Cheap Thermal Paste Causes Overheating in Nvidia RTX 40-Series GPUs

Extensive tests reveal that poor-quality thermal paste is leading to high temperatures and performance issues in modern graphics cards.

Igor’s Lab found that substandard thermal paste is the main cause of overheating in Nvidia RTX 40-series GPUs.
The paste degrades quickly, causing hotspot temperatures to exceed 100°C, even with optimized airflow.
Replacing the factory-applied paste with high-quality alternatives significantly reduces temperatures.
Manufacturers use cheap paste to cut costs, but it leads to performance degradation over time.
Users can fix the issue themselves, but it may void their warranty.