Stress testing your GPU is a crucial step in assessing its performance and stability. Reddit users recommend several options for the best GPU stress tests, each with unique features to suit specific needs.

FurMark is a highly regarded benchmark among overclockers and enthusiasts for its ability to push GPUs to their limits and uncover instability issues. It is a free benchmark available for Windows and Linux, with several tests from 720p to 4K resolutions.
Unigine Heaven is another popular benchmark that is free and available for Windows and Linux. It features stunning visuals and demanding graphics that can push GPUs to their limits. It has several tests that range from 720p to 4K resolutions.
3DMark is a paid benchmark available for Windows and Linux. It is widely used by professionals and enthusiasts for its accurate and reliable results. With several tests from basic to advanced, it can suit a range of systems.
MSI Kombustor is a free benchmark available for Windows, highly recommended by overclockers and enthusiasts. It can push GPUs to their limits, and features tests from 720p to 4K resolutions.
OCCT is a free benchmark available for Windows that can push GPUs to their limits and uncover any instability issues. It features several tests ranging from basic to advanced.
Selecting a GPU stress test depends on your specific needs and preferences. Some benchmarks are suitable for overclocking and extreme performance, while others may be better for basic stability testing. It is important to ensure that your system can handle the stress test you choose, as some benchmarks may be more demanding than others. Stress testing your GPU can be dangerous if not done properly, so it is crucial to follow instructions carefully and monitor your system closely during the test.
Overall, the recommended GPU stress tests on Reddit are highly regarded by enthusiasts and professionals. When choosing a stress test, it is essential to consider your needs and preferences, and ensure that your system can handle the test. Following instructions carefully and monitoring your system during the test can prevent any potential damage or instability issues.