I'm troubleshooting intermittent micro-stutters on the Windows 11 desktop with an RTX 5070 Ti, a single 4K 160 Hz G-SYNC display, and current NVIDIA drivers. Games remain completely smooth, but scrolling in Edge, dragging windows, and using File Explorer sometimes stutter.
The behavior appears connected to GPU power states, although it is inconsistent. At idle, the memory clock can drop to 405 MHz. Sometimes scrolling is smooth at that clock, while other times it produces noticeable stutter. Monitoring also shows Memory Controller Load and Bus Interface Load sitting around 30–50% at idle, then dropping close to 0% when a GPU workload starts.
I tested several configurations. A 405 MHz or 810 MHz memory state still allowed occasional stutters, while locking memory to 7001 MHz, selecting Prefer maximum performance, opening GPU-Z, or creating light GPU activity made the desktop smooth. Disabling MPO did not help. However, locking memory at 7001 MHz reduces my Steel Nomad score from roughly 69,000 to 54,000, so it is not a practical permanent solution.
The memory clock can also rise normally during a smooth scroll, so the issue does not appear to be simply an insufficient memory frequency. The available memory states are 405, 810, 7001, 13801, and 14001 MHz, and the GPU moves between different P-states dynamically.
Could this be a driver, PowerMizer, P-state, or desktop-compositor issue affecting RTX 50-series cards at high refresh rates? Has anyone found a workaround that avoids permanently locking the memory clock or using maximum-performance mode?
4 Answers
What power supply are you using, and is it connected with the recommended dedicated power cable? Even though the symptoms sound more like driver or power-state behavior, confirming the PSU model, capacity, and cabling would help rule out power-delivery problems.
As a diagnostic test, temporarily locking the GPU to a higher frequency with a tool such as MSI Afterburner can confirm whether transitions between low and high power states are involved. Since maximum-performance mode and a memory lock eliminate the stutter, that would support the power-state theory, but I would treat it as a test rather than a final fix.
It may be worth confirming that the stutter is actually GPU-related before focusing entirely on memory clocks. CPU scheduling, power delivery, or another system component could produce similar desktop symptoms. Checking whether the issue changes with different power settings and monitoring CPU behavior at the same time might help narrow it down.
Try clearing the NVIDIA shader cache and testing again. A corrupted or outdated cache can sometimes cause inconsistent rendering behavior, although it would not fully explain the unusual idle load readings. This is a relatively low-risk troubleshooting step before changing clocks permanently.
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