Windows · Task Manager
Same laptop. Two operating systems.
Lightweight by design.
A side-by-side look at CPU and memory use on an 11th Gen Intel Core i5-1135G7 system, with both operating systems sitting idle and no user applications running.
Test hardware 11th Gen Intel Core i5-1135G7 · 4 cores / 8 logical processors · approximately 8 GB RAM
NoahOS · KDE System Monitor
The readings
Idle resource usage
These are the values visible in the two screenshots, captured while both systems were idle.
| Measurement | Windows | NoahOS |
|---|---|---|
| CPU utilization | 23% | 4.9% |
| Memory in use | 6.2 / 7.7 GB | 1.4 / 7.5 GiB |
| Displayed memory usage | 81% | ~19% |
| Process count | 187 | Not shown |
What stands out: In these snapshots, NoahOS showed approximately 79% lower CPU utilization than Windows, along with substantially lower reported memory use.
A note on the comparison
What these numbers mean
Both screenshots were taken on the same laptop while idle, with no user applications running. They are point-in-time readings, not a controlled benchmark. The screenshots come from different system monitors and report memory using different units (GB and GiB), so the figures are not perfectly identical measurements. Uptime, background services, drivers, hardware support, and system state can all affect resource use. Results will vary across machines and configurations.
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