No single free tool covers everything PassMark does. The usual set: Cinebench or Geekbench for CPU, 3DMark for GPU, CrystalDiskMark for storage. CPU, memory and GPU under sustained load, with the cause named, from a browser: SystemCheck.
Why people look for an alternative
- Its Advanced Test Suite is free for 30 days; after that only the basic tests remain.
- It requires a native install, which is not always possible on a managed or borrowed machine.
- Its breadth means each individual component test is less deep than a specialist tool for that component.
Source: PassMark Software Pty Ltd (Microsoft Store listing), checked 29 October 2026
The options
Most of these are not SystemCheck, because for most of these jobs they are the better answer.
UserBenchmark
A benchmarking program that tests CPUs, GPUs, SSDs, HDDs, RAM and USB drives and lets you upload the result to compare.
- Best for
- Comparable breadth to PassMark, with free testing slots.
- Limitation
- Its rankings have been criticised and some enthusiast boards ban links to it, and in 2024 it charged $10 a year to run during periods of high use. Treat the sub-scores as the useful output.
Source: Wikipedia, checked 29 October 2026
Cinebench + 3DMark + CrystalDiskMark
Three specialist tools covering CPU rendering, GPU and storage respectively.
- Best for
- Depth. Each is stronger in its own domain than any single component test inside a whole-system suite.
- Limitation
- Three installs, three separate runs, and no combined system rating at the end.
Source: Maxon, checked 29 October 2026; UL Solutions, checked 29 October 2026; Crystal Dew World, checked 29 October 2026
Geekbench
A cross-platform CPU and GPU-compute benchmark.
- Best for
- Covering CPU and GPU compute in one tool across operating systems.
- Limitation
- No storage testing, and short runs miss sustained behaviour.
Source: Primate Labs, checked 29 October 2026
SystemCheck
This siteA browser-based stress test. Four stages (a sustained multi-core CPU load, a memory bandwidth and latency stage, a GPU raster load and a path-tracing load) with no install and no account for the core test. It reads the shape of the CPU curve to name why performance fell: a power budget expiring, cooling falling behind, or something else contending for the cores.
- Best for
- Finding out whether a machine holds its performance under sustained load and, when it does not, why, on any desktop OS, without installing anything.
- Limitation
- It cannot read temperatures, power draw, fan speed or VRAM. No browser exposes an API for them. Results are directional rather than lab-grade and move with browser, driver and background load.
When PassMark PerformanceTest is still the right choice
PassMark is still the most convenient answer when you want one native application to cover CPU, GPU, memory and disk in a single pass and produce a combined system rating. Assembling equivalent coverage from free tools means several installs and no unified score.
Where SystemCheck fits beside PassMark PerformanceTest
SystemCheck answers one question that a single score does not: whether a machine keeps its speed once it has been working for a while. The free browser stress test loads the processor, memory and graphics in turn and records throughput the whole way through, then names the shape of the curve. The methodology sets out each stage, and the guide to reading benchmark results explains how to tell a real difference from run-to-run variance.
If the reason you are switching is a symptom rather than a score, start from the symptom instead: the diagnosis pages cover a PC that slows down after a few minutes, and the fix articles rank the causes of slow, hot and loud machines with a check for each. For a single part, the CPU stress test and GPU benchmark pages explain what each stage measures.
Questions
- What is the best free PassMark alternative?
- PassMark PerformanceTest's own basic tests are free and do not expire, by its Microsoft Store listing; only the Advanced Test Suite is limited to 30 days. For another tool of similar breadth, UserBenchmark tests the same components, with the caveat that its rankings are disputed. Otherwise a combination of free tools per component gets you deeper results at the cost of convenience.
- Do any of these test storage?
- PassMark PerformanceTest and UserBenchmark do, and CrystalDiskMark is a dedicated disk benchmark. 3DMark's Storage Benchmark is a separate purchase. Cinebench and Geekbench measure the processor and graphics. SystemCheck's main run does not test storage; its standalone storage test measures the browser's own storage path, not the drive directly, because a browser has no access to raw disk performance.
Alternatives to other benchmarks
- UserBenchmark alternativesLooking for a UserBenchmark alternative? Here are the tools worth considering for CPU, GPU and whole-system testing, and which one fits which job.
- 3DMark alternativesLooking for a 3DMark alternative for GPU testing? Here are the options worth considering, what each is genuinely best at, and where 3DMark still wins.
- Cinebench alternativesLooking for a Cinebench alternative? Compare the main CPU benchmarking and stability options, what each measures, and which fits your actual question.
- Geekbench alternativesLooking for a Geekbench alternative? Here are the CPU and system benchmarking options worth considering, and the specific job each one is best at.