[R-SIG-Mac] How to determine if a Mac is Nehalem-based

[Simon Urbanek]

On Oct 20, 2010, at 5:55 PM, Steven McKinney wrote:

> Hi Mac Gurus,
> 
> I have been searching the web trying to find out how to determine if my Mac is "Nehalem-based".  I have not been able to find any discussion about how to determine this, beyond something such as "Macs built in early 2009" or similarly vague statements.  
> 

It's not vague at all, it's MacPro4,1 and MacPro5,1 models (you can use use "sysctl hw.model" to find out what you have). If in doubt, check on Wikipedia ;)

The latter uses the Nehalem architecture but I don't have a specimen of those so I can't confirm that the bug still holds true for those.

Cheers,
Simon




> Does anyone know where I can find a description of which Intel chips in a Mac
> constitute "Nehalem-based" and what R or Mac-OS scripts, commands etc
> will yield information on the CPU chip in my Mac so I can make this determination?
> 
>> From "About this Mac" I get the following information, but I'm unclear on
> what if anything in such output will reliably show whether my Mac is
> Nehalem-based.
> 
> Hardware Overview:
> 
>  Model Name:	Mac Pro
>  Model Identifier:	MacPro4,1
>  Processor Name:	Quad-Core Intel Xeon
>  Processor Speed:	2.66 GHz
>  Number Of Processors:	2
>  Total Number Of Cores:	8
>  L2 Cache (per core):	256 KB
>  L3 Cache (per processor):	8 MB
>  Memory:	32 GB
>  Processor Interconnect Speed:	6.4 GT/s
>  Boot ROM Version:	MP41.0081.B08
>  SMC Version (system):	1.39f5
>  SMC Version (processor tray):	1.39f5
>  Serial Number (system):	H00230C320H
>  Serial Number (processor tray):	C070183004XDCVHAX 
>  Hardware UUID:	482F1E2A-2588-5FA3-80AE-11BE11615B02
> 
> Any information appreciated
> 
> Steven McKinney
> 
> Statistician
> Molecular Oncology and Breast Cancer Program
> British Columbia Cancer Research Centre
> 
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