Trying to upgrade my build that is from 2018 Where do I start?

Bhris_Bhreezy

Starting with a thanks for anyone who can assist me and point me in the right directions.

My build is older and is unavailable through the microcenter build site. The budget for upgrade is $500-$750, I have both a 1080p monitor and a 1440p monitor looking to get high fps on 1080p games and fluid fps on higher quality games. Currently can barely run MW2 and want to upgrade for MW3, BG3. If this is not the place for support then I apologize, just trying to get some other opinons.

Here listed:

CPU: Intel Core i7-8086K 4 GHz 6-Core Processor

CPU Cooler: Gelid Solutions Liquid 120 Liquid CPU Cooler (AIO)

Motherboard: ASRock Z370 Pro4 ATX LGA1151 Motherboard 

Memory: ADATA XPG Z1 16 GB (2 x 8 GB) DDR4-3200 CL16 Memory 

Storage: Western Digital Green 240 GB 2.5" Solid State Drive 

Storage: Seagate Surveillance HDD 2 TB 3.5" 5400 RPM Internal Hard Drive 

Video Card: NVIDIA Founders Edition GeForce GTX 1080 Ti 11 GB Video Card 

Case: Phanteks Enthoo Pro M ATX Mid Tower Case 

Power Supply: Gigabyte GP-G750H 750 W 80+ Gold Certified Semi-modular ATX Power Supply 

Operating System: Microsoft Windows 10 Home OEM - DVD 64-bit 

magarity

First go to youtube and search for "Modern Warfare 2 1080Ti" . I think you may be surprised at how well that's holding up. However notice those reviews are using cutting edge CPUs with one of those cards. I think if you upgrade to a 13th gen Intel or AMD 7000 and corresponding motherboard and memory then you'll be all set.