AERIX GPU Open calculator
Browser-based · No install

GPU Temperature
Calculator

Predict graphics card temperatures and understand how airflow affects GPU cooling.

Open Aerix Calculator How it works

Fast engineering estimate — not a CFD simulation.

Overview

What affects GPU temperature?

GPU temperatures depend not only on the graphics card cooler, but also on case airflow and fan placement. The same card can run noticeably hotter or cooler depending on the build around it.

Graphics card board power
Cooler design (open-air vs blower)
Fresh intake reaching the card
Vertical vs horizontal mounting
Case restriction and exhaust
Ambient room temperature
Workflow

How Aerix estimates GPU temperature

Aerix helps estimate GPU thermal behavior in your complete PC configuration — combining the card's cooler with the airflow your case and fans actually deliver to it.

1

Enter your build

Select your case, GPU, fan layout and approximate graphics-card power.

2

Compare airflow setups

Change intake fans, panels or GPU orientation and watch the estimated GPU temperature react.

3

Get a GPU estimate

Aerix returns an estimated GPU temperature and shows whether the card is airflow-starved or well fed.

Worked example

A GPU with its own intake barely reacts

When a graphics card already has a direct intake path, changes aimed at the CPU may leave the GPU almost unchanged. The GPU cares most about the air right in front of it.

The build

CaseLian Li A3-mATX
GPURTX 4070 SUPER
GPU coolerOpen-air, 3-fan
Bottom intake2 fans
Rear exhaust1 fan
Top fans2 fans
Scenario A Top exhaust
GPU70°C
CPU77°C
Scenario B Top intake
GPU70°C
CPU71°C

The GPU holds at 70°C across both layouts — it already draws fresh air from the bottom intake sitting right under it. To move a GPU that is already fed, you usually have to change its intake, not the top fans.

Try this build in Aerix

Reading GPU numbers

Edge temperature vs hotspot

Graphics cards report more than one temperature. The edge (or "GPU") temperature is the general reading most tools show; the hotspot is the hottest single point on the die and always runs higher. A large gap between them can point to mounting or paste issues rather than case airflow.

Edge / GPU temperature

The broad reading Aerix estimates and most monitoring tools display first.

Hotspot temperature

The hottest point on the die — naturally higher, and normal to see above the edge reading.

A wide gap is a clue

A very large edge-to-hotspot gap often means cooler contact, not the case, is the limit.

Questions

Frequently asked

What is a safe GPU temperature?
Most modern graphics cards are comfortable running under load in roughly the 60–85°C edge-temperature range and are designed to throttle before damage. Cooler is quieter, but a warm GPU under a heavy game is usually fine.
What is GPU hotspot temperature?
The hotspot is the hottest single point on the GPU die, always higher than the edge (GPU) reading. Seeing it above the edge temperature is normal; a very large gap can indicate a mounting or paste problem.
Does case airflow affect GPU temperature?
Yes. An open-air cooler pulls air from inside the case and pushes it back into it, so the fresh air your case supplies directly changes GPU temperature. A blower card is less dependent on case airflow.
Does mounting the GPU vertically make it hotter?
It can. A vertical mount close to a glass side panel may restrict the card's intake and let it recirculate its own warm air, raising temperatures unless there is enough clearance and airflow.
Why is my real GPU temperature higher than the Aerix estimate?
Likely causes include a restrictive front panel, dust buildup, a cramped card-to-panel gap, high ambient temperature, an aggressive fan/power profile or aging thermal paste on the card.
More Aerix calculators

Related tools

PC Airflow Calculator

Estimate CPU & GPU temperatures from your case, fans and cooler.

CPU Temperature Calculator

Estimate CPU temps from cooler class, TDP and case airflow.

PC Cooling Calculator

Balance component heat and airflow before you buy hardware.

Estimate your build in the browser

Pick your case, cooler, GPU and fans — then compare cooling scenarios side by side.

Open Aerix Calculator