FurMark OpenGL vs Vulkan Results: What to Compare
Quick answer
OpenGL and Vulkan use different rendering paths; scores from different APIs should not be treated as interchangeable measurements.
Can I compare FurMark OpenGL and Vulkan scores directly?
OpenGL and Vulkan use different rendering paths; scores from different APIs should not be treated as interchangeable measurements.
Prepare a controlled Windows test
FurMark is a deliberately demanding graphics workload and should not be treated as a routine background task. Make sure the computer has adequate cooling and normal airflow, close other graphics-heavy programs, and locate the manufacturer’s published operating limits for your exact graphics card. If a system already has cooling problems, do not begin the test.
Choose an API, preset and resolution for a baseline. Record the renderer and driver. Repeat the same combination before and after a change rather than switching APIs between runs.
Keep conditions consistent
If one API behaves differently, investigate graphics driver support and the particular rendering path. An API-specific error is not enough to diagnose bad hardware.
For repeatable results, preserve the FurMark major version, graphics API, preset, resolution, anti-aliasing mode, driver version and Windows power configuration. Keep a record of whether the GPU started cool or had just completed another workload. Changing several of these at once makes a before-and-after comparison unreliable.
Understand the results
Keep an OpenGL history separate from a Vulkan history. Confirm practical stability in the applications that matter to you.
Observe the trend of temperatures and clocks rather than one peak value. A completed run demonstrates how the particular device handled that particular test; it does not certify the GPU, power supply, memory or overall PC. If performance varies, compare readings from the same system and consider a second, less intense real-world workload.
Stop conditions and next steps
End the run immediately if cooling no longer appears effective, the screen displays corruption, the graphics driver repeatedly resets, Windows freezes, or temperatures approach the manufacturer’s stated limit. Do not disable thermal or electrical protections. Allow cooling time before troubleshooting and avoid repeating crashes just to reproduce a result.
For a broader introduction, see how to use FurMark. For deeper context on this topic, use the related detailed guide, or browse the complete Windows guide library.
Frequently asked questions
Can I compare FurMark OpenGL and Vulkan scores directly?
OpenGL and Vulkan use different rendering paths; scores from different APIs should not be treated as interchangeable measurements.
Does passing this test guarantee that my GPU is healthy?
No. A passing stress test cannot rule out problems under other APIs, games or application workloads. Combine supervised measurements with normal usage and hardware documentation.
Should I maximize the power limit to improve the result?
No. Follow the hardware manufacturer’s published limits and do not defeat safety protections to obtain a higher benchmark score.