https://news.naver.com/main/read.nhn?mode=LSD&mid=sec&sid1=101&oid=241&aid=0003097651

(잘 골라야 발열 없다? 100만원 넘는 '갤S21' 양품 뽑기 논란)

 

 

이거 뉴스 보고 궁금해서 찾아봤습니다.

 

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You can get a text dump of the kernel log by going to your dialpad *#9900# - "copy to sdcard(include CP RamDump)"

Grab log folder from internal storage, go to recovery folder, 'last_kmsg' (you can search for the recovery folder, it is usually hidden).

This is then followed in the logs by voltage tables (how many volts are required at each processor frequency).

little cpu group = CPUCL0
mid cpu group = CPUCL1
big cpu group = CPUCL2
GPU = g3d

 

(아래 사진의 경우 2 2 2 1 그룹이 되어있는 셈입니다.)

 

 

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근데 이제 이 그룹 번호가 높을 수록 전압을 덜 먹는 거 같다는 분석이 나옵니다.

 

국내기사에서는 이걸 이제 그냥 발열로 적어두었고요.

 

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Preliminary table of results below, rows in blue are the average per chip, rows in white are average per bin. 4 is the highest bin seen so far.

Takeaway being there is anywhere from 6-8.6% difference in voltages at different bins at max frequency.

GPUs all appear to be in one bin, but again fit the 6% difference here.

Low number of data points but up to 2.5% difference between bins.

Ultimately I don't know how much difference this makes in real life, as I don't know the power draw from things like the screen, but thought it would be interesting to see CPU differences.

Only have a few examples of lowest Frequency voltages, but two tables below show differences between a 2:2:2:1 chip and 2x 3:3:3:1 chips

 

 

 

 

곧 막힐수도 있으니 한번 확인해보시는것도...