 1 is 2560x1440 the other 2 are standard 1080.

Also i have tried playing the new Call of Duty but it's way too stuttery.

 

[ablack051]

Only 1 which is the 2k one I might on the odd occasion watch tv while gaming on the other.