Why Disable Updates and Telemetry Before Benchmarking?

This article explains the critical importance of disabling automatic updates and system telemetry before running computer hardware benchmarks. By halting these background processes, you prevent unexpected processor, memory, and disk usage spikes that inevitably skew performance metrics. Ultimately, eliminating these variables ensures that benchmark results are accurate, repeatable, and truly reflective of the hardware's maximum capabilities.

Preventing Unwanted CPU and RAM Usage

Hardware benchmarks are designed to push components to their absolute limits. Telemetry services—which collect and transmit system data to software vendors—and automatic updates operate silently in the background. When these services trigger during a test, they consume valuable CPU cycles and occupy system RAM. Even a minor background load taking up 5% of your processor's capacity will result in a noticeably lower benchmark score, misrepresenting the actual power of the CPU.

Eliminating Disk Read/Write Interference

Storage drives have a finite amount of bandwidth. Automatic updates constantly download, extract, and write files to your Solid State Drive (SSD) or Hard Disk Drive (HDD). Similarly, telemetry services continuously log data to the drive. If these processes occur during a storage benchmark or a game loading test, they steal Input/Output Operations Per Second (IOPS) and bandwidth from the benchmark software. Disabling them ensures the drive's full speed is dedicated solely to the test.

Avoiding Thermal and Power Throttling

Modern processors and graphics cards dynamically adjust their clock speeds based on temperature and power availability. If background updates are running prior to or during a benchmark, the hardware generates extra heat and draws more power. This can cause the system to reach its thermal or power limits faster than it normally would, triggering thermal throttling. When hardware throttles, it lowers its speed to cool down, which ruins the benchmark results.

Ensuring Test Consistency and Reproducibility

Accurate benchmarking requires a controlled environment. To compare two pieces of hardware, or to measure the impact of an overclock, every test must be run under identical conditions. Telemetry and auto-updates are unpredictable; they do not run at a constant rate and can spike randomly. If an update triggers during one test run and remains idle during the next, the data becomes useless for comparison. Turning them off establishes a flat, predictable baseline.

Reducing Network Latency and Interrupts

While many hardware benchmarks are run offline, some rely on network connectivity or measure system latency. Telemetry uploads and update downloads consume network bandwidth. Furthermore, heavy network activity forces the CPU to handle network interrupts, which increases system latency. This can cause frame time spikes (stuttering) in gaming benchmarks and lower overall system responsiveness.