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[POLL] CPU Binning

17th December 2012, 07:37 PM |#1  
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Hey fellow Nexus 4 owners, I heard a lot of rumors that the "Nexus 4 uses left-over parts" from the Optimus G. To that end, I want to find out the general quality of our CPUs.

Basically, when Qualcomm makes the APQ8064 chip that you see in our Nexus 4, there are 4 different "types" based on how it meets their quality standards. These are Slow, Nominal, Fast, and Faster. The main difference IIRC between these types is how stable each can handle undervolting. CPUs that are "Fast" for example come pre-configured at a lower nominal voltage than a "Nominal" type CPU, and more so than a "Slow" type. (Does this account for how some people's phones generate less heat? Maybe, maybe not. IIRC, there's like only a -100mV difference between Faster and Slow out of the box, however Faster CPUs should be able to handle lower voltages than Slow-type.)

To find out what binned CPU you have, I recommend the following:

YOU MUST BE ROOTED!

1) Install Terminal Emulator

2) Reboot your phone

3) Open Terminal Emulator, and type:

Code:
su 
dmesg | grep PVS
A line should be outputted that tells you what type you have.

For example, mine is NOMINAL. http://i.imgur.com/MUXrs.png

Please post your results in the following poll! (This poll began on /r/Nexus4, so rather than recreating the poll using XDA's system, I'm hoping to just get more results from here.)

http://poll.pollcode.com/qars3c
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17th December 2012, 07:56 PM |#2  
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17th December 2012, 07:57 PM |#3  
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I guess I got lucky, mine says "Fast"
17th December 2012, 08:00 PM |#4  
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Quote:
Originally Posted by timgt

I guess I got lucky, mine says "Fast"

according to the poll, most people have fast..

faster would be "lucky" ^^
17th December 2012, 08:02 PM |#5  
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Yeah, the average so far seems to be "Fast." Please post in the poll whatever results you get! I would like to see a good sample size from this!
17th December 2012, 08:10 PM |#6  
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17th December 2012, 08:18 PM |#7  
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The CPU doesn't have anything to do with LG using leftover parts or not. It's Qualcomm that does the binning, not LG.
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17th December 2012, 08:41 PM |#8  
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17th December 2012, 08:53 PM |#9  
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Quote:
Originally Posted by red12355

The CPU doesn't have anything to do with LG using leftover parts or not. It's Qualcomm that does the binning, not LG.

I know.. read my post. I want to dispel that rumor.
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17th December 2012, 08:59 PM |#10  
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