This is called a frame drop rather than a stutter.
Stutters are like this:
https://www.youtube.com/watch?v=Hb8Lck8Qc90
There can be many things that drop frames in game so I will give some suggestions to improve this.
- I assume your are running the latest drivers for your GPU and motherboard, if not check the manufacturer of both and get the latest drivers.
- Frames drops can also happen when running ingame settings that are not the lowest, enable Nvidia Reflex +boost, set your vram budget to 4gb or lower, texture filtering to bilinear.
- Try the Dx12 Launcher, there should be a options/manage section in the Apex window of your launcher, find launcher options and put this in: -eac_launcher_settings SettingsDX12.json
Then save and run tthe game. - In your Nvidia control panel find the 3D settings and check your running max performance in the power management section, and enable low latency mode to on hit apply if you need to change it.
Now how a PC works is the CPU will run the game and send frames for the GPU to draw, if the CPU were maxed out then the FPS will drop because of the rate the frames are being drawn is slower.
If the GPU were maxed out then the frames would go into a buffer which causes latency. (Enabling Nvidia reflex and low latency mode overcomes this latency a bit)
In the case of stutters, things like DPC latency and other stuff can cause a delay the frame being drawn of a frame or two.
So: you have to look for a realistic FPS target, for my RTX 3080 I can get crazy stable FPS @240 under x2 thermite stress test over 10 seconds (but I have done custom optimisations to my system so yours may vary)
Things like applications can be a big impact, say you have a million CPU cores, you would still get frame drops if everything is running one core.
Yes there are procedures for windows to sort this properly but it fails to react fast enough in time critical apps like games.
This is where custom apps come in (DM me if you wanna know)
Try disabling Hyperthreading in your BIOS, it reduces power usage and can gain performance benefits.