Spikes that line up with full GPU usage are a workload problem. Spikes with low GPU usage point elsewhere.
Is the GPU the limit?
Watch GPU usage and frame time together. When usage is near full and frame time rises, the GPU cannot finish frames fast enough. When usage is low during spikes, something else, such as the CPU, storage, or a driver, is holding the GPU back.
VRAM pressure
When video memory fills, the system moves data to slower system memory, which creates spikes. Lower texture quality or resolution first; those settings affect VRAM most.
Drivers and settings
A new driver can introduce or fix stutter. If the problem began after an update, test the previous version. Also check frame limiters, sync settings, and power management modes, which can change frame pacing.
Thermals and power
High temperatures or power limits cause clock drops mid-session. Monitor clocks and temperature while the stutter happens, and clean dust and verify airflow if clocks fall under load.
- Spikes that begin after warm-up → thermal or power throttling.
- Spikes at fixed intervals → background software.
- Spikes only in one game → game or driver profile.
Frequently asked questions
Can a failing GPU cause frame-time spikes?
It can, usually with other signs such as artifacts, crashes, or driver resets. Rule out settings, drivers, and thermals first.
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