Is HWiNFO safe to use while gaming?

Yes, HWiNFO is safe and widely trusted — used by hardware reviewers like GamersNexus, Hardware Unboxed, and TechPowerUp. With default settings (500ms polling), it uses less than 0.5% CPU and has no measurable impact on gaming performance. However, avoid enabling ASUS EC sensors or very fast polling (below 250ms), as these can cause micro-stutters on some systems.

What should I look for in HWiNFO logs?

Five red flags to check: 1) 'Thermal Throttling: Yes' flag (your CPU/GPU is overheating), 2) Clock speed drops during gameplay (power or thermal limits), 3) Any CPU core hitting 100% (CPU bottleneck), 4) GPU usage dropping below 90% (bottleneck elsewhere), 5) Memory usage exceeding 85% (RAM pressure). Sort your CSV by timestamp and look for these values at the exact moments stuttering occurred.

What polling interval should I use in HWiNFO for gaming logs?

Use 500ms for most gaming sessions — it captures enough detail without creating huge files. Use 1000ms for 30+ minute sessions, and only use 250ms if you're hunting for sub-second spikes. Avoid 100ms or lower as it can add overhead.

How do I know if my CPU or GPU is throttling in HWiNFO?

Look for 'Thermal Throttling: Yes' or 'Power Limit: Yes' flags. Also watch for sudden clock speed drops (e.g., GPU clock going from 2100 MHz to 1500 MHz) when temps spike above 90°C. These indicate your hardware is slowing down to protect itself.

Why does HWiNFO sometimes cause stuttering itself?

ASUS EC sensors, SMART disk polling, and too-fast polling intervals can cause micro-stutters. Fix by: disabling ASUS EC monitoring, turning off SMART sensors in settings, and using 500ms+ polling interval.

Can HWiNFO tell me if I have a CPU bottleneck?

Yes. Watch GPU Usage and per-core CPU Usage. If your GPU usage bounces between 40-99% while one CPU core stays at 100%, that's a CPU bottleneck. The GPU is waiting for the CPU to feed it work.

Hardware Monitoring

HWiNFO Log Analysis Guide

By Han Mitchel·Updated Feb 6, 2026·5 min read

Creator of SmoothFPS

HWiNFO (Hardware Information) is the gold standard tool for diagnosing gaming performance issues. By recording sensor data to a CSV file while gaming, you capture exactly what your CPU, GPU, RAM, and storage were doing when stuttering occurred. This data reveals thermal throttling, power limit hits, clock speed drops, and CPU saturation — problems that are invisible to FPS counters and Task Manager.

The SmoothFPS diagnostic pipeline is built on HWiNFO data: record a log, upload the CSV, and our AI analyzes the data to pinpoint your issue. This hub page connects our three HWiNFO guides — recording, reading, and AI-powered analysis — into a complete workflow.

Have a HWiNFO log already? Upload it for instant AI-powered analysis!

Upload Log for Analysis

Step-by-Step HWiNFO Tutorials

New to HWiNFO? Start with these detailed guides:

Visual Walkthrough (24 Screenshots)

Never used HWiNFO? Every step shown with annotated screenshots — launch to results. No technical knowledge needed.

How to Record HWiNFO Logs

Complete setup guide: download, configure, and record logs while gaming. Best settings and intervals explained.

How to Read HWiNFO Metrics

Understand temps, clocks, usage, and warning signs. Learn what each sensor means for gaming performance.

How to Set Up Sensor Alerts

Turn HWiNFO into an early-warning system: alert on overheating, throttling and clock drops while you game.

What is HWiNFO?

HWiNFO (Hardware Info) is a comprehensive hardware monitoring application that provides detailed information about your PC components and real-time sensor data. It's the go-to tool for diagnosing performance issues — whether you are troubleshooting FPS stuttering or tracking down hardware faults — because it can track:

Temperatures

CPU, GPU, VRM, SSD temps in real-time

Power & Voltage

Power draw, voltage drops, throttling

Usage & Clocks

CPU/GPU usage, clock speeds, memory

Frame Metrics

FPS, frame time, 1% lows

Why Use HWiNFO for Gaming Issues?

Find the Root Cause: Instead of guessing, see exactly what's happening when stutters occur — including OS-level issues in Windows 11
Detect Thermal Throttling: Know when your CPU/GPU is slowing down due to heat
Identify Bottlenecks: See if CPU, GPU, RAM, or storage is limiting performance
Track Power Limits: Detect when your GPU hits power limits and throttles
Monitor Memory: Check RAM and VRAM usage for potential issues
Record Evidence: Create logs to share or analyze later

Quick Start Guide

Step 1: Download HWiNFO

Go to hwinfo.com/download
Download the portable or installer version (both work)
Run HWiNFO64.exe (use 64-bit version)

Step 2: Configure for Gaming

Select "Sensors-only" mode when starting
Right-click any sensor → Settings
Enable: Show Values in Tray, Minimize to Tray

Step 3: Start Logging

Click the 📝 button (or Tools → Sensor Logging)
Choose a save location for your CSV file
Set logging interval to 500ms or 1000ms
Click Start

Step 4: Play & Capture

Start your game and play normally
When you experience stuttering, note the time
Play for 5-15 minutes to capture good data
Exit game and stop logging in HWiNFO

Key Metrics to Watch

Thermal Throttling Indicators

CPU Package Temp > 90°C
GPU Temperature > 85°C
"Thermal Throttling" flag = Yes
Clock speeds dropping during load

Power Limit Indicators

"Power Limit" flag = Yes
GPU Power dropping below TDP
Sudden clock speed drops (could point to driver-related problems)
Voltage instability

Memory Issues

RAM usage > 90% (see our RAM and VRAM troubleshooting guide)
VRAM usage near maximum
Page file activity spikes
Memory controller load high

Healthy System

Stable temperatures under 80°C
No throttling flags
Stable clock speeds
RAM/VRAM with headroom

HWiNFO vs Other Monitoring Tools

Why do we recommend HWiNFO over other options?

Tool	Pros	Cons	Best For
HWiNFO ⭐	Most sensors, best logging, throttle flags	Overwhelming for beginners	Detailed diagnosis
MSI Afterburner	Best OSD, GPU overclocking	Fewer CPU sensors, less detailed	Real-time monitoring
GPU-Z	Simple, accurate GPU info	GPU only, no CPU monitoring	Quick GPU checks
NZXT CAM	Pretty UI, easy to use	Missing key sensors, less accurate	Casual monitoring

Pro tip: Use HWiNFO for logging and diagnosis, MSI Afterburner for real-time OSD while gaming.

Not sure this is actually your issue?

Upload your HWiNFO log — if an analysis issue is the cause, the analyzer confirms it in under a minute with your real sensor data.

Upload & analyze Try the diagnosis quiz

Frequently Asked Questions

What is HWiNFO and why do I need it for gaming?

HWiNFO is free hardware monitoring software that tracks CPU/GPU temperatures, power consumption, clock speeds, and usage in real-time. For gaming, it reveals what's actually happening when stuttering or FPS drops occur.

What polling interval should I use for gaming logs?

500ms for most sessions. 1000ms for 30+ minute sessions. Only 250ms if hunting sub-second spikes. Avoid 100ms as it adds overhead.

How do I know if my hardware is throttling?

Look for "Thermal Throttling: Yes" or "Power Limit: Yes" flags. Also watch for sudden clock speed drops when temps spike above 90°C.

Can HWiNFO itself cause stuttering?

Yes! ASUS EC sensors and SMART disk polling can cause micro-stutters. Fix by disabling these in HWiNFO settings.

Let AI Analyze Your Log — Don't want to read through thousands of rows? Upload your HWiNFO CSV and get instant, AI-powered diagnosis of your gaming issues.

Upload HWiNFO Log

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