I recently switched from HDD to SSD and upgraded one of my monitors from 720p 60hz to 1080p 144 hz, the other is still 720p 60hz. The past few weeks since I did those upgrades I've noticed a lot of studdering, freezing and pausing on basically any activity I do. Whether it's opening tabs in chrome while im doing nothing else on my computer, or watching netflix while playing a video game on my second monitor. My best guess is that some of my parts are getting a little out of date and I dont mind having to put in some money for upgrades. I've looked into a few sites like UserBenchmark and PcPartPicker to help me look into stuff a little, but I'm not 100% confident on what I should do to upgrade or fix the problem. at least on userbenchmark it shows that i could just upgrade my graphics card and it should help me out tremendously but I dont wanna drop the money on it before i know if it will solve the problem or not.
Baseline stats of my PC from UserBenchmark:
Baseline Bench: Game 42%, Desk 68%, Work 49%
CPU: Intel Core i7-3820 $400
GPU: Nvidia GTX 960 $200
SSD: Samsung 860 Evo 500GB $117
HDD: Hitachi HDS722020ALA330 2TB $54
RAM: Unknown TD4G16C11-H11 4x4GB
MBD: Gigabyte GA-X79-UP4 $648
Baseline stats of my PC from UserBenchmark:
Baseline Bench: Game 42%, Desk 68%, Work 49%
CPU: Intel Core i7-3820 $400
GPU: Nvidia GTX 960 $200
SSD: Samsung 860 Evo 500GB $117
HDD: Hitachi HDS722020ALA330 2TB $54
RAM: Unknown TD4G16C11-H11 4x4GB
MBD: Gigabyte GA-X79-UP4 $648