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.
SystemCheck
Browser stress test · free, no install
PassMark PerformanceTest
Native full-system suite
Dimension by dimension
What each tool is
SystemCheck is a browser-based stress test. Its standard run is 4 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 3 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 Windows benchmark suite. Its standard tests cover CPU, 2D and 3D graphics, memory and disk, and an Advanced Test Suite adds networking, physics and GPU compute. By its Microsoft Store listing (checked 29 October 2026) the basic software is free and does not expire, and the Advanced Test Suite is free for 30 days.
PassMark's most visible asset is its baseline database: its listing says a result can be compared with over a million computers worldwide, which makes most parts 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.
- Its baseline set is far larger than SystemCheck's result history, which is new.
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 install, and the full run is not a time-limited trial.
- 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's basic tests are free and do not expire, and its Advanced Test Suite is free for 30 days, by its Microsoft Store listing.
- 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.