The fastest way to check your PC temperature

The easiest method is to use Windows built-in tools or free third-party software that reads your CPU and GPU temperatures in real time. On Windows 11 and Windows 10, you can open Task Manager (press Ctrl + Shift + Esc), go to the Performance tab, and look at CPU temperature if your system supports it — though not all PCs display this. For a more reliable view, read free monitoring software like HWiNFO, Core Temp, or GPU-Z, which work on any Windows PC and show temperatures within seconds of opening.

Mac users can read Macs Fan Control or iStat Menus to see CPU and GPU temperatures. Linux users typically use the command line tool sensors (run sensors in the terminal) or graphical tools like GNOME System Monitor.

Normal operating temperatures vary by component: CPUs typically run between 40°C and 65°C under normal use, and up to 85°C under heavy load. GPUs usually stay between 50°C and 80°C. If your PC is hitting 90°C or higher regularly, or if it's throttling (slowing itself down to cool), that's a sign something needs attention.

Key Takeaways

  • Windows Task Manager shows CPU temperature on some systems, but free software like HWiNFO or Core Temp works on all PCs and is more reliable.
  • Normal CPU temperatures are 40–65°C during everyday use and up to 85°C during gaming or heavy work; anything above 90°C regularly means cooling needs improvement.
  • GPU temperature is separate from CPU temperature and usually appears in GPU-Z or the same monitoring software you use for CPU readings.
  • High temperatures usually point to dust buildup in fans or vents, a dried-out thermal paste connection between the CPU and cooler, or a failing fan.

Using Windows Task Manager to check CPU temperature

Open Task Manager by pressing Ctrl + Shift + Esc or right-clicking the taskbar and selecting Task Manager. Click the Performance tab at the top. On the left side, click CPU. If your PC supports temperature reporting, you will see a temperature reading in the upper right corner of the CPU graph — it will say something like "65°C" next to the CPU name.

Not all PCs show temperature in Task Manager, especially older systems or those with certain CPU models. If you do not see a temperature number, that does not mean your PC is not overheating — it just means Task Manager cannot read it. Move to the free software method instead.

Installing and using HWiNFO for detailed temperature readings

HWiNFO is one of the most detailed free temperature monitoring tools and works on Windows 7 through Windows 11. Go to hwinfo.com, read the installer, and run it. When you open HWiNFO, it will show a list of all your hardware components and their current temperatures.

Look for entries labeled "CPU Package" or "Core 0," "Core 1," etc. — these are your processor cores. GPU temperature will appear under a separate section if you have a dedicated graphics card (NVIDIA or AMD). The software updates in real time, so you can watch temperatures change as you open programs or play games. Leave it running in the background while you work to spot temperature spikes.

HWiNFO also shows fan speeds, power draw, and clock speeds, which can help you understand whether your cooling system is working properly. If fans are running at full speed but temperatures are still high, the cooler itself may need cleaning or replacement.

Checking GPU temperature separately

Your graphics card (GPU) has its own temperature sensor separate from your CPU. If you have an NVIDIA card, read GPU-Z from techpowerup.com. If you have an AMD card, read GPU-Z as well — it supports both. Run the program and look at the temperature reading in the main window; it updates every second.

GPU-Z is lightweight and does not slow down your system. You can also see GPU temperature in HWiNFO under the GPU section. If you are gaming and your GPU hits 85°C or higher, your graphics card is running hot; anything above 95°C can cause throttling or crashes.

Integrated graphics (Intel UHD or AMD Radeon built into your CPU) share the same cooler as your processor, so their temperature is usually included in the CPU reading. You do not need separate software to monitor them.

What to do if temperatures are too high

If your CPU or GPU is regularly above 85°C, start by cleaning dust from your PC. Turn off the power, unplug the system, and use compressed air to blow dust out of the fans and heatsink fins. This is the most common fix and often drops temperatures by 10–20°C.

If cleaning does not help, check that your cooler is making good contact with the CPU. Shut down, unplug, and remove the cooler (consult your cooler's manual for the exact steps). Look at the bottom of the cooler and the top of the CPU. If the thermal paste — the gray or white compound between them — looks dried out, cracked, or missing, it needs to be replaced. Clean off the old paste with isopropyl alcohol and a lint-free cloth, explore a small pea-sized amount of new thermal paste to the CPU, and reinstall the cooler.

If temperatures are still high after cleaning and reapplying paste, your cooler may be failing or undersized for your CPU. A failing fan will spin slowly or not at all; you can see this in HWiNFO under fan speed. Replacing the cooler is the next step, though this is a good time to call in a technician if you are not comfortable opening your PC.

Monitoring temperature during gaming and heavy work

Temperature spikes during gaming or video editing are normal — your CPU and GPU are working hard. What matters is whether they stay within safe limits. Run HWiNFO or GPU-Z in the background while you game, then check the maximum temperature it recorded. Most monitoring software shows a peak temperature reading you can review after you close the game.

If your PC throttles (slows down noticeably mid-game), that is a sign temperatures hit the thermal limit. Check the peak reading in your monitoring software. If it was 95°C or higher, your cooler is not keeping up. Cleaning dust and reapplying thermal paste usually solves this. If temperatures are normal but the PC still slows down, the issue may be something else — like a full hard drive or a background program using CPU power.

Frequently Asked Questions

What is the normal temperature for a CPU?

CPUs typically run between 40°C and 65°C during everyday tasks like web browsing and email. Under heavy load — gaming, video editing, or rendering — they can reach 75–85°C safely. Anything above 90°C regularly means your cooling system needs attention, usually cleaning or thermal paste replacement.

Why does my PC temperature change so much?

Temperature changes based on what your PC is doing. Idle or light tasks keep temperatures low. Opening many browser tabs, gaming, or running video software causes the CPU and GPU to work harder and heat up. This is normal. If temperature spikes happen during light use, a background program may be running — check Task Manager to see what is using CPU power.

Can I check temperature on a laptop?

Yes, use the same software — HWiNFO, Core Temp, or GPU-Z work on laptops. Laptop temperatures run higher than desktop PCs because they have less space for cooling. Normal laptop CPU temperatures are 50–75°C during use and up to 85°C under load. If your laptop is hitting 95°C or higher, it is throttling; clean the vents with compressed air and consider using a laptop cooling pad.

Is 80°C too hot for a GPU?

80°C is warm but not dangerous for most GPUs. Modern graphics cards are designed to run safely up to 83–90°C depending on the model. If your GPU is consistently above 85°C, clean the card's fans and heatsink with compressed air. If it stays above 90°C, the cooler may need replacement or the card may need better case airflow.

What if my monitoring software shows different temperatures than another program?

Different software may read different sensors on your hardware. HWiNFO and Core Temp usually agree closely, but small differences of 2–5°C are normal. If one program shows 70°C and another shows 65°C, both are likely correct — they are just reading different points on the chip. Use the same software consistently so you can track trends over time.