Which CPU extensions can be used on my PC?

This program tests if each of the following CPU extensions can be used on your PC.

• MMX
• SSE
• SSE2
• SSE3
• SSSE3
• SSE4.1
• SSE4.2
• POPCNT
• AESNI
• PCLMULQDQ
• AVX
• F16C
• AVX2
• FMA
• SHA
• AVX512F
• AVX512CD
• AVX512DQ
• AVX512BW
• AVX512VL

If you want to test for the following CPU extensions in addition to the extensions above, use ver2 below.

• VAES
• VPCLMULQDQ
• BMI1
• BMI2
• MPX
• GFNI
• Key Locker
• CET_SS
• AVX_VNNI
• AVX512_IFMA
• AVX512_VBMI
• AVX512_VBMI2
• AVX512_VNNI
• AVX512_BITALG
• AVX512_VPOPCNTDQ
• AVX512_VP2INTERSECT
• AVX512_FP16
• AVX512_BF16
• AMX_BF16
• AMX_TILE
• AMX_INT8

How to use ver1

Click the link below to run the test program on your PC. The information about CPU Extensions support is sent to our server and analized. The result will be displayed on another page in your web browser.

Windows (Vista or later, x86/x64)

How to use ver2

Click the link below to download a zip file. Extract all files and run cpuext2.exe. The information about CPU Extensions support is sent to our server and analized. The result will be displayed on another page in your web browser.

Windows (Vista or later, x86/x64)

What information is sent to the server?

• CPU model specific information: brand string, flags to indicate CPU support for each extension.
• OS version specific information: Flags to indicate OS support for each CPU extension.

No other specific information is sent. For technical details, refer to this page.