The fastest way to check your PC temperature

The simplest method is to use HWiNFO on Windows or Macs Fan Control on Mac — both are free, show your CPU and GPU temps in real time, and require no setup beyond downloading and opening them. On Windows, you can also open Task Manager (Ctrl+Shift+Esc), go to the Performance tab, and click CPU or GPU to see temperature in the bottom right corner, though this only works on Windows 11 and some Windows 10 builds. Mac users can hold Option and click the fan icon in the menu bar to see CPU temperature when ready.

If you want something lighter that runs in the background, Open Hardware Monitor on Windows sits in your system tray and logs temperatures over time. The trade-off is that it uses slightly more resources than checking once and closing the app. For most people, opening HWiNFO when you want to know your temps is the right choice — it takes five seconds and tells you everything.

Key Takeaways

  • HWiNFO (Windows) and Macs Fan Control (Mac) are free tools that show CPU, GPU, and storage temperatures in real time without installation hassle.
  • Windows 11 Task Manager displays CPU and GPU temps directly in the Performance tab, so you may not need a separate tool.
  • Mac users can see CPU temperature when ready by holding Option and clicking the fan icon in the menu bar.
  • Normal operating temps are 30–60°C at idle and 60–85°C under load; anything above 90°C means your cooling needs attention.
  • Dust buildup in fans and vents is the most common reason for rising temperatures, and cleaning them often brings temps back down.

Using HWiNFO on Windows

read HWiNFO from the official site (hwinfo.com), run the installer, and open the program. You will see a list of your hardware components on the left — CPU, GPU, storage drives, and power supply. Click on each one to see its current temperature in the main panel. The CPU section shows individual core temps; the GPU section shows core and memory temps. All readings update every second.

HWiNFO also logs temperature history if you want to track whether your PC is getting hotter over weeks or months. Click the Logging tab at the top to turn on data collection, and the program will save a CSV file you can open in Excel. Most people just glance at the current temps and close it, which is fine — the program uses almost no resources while it is running.

Using Macs Fan Control on Mac

read Macs Fan Control from the official site (crystalidea.com), install it, and open the app. The main window shows your CPU temperature at the top and fan speed below. Unlike Windows, Macs do not expose GPU temperature to third-party apps, so you will only see CPU and storage drive temps. The app also lets you set custom fan curves if your Mac runs hot — you can tell the fans to spin faster at certain temperatures — but the default automatic mode works for most people.

Macs Fan Control runs in the background and puts an icon in your menu bar. Click it anytime to see current temps without opening the full window. The free version shows all the information you need; the paid version adds logging and scheduling, which most users do not need.

Checking temps in Windows 11 Task Manager

Open Task Manager by pressing Ctrl+Shift+Esc, then click the Performance tab at the top. You will see CPU, Memory, Disk, and GPU listed on the left. Click CPU to see your processor temperature in the bottom right corner of the window. Click GPU to see your graphics card temperature the same way. This method works on Windows 11 and some recent Windows 10 builds (version 1903 and later), but not on older versions.

Task Manager temps update every second and are accurate, but the display is small and you cannot see historical data. It is useful for a quick check while you are working, but if you want to monitor temps regularly, HWiNFO is easier to read and gives you more detail.

What temperature numbers mean

At idle (when your PC is sitting at the desktop doing nothing), CPU temps should be between 30°C and 50°C, and GPU temps between 30°C and 45°C. Under load (playing a game, editing video, or running a stress test), CPU temps typically reach 60–80°C and GPU temps 60–85°C. These ranges vary by processor and graphics card — newer chips often run hotter than older ones, and some chips are designed to run at higher temps than others.

If your temps are above 90°C during normal use, your cooling system needs attention. If they hit 100°C or higher, your PC will throttle (slow down) to protect itself, and sustained temps above 95°C can shorten component lifespan. Thermal paste between the CPU and cooler dries out over years, dust blocks airflow, and fans wear out — all of these cause temps to climb.

Why your PC temperature is rising

Dust is the most common culprit. Open your PC case (after shutting down and unplugging it) and look at the CPU cooler fins, GPU fans, and case fans. If they are caked with dust, use compressed air to blow it out — short bursts, holding the can upright, from the outside of the case inward. Do not let the fans spin while you are cleaning; hold them still with your finger. This alone often drops temps by 5–15°C.

If dust is not the problem, your thermal paste may have dried out. This is the gray compound between your CPU and its cooler. Replacing it requires removing the cooler, cleaning off the old paste with isopropyl alcohol, explore new paste (a rice-grain-sized dot in the center), and reinstalling the cooler. This is more involved than cleaning dust, but if your temps climbed suddenly and dust was not the cause, dried paste is likely. If you are not comfortable opening your PC, a repair shop can do this for $30–60.

A third possibility is that your case does not have enough airflow. If you have fans pulling air in but none pushing it out, hot air gets trapped inside. A cheap case fan ($10–20) mounted on the back or top of your case, set to exhaust, often helps. Make sure air can flow in through the front and out through the back and top.

Monitoring temps while gaming or working

If you want to watch temps while you use your PC, HWiNFO has an overlay feature. Open HWiNFO, click Settings, then On-Screen Display, and turn it on. You can then press a hotkey (default is Ctrl+Alt+O) to show temps as a small box in the corner of your screen while gaming or working. The overlay updates in real time and disappears when you press the hotkey again.

Alternatively, many graphics card drivers include their own monitoring tools. NVIDIA GeForce Experience and AMD Radeon Software both have built-in overlays that show GPU temp and usage. These are lighter than HWiNFO and only show GPU data, which is useful if you only care about graphics card temps.

Frequently Asked Questions

Is 80°C safe for my CPU?

Yes, 80°C under load is normal and safe for most modern CPUs. Intel and AMD chips are designed to run at temps up to 90–100°C without damage. If you are hitting 80°C while gaming, your cooling is working as intended. Anything above 95°C is worth investigating, but 80°C alone is not a problem.

Why does my GPU temp show as 0°C or missing?

Some graphics cards do not report temperature to third-party apps, or the driver is not installed correctly. Update your GPU driver from NVIDIA, AMD, or Intel's website. If temps still do not show, use your graphics card's official software — NVIDIA GeForce Experience or AMD Radeon Software — which always has access to GPU temps.

Can I check temps on a laptop?

Yes, HWiNFO works on Windows laptops and Macs Fan Control works on MacBooks. Laptop temps run higher than desktop temps because the case is smaller and airflow is restricted. Idle temps of 50–60°C and load temps of 80–90°C are normal for laptops. If your laptop is consistently above 95°C, clean the vents with compressed air or take it to a repair shop to have the fans cleaned.

Do I need to monitor temps all the time?

No. Check temps once a month or when your PC feels hot or loud. If temps are normal and your PC is not throttling, you do not need to watch them constantly. Only set up continuous monitoring if you are troubleshooting a specific problem or overclocking your PC.

What is the difference between CPU and GPU temperature?

CPU temperature is your processor's heat; GPU temperature is your graphics card's heat. Both matter, but they respond to different workloads. CPU temps spike when you are doing heavy computing (video encoding, compiling code). GPU temps spike when you are gaming or doing graphics work. Both should stay below 90°C during normal use.