How is time measured in computers

The best benchmarks: Measure your PC speed yourself

Friedrich Stiemer, Ines Walke-Chomjakov

How fast are the PC, SSD and graphics card really? You can give yourself the answer with the right test tools. We present the best programs.

Do you now have a lot of free time in the evenings and on the weekends because it is sensible that you no longer go out of the house because of the corona crisis? Then use this time for a comprehensive performance test: How fast are your PC, its SSD and the graphics card really? With the right tools, you can immediately check how fast and stable your computer is. The performance test also makes sense if you have bought a new system or want to accelerate your existing PC with additional hardware. That is why we present you the essential freeware tools to comprehensively check the computer or individual components such as graphics card or SSD. If the PC does not meet your speed expectations, crashes or is annoying with high operating noise, you can immediately take countermeasures, such as replacing additional components or improving the cooling.

At a glance: important test tools for hardware



PC Mark 10

Measures the overall performance of the computer using various practical tests.


Iometer measures the performance of storage media during input and output processes.

AS SSD benchmark

Detailed memory test with synthetic and practical runs

Crystal Disk Mark

Benchmark tool for measuring the performance of SSD, HDDs and other storage media

3-D mark

Review and assessment of graphics card performance


Tool for measuring the frame rates and for recording the gameplay


Use complex, mathematical options to exhaust the processor.

Cinebench R23

Checks the CPU performance and differentiates between single and multi-core performance.


Checks how fast your home network is actually transmitting data.

PC Mark 10 from UL: Complete benchmark for PCs and notebooks

EnlargeUL's PC Mark 10 is a comprehensive system test that puts a load on all components.

UL (formerly Futuremark) has been offering an extensive range of benchmark tools for PCs for many years: The current PC Mark 10 is used to test the overall performance of your system in order to achieve a result comparable to other systems in the form of a score after the test run deliver.

In the free Basic Edition of PCMark 10, your system goes through a certain sequence of everyday tasks in home use that your PC is supposed to master. These include video conferencing, internet surfing and playing less complex games. But the Basic Edition also already includes the editing of photos and videos.

If you want to change something in the test runs, switch to the paid versions: the Advanced Edition is available for private users, and the Professional Edition is available for professional testers. In both versions, additional test environments such as a creative test (focus on demanding multimedia tasks) and work test (complex spreadsheets) are available to test only these scenarios.

But the free version is sufficient for home use, as it already offers you a meaningful test result that is very suitable for comparisons between different systems. In this way, you can immediately determine whether your PC delivers the performance that you can expect given the built-in components.

Iometer: Measure the performance of your NAS system

EnlargePut the performance of your NAS to the test with the free Iometer.

With the free Iometer you can easily put your NAS to the test. It carries out input and output processes in the network in order to utilize the system as much as possible with the help of a stress test. So that you don't have to worry about all the settings and parameters, you can use the publicly available configuration file from Dell for the tests, for example: It contains numerous practical scenarios in order to deliver results that are as realistic as possible, since the NAS is fully utilized.

After a short installation, Iometer can be used straight away. To do this, first accept the license conditions and click on "Folder" in the Iometer interface. Now download the mentioned configuration test file "SIM-User-Scenarios-Workload-Requirements-2.1.0.icf" from the Dell website and open it in Iometer. Then select the device to be tested and start the process by clicking on the green flag. Before starting the test, you still need to specify where the result should be saved. After about ten to 15 minutes, the test is complete and you can view your result in the destination folder.

Tip:The best CPU benchmarks and analysis tools

AS SSD benchmark: extensively test flash storage media