Most games on my system run smooth but I have been trying to play GTA 5 recently and get some bad stuttering. I have been playing around with settings but I can't seem to fix it. My Motherboard, CPU and RAM are all around 6 years old now and the PSU maybe around 9 years old now. My latest updates over the last 2 years was the GPU, M.2, Case and CPU Cooler. I was looking for people thoughts on the upgrade choices I'm looking at.
Current Build
CPU - I5 6600k
Cooler - MSI 240R
MB - Gigabyte Z170XP-SLI
RAM - 16gb Corsair Vengeance 2400
GPU - MSI GTX 1660 SUPER
SSD's - 1tb Sabrent M.2, 250gb Samsung 850 EVO
HDD - 1tb Western Digital, 500gb Seagate
Case - MSI MAG Forge 100R
PSU - 650W Corsair
Potential Upgrades
CPU - Ryzen 9 5900x
MB - MSI X570 tomahawk or MSI B550 tomahawk
RAM - 32gb Corsair Vengeance 3600
PSU - Corsair RM850
Current Build
CPU - I5 6600k
Cooler - MSI 240R
MB - Gigabyte Z170XP-SLI
RAM - 16gb Corsair Vengeance 2400
GPU - MSI GTX 1660 SUPER
SSD's - 1tb Sabrent M.2, 250gb Samsung 850 EVO
HDD - 1tb Western Digital, 500gb Seagate
Case - MSI MAG Forge 100R
PSU - 650W Corsair
Potential Upgrades
CPU - Ryzen 9 5900x
MB - MSI X570 tomahawk or MSI B550 tomahawk
RAM - 32gb Corsair Vengeance 3600
PSU - Corsair RM850