Guide Computer Software Benchmark + Stress Testing + Identification Software WinSat - Windows System Assessment Tool Updated February 08 2026
All of these commands need to be ran in an Administrator command prompt.

Run the full WinSat tests (even if it has ran before).

Copy to Clipboard Winsat formal -restart clean

Copy to Clipboard Winsat formal -restart clean Windows System Assessment Tool Running the Formal Assessment ... > CPU LZW Compression 1105.04 MB/s > CPU AES256 Encryption 15413.89 MB/s > CPU Vista Compression 2842.31 MB/s > CPU SHA1 Hash 9115.28 MB/s > Uniproc CPU LZW Compression 97.31 MB/s > Uniproc CPU AES256 Encryption 1003.34 MB/s > Uniproc CPU Vista Compression 247.87 MB/s > Uniproc CPU SHA1 Hash 712.94 MB/s > Memory Performance 39141.50 MB/s > Direct3D Batch Performance 42.00 F/s > Direct3D Alpha Blend Performance 42.00 F/s > Direct3D ALU Performance 42.00 F/s > Direct3D Texture Load Performance 42.00 F/s > Direct3D Batch Performance 42.00 F/s > Direct3D Alpha Blend Performance 42.00 F/s > Direct3D ALU Performance 42.00 F/s > Direct3D Texture Load Performance 42.00 F/s > Direct3D Geometry Performance 42.00 F/s > Direct3D Geometry Performance 42.00 F/s > Direct3D Constant Buffer Performance 42.00 F/s > Video Memory Throughput 155684.00 MB/s > Dshow Video Encode Time 0.00000 s > Dshow Video Decode Time 0.00000 s > Media Foundation Decode Time 0.00000 s > Disk Sequential 64.0 Read 2528.13 MB/s 9.1 > Disk Random 16.0 Read 66.61 MB/s 6.8 > Total Run Time 00:01:43.66



Check the speed of Drive C:
Copy to Clipboard winsat disk -drive c

Copy to Clipboard winsat disk -drive c Windows System Assessment Tool ... > Disk Random 16.0 Read 49.85 MB/s 6.5 > Disk Sequential 64.0 Read 2451.39 MB/s 9.1 > Disk Sequential 64.0 Write 3298.86 MB/s 9.3 > Average Read Time with Sequential Writes 0.059 ms 8.9 > Latency: 95th Percentile 0.167 ms 8.9 > Latency: Maximum 2.097 ms 8.8 > Average Read Time with Random Writes 0.067 ms 8.9 > Total Run Time 00:00:04.97



Check the speed of Drive C, show extra Verbose output with more details on test:
Copy to Clipboard winsat disk -drive c -v



Some other command line options can be found at these links:
https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2012-r2-and-2012/cc742157(v=ws.11)
https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2012-r2-and-2012/cc742175(v=ws.11)
https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/winsat-mem
https://deploywindows.com/2013/03/06/use-winsat-and-determine-how-fast-my-hard-disk-is/



Check the speed of Drive C:, but repeat test to take longer. Valid Count options are 1-50.
Copy to Clipboard winsat disk -drive c -count 15




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