A strong rig that still stutters is almost never short on horsepower. Random hitching at high FPS is a pacing and contention problem: the frames are there, they are just not arriving evenly. That has a fix order. Start at the top, change one thing per session, and test after each.
1Set the pacing chain: G-Sync on, V-Sync on, cap under refresh
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The single most common cause of hitching on a powerful rig is frames arriving faster than the panel can pace them. Uncapped FPS above the refresh ceiling defeats variable refresh and reintroduces stutter and tearing at the moments that matter.
2Isolate the side monitors, especially mixed refresh rates
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When monitors run at different refresh rates, Windows has to reconcile the refresh domains, and anything animating on the slower panel (chat, a browser video, a dashboard) can periodically stall the game monitor. Invisible to benchmarks, very visible in a match.
3Confirm every monitor is on the graphics card
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On machines with an integrated GPU alongside the discrete card, a monitor plugged into the motherboard's video port routes frames through the integrated GPU. Frames get copied between adapters, and that copy is a direct cause of hitching.
4Run LatencyMon and read the driver offenders
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Kernel drivers that poll hardware constantly add DPC latency, which surfaces as micro-stutter no framerate counter explains. The names that come up most often in enthusiast troubleshooting threads: Nahimic and A-Volute audio stacks, Killer and Rivet networking suites, Wi-Fi adapter drivers, and RGB or peripheral suites (iCUE, Armoury Crate, Mystic Light, Synapse). Treat that as a starting list, not a verdict on any of them: the driver holding your CPU is a fact about your machine, and LatencyMon is what establishes it.
5Cut background contention while playing
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A browser playing video on the second monitor, an animated wallpaper, overlay hooks (Discord, GeForce Experience, a second capture tool), antivirus scans, cloud-sync bursts, and background game recording all contend for the GPU, CPU, or disk in bursts that land as random hitches.
6Shaders last
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Shader-compilation stutter is real, but it correlates with new areas, fresh drivers, and first runs, not with steady-state hitching in a familiar game. It is the suspect people reach for first and the answer least often.
