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OCCT alternatives: 2 apps ranked by verified data

Facts checked Nov 1, 2026AppBreakup editorialHow we rank

Common reasons people leave OCCT: free tier limits test duration and adds waits between tests, and commercial use needs a paid licence. We ranked 2 alternatives by how directly each one replaces OCCT, then by reviews, real visits and how recently each app's facts were checked against its own website. FurMark currently ranks first.

Quick comparison

#AppPricingOpen sourcePlatformsVerified factsScore
1FurMark logoFurMarkFreeNoWindows, Linux5 of 566.5
23DMark logo3DMarkFree plan + paidNoWindows, macOS, Android +15 of 562.6
  1. FurMark logo

    1. FurMarkTop pick

    Best for: PC builders and overclockers checking GPU stability and cooling quickly

    FreeWindows, Linux

    66.5

    score / 100

    Why switch from OCCT

    Free with no time limits for GPU-only stress testing, if you don't need CPU or memory tests.

    Pros

    • Free and quick to run
    • Very heavy GPU load exposes unstable overclocks and cooling
    • Windows and Linux builds, including ARM64 Linux
    • Command-line support for scripted tests

    Cons

    • Synthetic load that doesn't reflect real gaming performance
    • No macOS version
    • Tests only the GPU, not CPU or memory
    Visit FurMark Details and reviews
    How this score is calculated
    Editorial fit ×0.3100
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is FurMark a good OCCT alternative?

    Verified facts

    5 of 5 verified
    Price
    Free
    Checked Oct 29, 2026geeks3d.com(opens source in a new tab)
    Platforms
    Windows and Linux
    Checked Oct 29, 2026geeks3d.com(opens source in a new tab)
    Graphics APIs
    OpenGL and Vulkan
    Checked Oct 29, 2026geeks3d.com(opens source in a new tab)
    ARM64 Linux build
    Yes
    Checked Oct 29, 2026geeks3d.com(opens source in a new tab)
    Rebranded editions
    MSI Kombustor, ASUS ROG Edition
    Checked Oct 29, 2026geeks3d.com(opens source in a new tab)
  2. 3DMark logo

    2. 3DMark

    Best for: Gamers and reviewers who want comparable GPU scores against other systems

    Free plan + paidWindows, macOS, Android, iOS

    62.6

    score / 100

    Why switch from OCCT

    Industry-standard benchmark scores and stress tests, also covering phones and Macs.

    Pros

    • Scores comparable with a large database of other systems
    • Tests for everything from phones to ray-tracing desktops
    • Install only the tests you need via Steam
    • Cross-platform tests for Windows, Mac, Android and iOS

    Cons

    • Most tests and stress modes need the paid edition
    • Large download if you install every test
    • Single-seat licences need an internet connection
    Visit 3DMark Details and reviews
    How this score is calculated
    Editorial fit ×0.387
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is 3DMark a good OCCT alternative?

    Verified facts

    5 of 5 verified
    Platforms
    Windows, macOS, Android, iOS
    Checked Nov 1, 2026benchmarks.ul.com(opens source in a new tab)
    Store
    Steam
    Checked Nov 1, 2026benchmarks.ul.com(opens source in a new tab)
    Windows on Arm
    Supported for several tests
    Checked Nov 1, 2026benchmarks.ul.com(opens source in a new tab)
    Graphics APIs
    DirectX 12, Vulkan, Metal
    Checked Nov 1, 2026benchmarks.ul.com(opens source in a new tab)
    Minimum OS
    Windows 10, 64-bit
    Checked Nov 1, 2026benchmarks.ul.com(opens source in a new tab)

The best OCCT alternative for…

The highest-ranked app in this list for each need.

FurMark logo

Best OCCT alternative for most people

FurMark

Free with no time limits for GPU-only stress testing, if you don't need CPU or memory tests.

FurMark logo

Best OCCT alternative for a free option

FurMark

Free with no time limits for GPU-only stress testing, if you don't need CPU or memory tests.

3DMark logo

Best OCCT alternative for a free plan you can upgrade

3DMark

Industry-standard benchmark scores and stress tests, also covering phones and Macs.

3DMark logo

Best OCCT alternative for Mac

3DMark

Industry-standard benchmark scores and stress tests, also covering phones and Macs.

FurMark logo

Best OCCT alternative for Windows

FurMark

Free with no time limits for GPU-only stress testing, if you don't need CPU or memory tests.

FurMark logo

Best OCCT alternative for Linux

FurMark

Free with no time limits for GPU-only stress testing, if you don't need CPU or memory tests.

3DMark logo

Best OCCT alternative for iPhone and Android

3DMark

Industry-standard benchmark scores and stress tests, also covering phones and Macs.

OCCT alternatives: common questions

What is the best alternative to OCCT?

FurMark ranks first right now. Free with no time limits for GPU-only stress testing, if you don't need CPU or memory tests.

Is there a free alternative to OCCT?

Yes. FurMark (free) and 3DMark (free plan + paid) have a free option. Check each app's verified facts for current plan limits.

Is there an open-source alternative to OCCT?

None of the 2 alternatives in this list is open source.

Which OCCT alternatives work on Linux?

FurMark runs on Linux.

Why do people switch from OCCT?

The complaints we hear most: free tier limits test duration and adds waits between tests; commercial use needs a paid licence; no macOS version.

How is this list ranked?

Every app is scored with the same published formula: how directly it replaces OCCT, reviews (weighted by verification), visits from AppBreakup, how recently its facts were checked against its own website, and reader votes.