CPU stepping confusion.

[ShintaiDK]

CPU-Z.

 

[Charles Kozierok]

What CPU-Z calls the "revision" is what most people call the "stepping", though. Including Intel. I think CPU-Z is using "stepping" to refer to a higher level family/model revision as taken from the CPUID string, and "revision" as the core stepping that everyone else uses to refer to particular chip versions.

Shintai, if you can explain in detail the meanings of Family / Ext. Family / Model / Ext. Model / Stepping / Revision, I think a lot of folks would find it helpful.

ETA: Yes, the first row is coming from the CPUID signature, 06FDh, which refers to the general family the chip comes from. "M0" is the stepping of the actual core.

 

[ShintaiDK]

As far as I know.

Stepping is the mask used. A respin would give a new stepping number.

Revision is a redesign of the core.

Family types is what major uarch design choice. Core based is 06, Netburst 0F, Pentium 05, 486 04 and so on.

Model types is the overall core version number.

 

[Liquid_Static]

What CPU-Z calls the "revision" is what most people call the "stepping", though. Including Intel. I think CPU-Z is using "stepping" to refer to a higher level family/model revision as taken from the CPUID string, and "revision" as the core stepping that everyone else uses to refer to particular chip versions.

Shintai, if you can explain in detail the meanings of Family / Ext. Family / Model / Ext. Model / Stepping / Revision, I think a lot of folks would find it helpful.

ETA: Yes, the first row is coming from the CPUID signature, 06FDh, which refers to the general family the chip comes from. "M0" is the stepping of the actual core.

THIS

 

[Rumpelstiltskin]

Do they continue updates even when they release a new generation of products? For example, if I bought a SB now would it be the final or one of the final versions of that chip I'd be getting? Also, how often do they do it? Just something I might want to consider as an overclocker, even though I won't be upgrading until later this year after Haswell is released. I will certainly want to wait if this proves to be an issue: http://techreport.com/news/24441/report-intel-haswell-suffers-from-usb-3-0-issue