Intel sSpec’s

The sSpec number is also known as the specification number and SL code. It is a five character string (SL36W, XL2XL, etc.) that is printed on the processor for identification. The sSpec is typically found on the top side of the processor.

Processors within a family of the same speed can have different sSpecs. The reason is because when a processor stepping change occurs, a new sSpec is generated for that stepping. It is also true that the same stepping level can also have more than one sSpec associated with it.

Click on a table header to sort the data.

sSpec Processor / Chip Model Example 1 Example 2 Example 3 Notes
Q004 Pentium Pro 200 Enci's Virtual Museum CPU Shack Museum Chip Image Database 1M
Q008 Pentium Pro 166 512k
Q009 Pentium Pro 166 512k
Q010 Pentium Pro 200 Chip Image Database 512k
Q011 Pentium Pro 200 Enci's Virtual Museum 512k
Q013 Pentium Pro 200 Enci's Virtual Museum 1M
Q033 Pentium Pro 180 512k
Q034 Pentium Pro 200 Enci's Virtual Museum 256k
Q035 Pentium Pro 180 256k
Q036 Pentium Pro 200 256k
Q076 Pentium Pro 200 256k
Q083 Pentium Pro 200 256k
Q084 Pentium Pro 200 256k
Q0352 Pentium 60Mhz
Q0394 Pentium 60Mhz
Q0399 Pentium 60Mhz
Q0400 Pentium 60Mhz
Q0412 Pentium 60Mhz
Q0466 Pentium 60Mhz
Q0625 Pentium 60Mhz
Q0816 Pentium Pro 133 256k
Q0813 Pentium Pro 150 256k
Q0815 Pentium Pro 133 Enci's Virtual Museum 256k
Q0816 Pentium Pro 150 Enci's Virtual Museum 256k
Q0822 Pentium Pro 150 256k
Q0825 Pentium Pro 150 256k
Q0826 Pentium Pro 150 Enci's Virtual Museum 256k
Q0828 Pentium Pro 180 256k
Q0859 Pentium Pro 200 256k
Q0860 Pentium Pro 180 256k
Q0861 Pentium Pro 200 Enci's Virtual Museum 256k
Q0864 Pentium Pro 166 512k
Q0865 Pentium Pro 200 512k
Q0868 Pentium Pro 200 Enci's Virtual Museum 256k
Q0871 Pentium Pro 180 256k
Q0872 Pentium Pro 200 256k
Q0873 Pentium Pro 180 256k
Q0874 Pentium Pro 200 Enci's Virtual Museum 256k
Q0907 Pentium Pro 180 256k
Q0908 Pentium Pro 200 256k
Q0909 Pentium Pro 200 256k
Q0910 Pentium Pro 180 256k
Q0918 Pentium Pro 166 Enci's Virtual Museum 512k
Q0920 Pentium Pro 200 512k
Q0924 Pentium Pro 200 512k
Q0929 Pentium Pro 166 512k
Q932 Pentium Pro 200 512k
Q935 Pentium Pro 166 Enci's Virtual Museum 512k
Q936 Pentium Pro 200 Enci's Virtual Museum 512k
SL22S Pentium Pro 180 Enci's Virtual Museum 256k
SL22T Pentium Pro 200 Enci's Virtual Museum 256k
SL22U Pentium Pro 180 Enci's Virtual Museum 256k
SL22V Pentium Pro 200 Enci's Virtual Museum 256k
SL22X Pentium Pro 166 Enci's Virtual Museum 512k
SL22Z Pentium Pro 200 Enci's Virtual Museum 512k
SL23L Pentium Pro 180 Enci's Virtual Museum 256k
SL23M Pentium Pro 200 Enci's Virtual Museum 256k
SL245 Pentium Pro 200 Enci's Virtual Museum 256k
SL247 Pentium Pro 200 Enci's Virtual Museum 256k
SL254 Pentium Pro 200 Enci's Virtual Museum 256k
SL255 Pentium Pro 200 Enci's Virtual Museum 256k
SL259 Pentium Pro 200 Enci's Virtual Museum 1M
SL25A Pentium Pro 200 Enci's Virtual Museum 1M
SL2FJ Pentium Pro 166 512k
SU103 Pentium Pro 180 Enci's Virtual Museum 256k
SX753 Pentium 60Mhz Enci's Virtual Museum
SX853 Pentium 60Mhz Enci's Virtual Museum
SX842 Pentium 60Mhz Enci's Virtual Museum
SX925 Pentium 60Mhz Enci's Virtual Museum
SX948 Pentium 60Mhz Enci's Virtual Museum
SX974 Pentium 60Mhz Enci's Virtual Museum
SY002 Pentium Pro 150 Enci's Virtual Museum 256k
SY010 Pentium Pro 150 Enci's Virtual Museum 256k
SY011 Pentium Pro 150 Enci's Virtual Museum 256k
SY012 Pentium Pro 180 Enci's Virtual Museum 256k
SY013 Pentium Pro 200 Enci's Virtual Museum 256k
SY014 Pentium Pro 150 Enci's Virtual Museum 256k
SY031 Pentium Pro 180 Enci's Virtual Museum 256k
SY032 Pentium Pro 200 Enci's Virtual Museum 256k
SY034 Pentium Pro 166 Enci's Virtual Museum 512k
SY039 Pentium Pro 180 Enci's Virtual Museum 256k
SY040 Pentium Pro 200 Enci's Virtual Museum 256k
SY047 Pentium Pro 166 Enci's Virtual Museum 512k
SY048 Pentium Pro 200 Enci's Virtual Museum 512k
SZ949 Pentium 60Mhz

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