Does SystemCheck test storage and memory like PassMark does?

No. A browser has no API for raw disk throughput or memory bandwidth, so any figure SystemCheck published would reflect the JavaScript engine rather than the hardware. If storage or memory is what you need measured, use PerformanceTest.

The four-stage benchmark is free to run and needs no account. The detailed report is a one-time paid unlock. PassMark PerformanceTest is a paid licence with a time-limited trial.

Which has the better comparison data?

PassMark, without question. Its baseline database has been accumulating for many years and its component charts are widely referenced. SystemCheck is new and its result history is correspondingly small.

Does PassMark measure sustained load?

PerformanceTest's tests are throughput measurements rather than soak tests. PassMark's separate BurnInTest product is the one aimed at sustained stability testing. SystemCheck reports decay across a sustained load as part of its standard result.

Compare/Native full-system suite

13 dimensions · 6 where PassMark PerformanceTest is stronger

SystemCheck vs PassMark PerformanceTest

SystemCheck: a no-install read on what a PC holds under sustained load, and why it fell. PassMark: a rating of a whole Windows system, storage included, against widely cited baselines. A slow disk is something SystemCheck will never find and PerformanceTest will.

7 to us · 6 to PassMark PerformanceTest · 0 even

SystemCheck

Browser stress test · free, no install

Run the test

PassMark PerformanceTest

Native full-system suite

Dimension by dimension

Names why performance fell

Yes: the CPU curve is classified (a single step, a steady slide, a sawtooth) and the report names the likely cause with its confidence statedSystemCheck

No: a rating per component, no sustained curve and no cause

Install required

No: opens in a browser tabSystemCheck

Yes: a desktop application install

Price

Free to run; detailed report is a one-time paid unlockSystemCheck

Paid licence, with a time-limited trial

Scope of test

CPU, GPU raster, GPU path tracing

CPU, 2D and 3D graphics, memory and diskPassMark PerformanceTest

Comparison database size

New product, small result history

Very large baseline database; its component charts are widely citedPassMark PerformanceTest

Track record

New product

Maintained continuously for over two decadesPassMark PerformanceTest

Measurement precision

Directional: results move with browser, driver and background load

Runs natively with no browser translation layerPassMark PerformanceTest

Reads hardware sensors

No: the web platform exposes no temperature, power, fan or VRAM API

A native app has system-level access a browser does notPassMark PerformanceTest

Measures sustained decay

Yes: decay across a 60-second sustained multi-core load is a primary output, and the curve's shape is classified to name the likely causeSystemCheck

The suite's tests are throughput measurements; sustained soak testing is PassMark's separate BurnInTest product

Reports run-to-run consistency

Yes: run-to-run and within-run consistency are reportedSystemCheck

Reports a rating per run

Platforms

Desktop and laptop browsers with WebGL2. No mobile in v1SystemCheck

Windows is the primary platform for the full suite

Time to first result

Immediate: no download, licence or setup stepSystemCheck

Requires downloading, installing and accepting the trial

Best suited for

A no-install read on CPU and GPU behaviour under sustained load

A thorough whole-system rating against a deep baseline setPassMark PerformanceTest

What each tool is

SystemCheck is a browser-based stress test. It runs four stages (a 60-second sustained multi-core CPU load, a memory bandwidth and latency stage, a GPU raster load and a path-tracing load) in three minutes, with no install and no account for the core test. It reports throughput alongside decay and consistency over sustained load, rather than a single peak number, and it classifies the shape of the CPU curve to name why performance fell. It cannot read temperatures, power draw, fan speed or VRAM size, because the web platform exposes no API for any of them, and its results are directional rather than lab-grade.

PassMark PerformanceTest is a commercial benchmark suite that has been developed and maintained for well over two decades. It tests CPU, 2D and 3D graphics, memory and disk, and combines them into an overall PassMark rating. It is distributed as a trial that converts to a paid licence.

PassMark's most visible asset is its baseline database. The CPU and GPU charts derived from it are among the most frequently cited component reference tables on the web, and the sheer volume of submitted baselines makes almost any part findable with a directly comparable figure.

Its breadth is genuinely wider than SystemCheck's. SystemCheck measures CPU and GPU only, because those are the two things a browser can load meaningfully. There is no web API through which a disk or memory bandwidth figure could be measured honestly.

Where PassMark PerformanceTest is stronger

These are the dimensions where PassMark PerformanceTest beats SystemCheck outright. Some are structural: a browser cannot reach hardware sensors at all.

PerformanceTest covers memory and disk as well as CPU and graphics. SystemCheck cannot test either, because no browser API exposes them honestly.
Its baseline database is enormous and its derived component charts are among the most cited reference tables on the web, so almost any part has a directly comparable figure.
It runs natively with system-level access and no browser translation layer, making its measurements more precise and more repeatable than SystemCheck's.
It has been maintained continuously for over two decades, which is a track record SystemCheck simply does not have.

Where SystemCheck is stronger

It names why. PassMark rates each component; SystemCheck reads the shape of the CPU curve under sustained load and names the likely cause of a slowdown.
Free to run with no licence, trial period or install.
Runs on macOS and Linux browsers, not just Windows.
Decay and consistency under sustained load are primary outputs rather than something you assemble from repeated runs.
About three minutes from click to result, with no setup.

Which should you use?

Use PassMark PerformanceTest if…

PassMark: a rating of a whole Windows system, storage included, against widely cited baselines. A slow disk is something SystemCheck will never find and PerformanceTest will.

Use SystemCheck if…

Use SystemCheck when you cannot install or license software, when you are on macOS or Linux, or when the specific question is whether CPU and GPU performance holds up once the load is sustained rather than how the system rates overall. It is also the one to reach for when the question is why a machine got slower: the report names the shape of the loss and puts the retest next to the run it is trying to beat.

Questions

Does SystemCheck test storage and memory like PassMark does?: No. A browser has no API for raw disk throughput or memory bandwidth, so any figure SystemCheck published would reflect the JavaScript engine rather than the hardware. If storage or memory is what you need measured, use PerformanceTest.
Is SystemCheck free?: The four-stage benchmark is free to run and needs no account. The detailed report is a one-time paid unlock. PassMark PerformanceTest is a paid licence with a time-limited trial.
Which has the better comparison data?: PassMark, without question. Its baseline database has been accumulating for many years and its component charts are widely referenced. SystemCheck is new and its result history is correspondingly small.
Does PassMark measure sustained load?: PerformanceTest's tests are throughput measurements rather than soak tests. PassMark's separate BurnInTest product is the one aimed at sustained stability testing. SystemCheck reports decay across a sustained load as part of its standard result.

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