FurMark: The Ultimate GPU Stress Test

Stress your system with a widely relied-on OpenGL and Vulkan workload. FurMark is built to load the GPU heavily so you can judge stability, sustained performance, and how well cooling keeps up.

Get FurMark v1.38.0 Explore Features

Used by a huge community of PC builders, overclockers, reviewers, and labs worldwide.

What is FurMark?

On Windows, FurMark applies a punishing GPU workload while keeping the installer footprint modest. Fur-style rendering drives the card hard so you can observe behavior under sustained load.

Often called a "GPU burner," it is a staple for tuning and reviews: you can expose weak cooling, shaky overclocks, or marginal hardware before those issues appear in everyday use.

Free & Open Source

Lightweight (~12MB)

Core Capabilities

Beyond a simple load generator, FurMark bundles practical diagnostics: presets, APIs, monitoring hooks, and checks that help you interpret what the card is doing.

Intensive Stress Testing

Runs the well-known "furry donut" scene to drive power draw and heat as high as your settings allow.

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Advanced Benchmarking

Switch between OpenGL and Vulkan and use consistent resolution presets—1080p, 1440p, and 4K—for apples-to-apples comparisons.

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Artifact Scanner

Looks for rendering faults that often trace back to heat, memory strain, or an overclock that is not quite stable.

Learn more

Who Uses FurMark?

Labs, reviewers, builders, and gamers alike reach for FurMark when they need a blunt, repeatable GPU workout.

Overclockers

PC Builders

Hardware Reviewers

Hardcore Gamers

QC Labs

Repair Techs

Why FurMark?

Game-style benchmarks tell one story; FurMark targets maximum sustained load so you can judge power, thermals, and headroom more directly.

Feature	FurMark	3DMark	Unigine
Maximum Power Draw	Extreme (100%)	High (70-80%)	Moderate (60-70%)
Artifact Detection	Real-time Scanning	Manual Observation	No
File Size	~12 MB	~6 GB	~1 GB
Price	Free	Paid ($29.99+)	Free/Paid

Ready to test your hardware?

Grab the build and see why so many people default to FurMark when they want a no-nonsense GPU torture test.

Download for Windows

Advanced GPU Diagnostic Features

Years of graphics testing experience show up in presets, monitoring, and stability checks—not just a frames-per-second readout.

Stress Testing

Intensive GPU Burn-in Test (Furry Donut)

The fur-rendering path is deliberately brutal: it aims for peak thermals and power draw so you can see whether the card and power delivery stay composed under worst-case load.

Push VRM and capacitors to maximum load.
Verify cooling system efficiency under extreme conditions.
Identify unstable overclocks in minutes.

How to run a proper stress test

Benchmarking

OpenGL and Vulkan Benchmark Support

You can treat it as a controlled benchmark on OpenGL or Vulkan, which makes it easier to line up results across vendors, architectures, and driver generations.

Preset Testing

Standardized 1080p, 1440p, and 4K presets for global leaderboard comparison.

Anti-Aliasing

Test with MSAA (up to 8x) to measure impact on frame rates and image quality.

Monitoring

Real-time GPU Temperature & GPU-Z Integration

Live telemetry—temperatures, clocks, utilization—can appear beside the render, and you can log runs to review throttling or clock swings after the fact.

GPU-Z & GPU Shark

Native support for industry-standard monitoring tools for detailed hardware info.

Temperature Graphing

Track temperature spikes and thermal throttling behavior in real-time.

LOG_SCAN_STATUS: DETECTING_ARTIFACTS...

Artifact Scanner Active

Our scanner detects "sparkles" or texture stretching that signals a GPU is failing or overclocked too high.

Stability

Artifact Scanning for Hardware Flaws

Crashes are only one signal. The artifact scanner hunts for subtle framebuffer glitches that often point to memory strain or an unstable core clock—issues easy to overlook in motion.

"FurMark's artifact scanner saved my build. It detected memory errors that only showed up after 20 minutes of testing, which would have ruined my gameplay sessions later."

Technical Documentation

Registry keys and command-line switches for advanced users who want scripted or unattended test runs.

Registry Configuration

Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Software\Geeks3D\FurMark]
"Width"=dword:00000780
"Height"=dword:00000438
"Fullscreen"=dword:00000000
"MSAA"=dword:00000000
"Benchmark"=dword:00000000
"BurnIn"=dword:00000001

CLI Arguments

# Run a 1080p benchmark automatically
FurMark.exe /width=1920 /height=1080 /run_mode=1 /nogui

# Run a 15-minute stress test with logging
FurMark.exe /burnin /duration=900000 /log_gpu_data=1

# Run in Vulkan mode
FurMark.exe /vulkan /benchmark

Ready to see your GPU's score?

Install the current build and stack your score next to other runs from around the world.

Download Free Version

Get the Official FurMark v1.38.0

Pull the newest Windows build—still free and compact—built for recent 64-bit releases from Windows 7 through 11.

Download for Windows (exe)

Compatible with Windows 7, 8, 10, and 11 (64-bit)

12.4 MB

Verified Secure

Version 1.38.0 Changelog

NEW
Added support for NVIDIA GeForce RTX 40 Super Series.
FIX
Fixed artifact scanner sensitivity on Vulkan API.
NEW
Integrated GPU-Z 2.57.0 and GPU Shark 0.31.0.
UPD
Updated translations for 12 languages.

Security & Trust

Treat checksums and official hosting as part of your routine—grab binaries only from this site when you want the authentic package.

SHA-256 Checksums

Verify your download to ensure the file hasn't been tampered with. Use tools like HashTab or PowerShell to verify.

f8d4e9c7a6b5d4c3e2f1a0b9c8d7e6f5a4b3c2d1e0f9a8b7c6d5e4f3a2b1c0d

Antivirus False Positives

Some antivirus engines might flag FurMark as a "miner" or "riskware" due to its extreme hardware load. Rest assured, FurMark contains NO malware or mining code. It is a legitimate stress testing tool used by professionals.

Learn more about our security policy

Expert Guides & Troubleshooting

Walk through preparation, safe durations, and common failure modes so you can stress-test without needless surprises.

Quick Links

CRITICAL: Safety First

FurMark is a "GPU Burner" designed to pull maximum power. Do not run FurMark if you have:

An inadequate or low-quality power supply (PSU).
Poor case airflow or non-functional GPU fans.
An extremely high manual overclock without testing smaller increments first.

How to Run a Proper Stress Test

1

Preparation

Close all other intensive applications and monitoring tools that might conflict. Ensure your GPU drivers are up to date. Open a hardware monitor like GPU-Z to track secondary sensors.

2

Configure Settings

Start with a standard preset (e.g., 1080p). Enable "Artifact Scanner" to automatically detect stability issues. If testing an overclock, start with "Windowed" mode to easily exit if the system hangs.

3

Monitor and Observe

Run the test for 15-30 minutes for a quick stability check, or 2 hours for a thorough "burn-in" verification. Watch the temperature curve—it should level off and stay within safe limits (usually below 85-90°C).

Troubleshooting Common Problems

Thermal Throttling

If you see your clock speeds dropping or the frame rate becoming inconsistent, your GPU is likely thermal throttling.

Solution: Check your GPU fans, clean out dust from the heatsink, or consider undervolting/re-pasting the GPU if it's an older model.

System Shutdown/Crash

A total system shutdown during FurMark usually indicates a Power Supply Unit (PSU) failure. The extreme power draw of the "GPU Burner" can trigger OCP (Over Current Protection).

Solution: Test with a higher-wattage PSU or reduce the power limit in your GPU tuning software to see if the crashes stop.

Frequently Asked Questions

Straight answers on safety, run length, scores, crashes, multi-GPU setups, and antivirus chatter.

On healthy, well-cooled systems, yes—within reason. Expect very high power and temperatures by design. Keep fans working, airflow sensible, and remember that modern cards throttle when silicon gets too hot. Skip marathon sessions if cooling is marginal.

Scores are meaningful relative to the same GPU and preset. Compare against others with matching hardware on public leaderboards; higher numbers usually mean more headroom and a stable run under that workload.

For a quick stability check, 15 to 30 minutes is usually enough. For a thorough "burn-in" or to verify long-term cooling stability, 1 to 2 hours is recommended. If your GPU survives 2 hours without artifacts or thermal throttling, it is likely very stable for gaming and professional workloads.

This is almost always a sign of an inadequate Power Supply Unit (PSU). FurMark pushes the GPU to draw its maximum rated power. If your PSU cannot handle the load, it will trigger its internal safety protections and shut down the PC to prevent damage. It could also be due to extreme CPU or GPU overheating causing a thermal shutdown.

Yes, FurMark supports multi-GPU setups (SLI/Crossfire). You can select which GPU to test in the settings or run multiple instances to stress all cards simultaneously.

No. FurMark is a legitimate software tool. However, because it puts extreme load on hardware, some antivirus software might flag it as "Potentially Unwanted Software" or "Riskware." This is a false positive. Always ensure you download FurMark from furmark.cc to get the clean, official version.

Still have questions?

Check out our detailed guides or visit the community forums for more support.

Read the Guides Security Policy

Verified Security

Trust & Transparency

We publish a demanding tool on purpose—here is how we think about safety, privacy, and what you accept when you run it.

Security Commitment

Official builds do not include malware, spyware, or cryptocurrency miners. Because the app touches the GPU at a low level, we treat reproducible, verifiable binaries as non-negotiable.

Releases are digitally signed so Windows and you can confirm the file matches what left our pipeline—not a repack from another host.

Why antivirus software sometimes flags FurMark:

Because FurMark uses undocumented API calls to push GPUs to their absolute limits, some "heuristic" antivirus engines may flag this behavior as suspicious or "riskware." This is a false positive related to the nature of stress testing software.

Ethical Usage Policy

You decide when to load the hardware. FurMark is meant for diagnostics, validation, and learning—not covert monitoring or data harvesting.

Transparency: We clearly communicate the risks of extreme stress testing.
Non-Intrusive: FurMark does not collect personal data or phone home.
Educational: We provide resources to help users understand their hardware limits.

Legal Usage & Disclaimer

USE AT YOUR OWN RISK.

FurMark is designed to push your graphics card to its thermal and power limits. This may lead to system instability, crashes, or in extreme cases (e.g., faulty hardware, poor cooling), permanent hardware damage.

By using FurMark, you agree that the developers and distributors of this software are not responsible for any damage to your hardware or loss of data. It is the user's responsibility to ensure adequate cooling and a high-quality power supply before running any stress test.

Always monitor temperatures in real-time and stop the test immediately if temperatures exceed the manufacturer's safe operating range.