CPU and GPU temperature, live
Both temperatures update in °C inside the Performance Monitor widget, next to each chip's usage. One glance tells you how warm the PC is running right now.
Temperature Monitor
CPU and GPU temperature monitor for Windows
SysCubes is a free Windows app that shows CPU and GPU temperature live, beside usage, RAM and FPS. Keep the readings on your desktop, a second monitor or a compact overlay in supported games.
Free Windows AppNo Account Needed100% Virus-Free (Overwolf Verified)
- Windows 11 & 10 (64-bit)
- CPU & GPU in °C
- Desktop, second screen & overlay
Explore the interactive preview
Temperature readingsInteractive sample
- Comes from
- Processor sensor, through the SysCubes Sensors service
- Setup
- One-time Unlock CPU readings step
- Appears in
- Desktop widget, game overlay and incident reports
Shows how warm the processor is running. Read it next to CPU usage: a high temperature at low usage and at full load are two different situations.
Select a reading to see where it comes from and where it appears. Values are illustrative; the preview does not measure your PC.
Heat, in context
See CPU and GPU temperature next to the work behind it
A temperature on its own is hard to judge. SysCubes puts CPU and GPU temperature in the same widget as usage, RAM and FPS, so you can tell a busy chip from a warm room.
Heat beside load and FPS
A temperature means more next to the workload behind it. See it with CPU and GPU usage, RAM and the reported FPS of a supported game, so a warm reading and a slowdown line up on one screen.
The peak, saved in a report
Capture an incident report after a slowdown and it keeps the temperatures at that moment plus the highest one recorded, in a local file you can review later.
New to temperature checks? Compare the ways to check CPU and GPU temperature in Windows 11, or download SysCubes for Windows and open the Performance Monitor widget.
Put the readings where you look
Desktop, second monitor or in-game temperature overlay
Use the full widget on the desktop or a second screen, with no game running. In a supported game, a compact overlay keeps both temperatures at the edge of the action.
Desktop widget
Check temperatures while you work, render or browse. The full widget runs on the Windows desktop with no game open.
Second monitor
Give the widget its own screen. Temperatures, usage and history stay in view beside the game, and your main display stays clear.
In-game overlay
In a game supported by Overwolf, compact gauges show both temperatures at the edge of the screen. Press Alt + O to show or hide them.
Plan the layout with the second-screen dashboard or the custom in-game overlay.
One-time setup
Turn on CPU temperature once
GPU temperature appears as soon as your graphics card reports it. CPU temperature and clock speed use a small Windows sensor service that you switch on once.
Open the Performance Monitor
Install SysCubes and add the Performance Monitor widget. Usage, RAM and GPU temperature start updating right away.
Choose Unlock CPU readings
Select the lock under CPU and choose Unlock CPU readings. Windows asks for permission, then sets up the SysCubes Sensors service and, if your PC needs it, the PawnIO driver through its official installer.
Keep it on
From then on SysCubes reconnects by itself at every launch, with no further prompts. CPU temperature also appears in the game overlay and in new incident reports.
The CPU sensor setup guide covers each step and how the sensor service works.
Read the numbers
What each temperature reading tells you
Each reading has its own source. Knowing where a number comes from makes it easier to act on.
| Reading | Where it comes from | Use it to |
|---|---|---|
| CPU temperature (°C) | Your processor's sensor, read by the SysCubes Sensors service after the one-time unlock. | See how warm the processor runs under your game or workload. |
| GPU temperature (°C) | Your graphics card's own sensor, with no extra setup. | Check graphics heat during demanding scenes. |
| Peak temperature in a report | The highest value recorded while an incident report was captured. | Look back at how hot the PC got around a slowdown. |
Wondering whether your number is fine? See normal CPU and GPU temperatures while gaming for ranges by brand. For usage, RAM and FPS history in the same widget, open the FPS overlay and hardware monitor.
| Reading or screen | What it needs |
|---|---|
| Desktop or second monitor | SysCubes on Windows 10 (1809 or later) or Windows 11, installed through Overwolf. |
| GPU temperature | A graphics card that reports its temperature. |
| CPU temperature | The one-time Unlock CPU readings step and a processor that exposes its sensor. |
| In-game overlay | A game supported by Overwolf, with its overlay switched on. |
Check your PC and games against the system requirements.
Your questions, answered
Temperature Monitor FAQ
How do I monitor CPU temperature in Windows 11?
Windows 11 shows GPU temperature in Task Manager and has no built-in CPU temperature readout. Install SysCubes, add the Performance Monitor widget and choose Unlock CPU readings once. CPU and GPU temperature then update live on your desktop, beside usage, RAM and FPS.
Can I see CPU and GPU temperature while gaming?
Yes. In a game supported by Overwolf, the compact performance overlay shows CPU and GPU temperature under the usage gauges, next to RAM and FPS. Press Alt + O to show or hide it. On any PC you can also keep the full widget on a second monitor while you play.
Is the SysCubes temperature monitor free?
Yes. SysCubes for Windows is free to download via Overwolf, with no subscription fee and no account required. The temperature readings are part of the Performance Monitor widget.
What does Unlock CPU readings set up?
It sets up the SysCubes Sensors Windows service and, if your PC needs it, the PawnIO hardware driver through its official installer. Windows asks for permission once. After that, SysCubes reconnects by itself at every launch. The service only reads sensors, and you can remove it from Windows Installed apps.
What is a normal CPU or GPU temperature while gaming?
Most desktop CPUs and GPUs run at about 60-85 °C in games, and the exact limit depends on the model. The SysCubes guide to normal CPU and GPU temperatures lists ranges by brand, so you can compare them with the live reading in the widget.
Your PC. In your hands.
Keep an eye on the heat while you play.
Download SysCubes for Windows free via Overwolf and put CPU and GPU temperature on the screen you already watch.
Download SysCubes for Windows
Free • No credit card or account needed • Instant 1-minute setup • Windows 10/11