Quick Answer

GPUs run hot for four main reasons: restricted case airflow, dried-out thermal paste, dust-clogged heatsink fins, or an undersized cooler for the chip's TGP. Addressing airflow and dust costs nothing and should be done before assuming the cooler itself is at fault. Sustained gaming temperatures above 85 degrees Celsius indicate a problem worth fixing.

The Most Common Causes of GPU Overheating 🌡️

Case airflow is the first thing to check. A GPU needs cool air entering the case and a clear exit path for hot air. No intake fans or a blocked front panel means temperatures climb regardless of cooler quality. Add at least two 120 mm intake fans at the front and one exhaust at the rear or top.

Dust is the second culprit. It accumulates between heatsink fins and on fan blades, acting as insulation. Use compressed air to clear the GPU cooler from the exhaust side every six months. In dusty SA environments, monthly cleaning is not excessive. Thermal paste degradation affects cards three or more years old: the compound dries, creating air gaps that prevent heat transfer. Replacing thermal paste typically drops GPU temperatures by 10 to 20 degrees Celsius on older cards.

How Cooler Design Affects the Temperature Ceiling 🔧

Cards with copper base plates transfer heat from the GPU die into the heat pipe network faster than aluminium-only designs. DrMOS power stage components generate less VRM heat than older discrete MOSFET designs, reducing total heat the cooler must manage.

Large triple-fan vapor chamber designs outperform dual-fan cards by 8 to 12 degrees Celsius under sustained load on high-TGP chips above 200W. For lower-TGP cards like the RTX 5060 at 115W, a well-designed dual-fan cooler handles the thermal load without stress in a properly ventilated case.

Steps to Bring GPU Temperature Down 💡

Start free: clean the GPU cooler with compressed air, improve case airflow, ensure the GPU is not pressed against a side panel. If temperatures remain above 85 degrees after fixing airflow and dust, repaste the GPU with quality thermal compound applied to the die centre after cleaning the old compound with 90% or higher isopropyl alcohol.

If temperatures persist after repasting and airflow improvements, the cooler may be inadequate for the chip's TGP and a GPU upgrade is the practical solution.

TIP

Log GPU Temps Before and After Each Fix ⚡

Use HWiNFO64 to log GPU temperatures during a 30-minute gaming session before and after each change. This tells you exactly how much each intervention helped. A good conservative target is below 83 degrees Celsius under sustained full gaming load in your specific case and ambient environment.

FAQ

Is 90 degrees Celsius dangerous for my GPU?

Most modern GPUs have a design target of 83 to 88 degrees and a hard throttle point of 105 to 110 degrees. Sustained operation at 90 degrees is within spec but leaves little headroom. Keeping temperatures below 85 degrees is a sensible long-term reliability target.

Will undervolting reduce GPU temperatures?

Yes. Reducing GPU voltage by 50 to 100 mV at a given clock speed reduces heat output without performance loss in many cases. MSI Afterburner's voltage and frequency curve editor handles this and typically delivers 5 to 10 degrees Celsius of temperature reduction.

Can I add an aftermarket cooler to my GPU?

Some GPUs have compatible replacements from brands like Arctic. Check compatibility with your exact GPU model before purchasing as this modification voids most manufacturer warranties.

GPU thermals still a problem after the fixes above? Evetech stocks GPUs with properly engineered cooling solutions across all TGP tiers. Browse the graphics card category to find an upgrade with the thermal headroom your system needs.