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Are there two different types of processors used in the 13.3" 2.26 ghz MBPs?

zoziw

zoziw

macrumors member
Original poster
Feb 19, 2006
69
7
Canada
I have been trying to figure out which Intel processor is used in the 13.3" 2.26 ghz MBP (the one I just purchased).

The Wikipedia entry almost makes it sound like some have a P7550 and others have a P8400. Just to clarify, I'm not talking about the difference between the base model and upgraded version of the MBP (which appears to use a P8700), I am only talking about the base model.

http://en.wikipedia.org/wiki/Macbook_pro#Models_2
 
Yes, looks like they use both. However, it also appears that the two chips are identical, minus the model number.
 
I know when I was talking to someone about undervolting their CPU ran at a lower stock voltage then mine and I could not set mine that low in coolbook (it wasn't an option) so that would make sense if there was two different processors. Sucks that I got the worse one then.
 
Does anyone actually have a P8400? I downloaded macCPUID from intel and I am running a P7550. I thought the P7550 was an OEM only version of the P8400? I don't know if any macs have that proc, but it's the only one you can easily find on the intel website with those specs, so maybe they just pulled that and surmised it? If anyone has a P8400 in their macbook can you let us know?
 
I have a P8400

MacBook Pro 5,5 13" 2.26 GHz ordered mid-june

Code: 
$ sysctl machdep.cpu.brand_string
machdep.cpu.brand_string: Intel(R) Core(TM)2 Duo CPU     P8400  @ 2.26GHz
 
J&JPolangin said:
...with the difference in thermal specs, which would be the better CPU?
Click to expand...

From Intel:

Thermal Specification: The thermal specification shown is the maximum case temperature at the maximum Thermal Design Power (TDP) value for that processor. It is measured at the geometric center on the topside of the processor integrated heat spreader. For processors without integrated heat spreaders such as mobile processors, the thermal specification is referred to as the junction temperature (Tj). The maximum junction temperature is defined by an activation of the processor Intel® Thermal Monitor. The Intel Thermal Monitor’s automatic mode is used to indicate that the maximum TJ has been reached.
 
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