How to Check Laptop Temperature: CPU & GPU Heat Guide

Windows does not display CPU or GPU temperature anywhere in its built-in settings, so checking your laptop’s actual heat requires a small free monitoring tool such as HWMonitor, Core Temp, or the diagnostics built into your laptop manufacturer’s own software. Once installed, these tools read the temperature sensors already built into your processor and graphics chip and display live readings in Celsius or Fahrenheit while you use the laptop normally.

Knowing your laptop’s real temperature matters more than most people realise, since heat is the leading cause of slowdowns, random shutdowns, and shortened battery life over time. This guide covers exactly how to check it properly, what counts as a normal range for different components, and what your specific numbers actually mean.

Why Windows Does Not Show Temperature by Default

Task Manager gives you CPU usage as a percentage and shows fan speed on some laptops, but Microsoft has never built a native temperature reading into Windows itself. This is largely because temperature sensors and their exact placement vary between every processor and motherboard manufacturer, so Windows relies on third party software that can correctly interpret each specific chip’s sensor data instead of trying to standardise something that differs at a hardware level across every laptop brand.

How to Check CPU Temperature

1. Download a reputable free monitoring tool. HWMonitor and Core Temp are both widely used, well established options that read temperature directly from your processor’s built in sensors.
2. Install and open the application.
3. Look for a reading labelled Package or Core, usually shown per individual core alongside an overall package temperature.
4. Note the number while the laptop is idle, doing nothing more demanding than sitting on the desktop, as your baseline.
5. Open a demanding task, such as a video export, a game, or a large file transfer, and watch how the temperature climbs under real load.

Most monitoring tools also show a Max value for each session, which records the highest temperature reached since you opened the program, useful for catching brief spikes you might otherwise miss while watching in real time.

How to Check GPU Temperature

1. If you have a dedicated graphics card, HWMonitor also reads GPU temperature alongside CPU data in the same window.
2. For a more detailed, gaming focused view, MSI Afterburner is a popular free tool that shows GPU temperature, clock speed, and fan speed together, and can display them as an on screen overlay while you play.
3. Watch the GPU temperature specifically while running a game or a graphics heavy task, since integrated and idle desktop use rarely pushes a graphics chip anywhere near its actual limits.

What Counts as a Normal Laptop Temperature

• At idle, a healthy CPU typically sits somewhere between 30 and 50 degrees Celsius, though this varies by processor generation and how aggressively your laptop’s fan curve is tuned.
• Under sustained heavy load, such as gaming or video editing, 70 to 85 degrees Celsius is common and generally considered within safe operating range for most modern laptop processors.
• Most Intel and AMD processors are rated to throttle performance automatically once they approach 95 to 100 degrees Celsius, as a built in protection against damage, rather than shutting down immediately.
• Dedicated graphics cards typically run a little cooler than the CPU under load, often in the 65 to 80 degree Celsius range during gaming, though this varies significantly between models.

If your readings sit noticeably above these ranges consistently, particularly at idle rather than only under heavy load, it is worth investigating further rather than assuming it is simply how your specific laptop runs.

Signs Your Laptop Is Running Too Hot

• The fan runs loudly and constantly, even during light tasks like browsing or typing a document.
• Performance noticeably drops during longer sessions of gaming, rendering, or heavy multitasking, a sign of thermal throttling kicking in to protect the components.
• The laptop shuts down unexpectedly without any warning, particularly during demanding tasks.
• The keyboard or the underside of the laptop feels uncomfortably hot to the touch during normal use.
• Battery life has dropped noticeably compared to when the laptop was new, since excess heat degrades battery chemistry faster over time.

Sudden, unexplained shutdowns in particular are one of the clearest warning signs of overheating, and if your laptop is struggling to even power on reliably at all, our guides on why aLenovo laptop turn on issue or a Dell laptop turn on problem occurs cover heat related causes alongside several other common culprits worth ruling out.

Simple Ways to Bring Laptop Temperature Down

1. Use the laptop on a hard, flat surface rather than a bed, sofa, or lap, since soft surfaces block the intake vents underneath and trap heat that would otherwise escape.
2. Clean dust out of the vents and fan using compressed air every few months, since a surprising amount of laptop overheating comes down to nothing more than blocked airflow.
3. Close background applications and browser tabs you are not actively using, since unnecessary CPU load generates unnecessary heat even when you are not aware it is happening.
4. Consider a laptop cooling pad with built in fans for regular heavy workloads like gaming or video editing, which adds extra airflow underneath the chassis.
5. Check your power settings, since a plan set to maximum performance at all times keeps the processor running harder, and therefore hotter, than necessary during lighter everyday tasks.

When Heat Points to a Bigger Problem

If temperatures stay high even after cleaning the vents, using a hard flat surface, and closing unnecessary background programs, the issue may be dried out thermal paste between the processor and its heatsink, which naturally degrades over several years of use, or a fan that is failing to spin at full speed. Both are repairable, but they are hardware jobs best left to a qualified technician rather than something to keep working around indefinitely.

Heat is not the only hardware issue worth keeping an eye on. If you have also noticed small dark marks on your display, our guide on what are dead pixels explains how to tell a genuine screen fault apart from a temporary glitch.

Renting a Laptop While Yours Is Being Repaired

If your laptop needs to go in for a thermal repair and you cannot afford the downtime, particularly for work or an upcoming event, going without is rarely necessary. Our laptop rental UK service delivers fully tested, properly cooled devices quickly, so a repair in progress does not have to mean a project on hold.

Frequently Asked Questions

Is 90 degrees Celsius too hot for a laptop CPU?

It is on the high side for sustained use, though most modern processors are rated to handle brief spikes up to around 100 degrees before automatic throttling kicks in. Consistently sitting at 90 degrees under normal tasks is worth investigating rather than ignoring.

Why does my laptop feel hot but the fan is not running?

Some thin, fanless laptops rely entirely on passive cooling through the metal chassis, so warmth without fan noise is expected. On laptops with a fan, this pattern can indicate a fan that has failed or is not spinning correctly, which is worth checking with monitoring software.

Can overheating damage a laptop permanently?

Occasional high temperatures with automatic throttling protection rarely cause lasting damage. Prolonged, repeated overheating over months or years can shorten the lifespan of the battery, processor, and other internal components.

Does closing background apps really lower CPU temperature?

Yes, meaningfully in many cases. Background apps and excess browser tabs consume processing power even when minimised, and that processing directly generates heat, so reducing unnecessary load is one of the simplest ways to bring temperatures down.

How often should I clean the vents to prevent overheating?

Every three to six months for typical use is a reasonable guideline, though a laptop used in a dusty environment or around pets may benefit from more frequent cleaning.