Database Users

CPU clocked to 800Mhz

Aparently the CPU may only be clocked to 800Mhz........

If you got this from the Au website, Whirlpool, than I think they are talking about the iPhone 4, not the Galaxy S

well it's from the galaxy s thread and one of the guy who's doing the testing and stuff for samsung says this......definitely not iphone.
Guess just wait and see when it's released I suppose

huh? wat are you guys talking about? its 1ghz cpu

forums.whirlpool.net.au/forum-replies.cfm?t=1409745&p=58#r1152 is the link to the post where the user suggests it is 800mhz underclocked.

Yh, sorry, was reading a thread where they were talking about the iPhone being underclocked, just reading more, it seems it may be the case.
Will mean battery last longer, not such a bad thing, as long as it doesn't effect any of the performance of the phone

If they say 1Ghz then it is 1Ghz or else they're going to have a lawsuit on their hands. Nothing in between(except of course scaling).

I have the galaxy s and im pretty sure its 1ghz.. at least system panel tells me its 1ghz but singapore set are all 16gb model.
information from system panel:
ARMv7 Processor rev 2 (v7I)
bogomips 797.90 (may vary)
min clock 100mhz
max clock 1000mhz
on Nexus one using pershoot kernel but cpuset at 245mhz - 998mhz, it shows:
ARMv7 processor rev 2 (v7I)
bogomips 662.40 (may vary)
min clock 245 mhz
max clock 998mhz
so maybe the 8gb are down clocked?

Doubt the 8Gb version would be clocked lower. Thanks for posting your findings!

It's just the power of forums and the internet, allowing mis-information to spread at the speed of light

lol yep, looks like he was confused at the sliding clock speed....

when i ran quandrant standard it read armv7 processor rev 2 , max 1000 min 100
set frequency 800
is that normal
regards

It's 1 GHz, I checked the clock frequency with a monitoring application and it's dynamic but when required it clocks up to 1 GHz.

Intratech said:
It's 1 GHz, I checked the clock frequency with a monitoring application and it's dynamic but when required it clocks up to 1 GHz.
Click to expand...
Click to collapse
thanks for clearing this up
regards

Wait, what?
The iPhone 4 may be clocked at 800mhz?
Can someone give source on this?

Pika007 said:
Wait, what?
The iPhone 4 may be clocked at 800mhz?
Can someone give source on this?
Click to expand...
Click to collapse
I don't have a link to that claim, but I think it was Gizmodo in their testing of the iPhone 4 and iPad noted the iPad did feel faster and the web browser rendered pages faster, despite both using the A4 processor. They hypothesised that it is the same architecture CPU in both, but different clock speeds.
After all, to get 10 hours out of the iPad the teardowns and x-ray scans show about 80% of the volume inside is all battery. If the iPhone 4 and iPad had the same processor, you'd think the iPhone's battery would be pretty bad considering the far smaller volume (although smaller screen not sucking as much power).
Wouldn't be surprising. After all, the Motorola Milestone / Droid has a mild underclock, as does the Acer Liquid to preserve battery life.
Probably cheaper for Apple to only have to manufacture 1 chip (the A4), but clock at different speeds appropriate to each device's battery life.
Apple doesn't focus as much on specs though, more that the user interface feels fast and smooth. If it achieves that purpose no need to worry about numbers, whereas since we have so much choice of handsets on Android specs do make a difference for us to know depending on our needs (eg: price vs performance vs battery).

My Samsung Galaxy S is running at 800mhz it sucks... i flashed it last night with the final build of 2.2 I9000XXjP6 for the Galaxy does anybody no how i can overclock it to 1ghz thanks People

The Galaxy S has a 1 GHz CPU. However, the clock speed is lowered while not needed to save battery life, just like on any modern PC. By default it is using the conservative governor.
The iPhone4 never was supposed to get a 1 GHz CPU. Apple never disclosed the number. But those who made benchmarks estimated the clock speed at about 800 MHz since is is about 20% slower than the iPad.

There is a Galaxy Lite version in some other countries that only maxes out at 800 Mhz
i think the guy reviewing the phone got it mixed up with that

AllGamer said:
There is a Galaxy Lite version in some other countries that only maxes out at 800 Mhz
i think the guy reviewing the phone got it mixed up with that
Click to expand...
Click to collapse
He might have got mixed up, but the final 2.2 build for the Samsung Galaxy S is maxed out at 800 MHz for some stupid reason…. I’m going to flash it tonight again with a earlier build of 2.2 as I did some bench test and its only scoring a measly 900 points with the latest firmware installed.. Were as before it was scoring well over 2k…

PVS Bin ?

So how does PVS BIN affects performance ?
a cpu with pvs bin 4 is a lot better than a CPU with PVS Bin 1 ?

http://forum.xda-developers.com/showthread.php?t=2443934

szabyka95 said:
So how does PVS BIN affects performance ?
a cpu with pvs bin 4 is a lot better than a CPU with PVS Bin 1 ?
Click to expand...
Click to collapse
.... I have 4 and no... can't OC, UC, UV... basically anything besides stock values the "lot better" cpu rejects...
Might be also the custom kernels fault ... who knows
Till now the pvs bin has zero info value...

szabyka95 said:
So how does PVS BIN affects performance ?
a cpu with pvs bin 4 is a lot better than a CPU with PVS Bin 1 ?
Click to expand...
Click to collapse
[For reference] http://forum.xda-developers.com/showthread.php?t=2215710
There seems to be a bit of confusion, about the significance of the PVS value. They relate to Process Corners, and in part to threshold voltage, there is a lot more to it than that, but I'll keep it simple.
So far we've seen PVS values of between 0 to 6.
0 seems to indicate a SLOW corner, this means that its leakage current is lower than a 6, but its timings are slower. In theory, this chip should be good for power consumption, but offer less overclocking potential.
So, 6 means a FAST corner, this means that its leakage current is higher than a 0, but its timings are faster. Again, theoretically this chip offers good overclocking potential, at the expense of possibly higher power consumption.
Firstly, don't worry about it, all these chips have to pass Qualcomm's quality assurance, and lastly a higher PVS number is not necessarily the best, it depends on your priorities.

What you said was correct, I couldnt have explained it that well.
---------- Post added at 02:13 PM ---------- Previous post was at 02:10 PM ----------
PAGOT said:
.... I have 4 and no... can't OC, UC, UV... basically anything besides stock values the "lot better" cpu rejects...
Might be also the custom kernels fault ... who knows
Till now the pvs bin has zero info value...
Click to expand...
Click to collapse
Its just binning based on samples from those batches, you could still end up with an OC dud despite having higher PVS as they only sample a few and cant test every single one. But as the guy before me said they all meet quality assurance standards.
Lower voltage can mean lower heat, but there are other factors also at play.

What's your CPU PVS bin #?

Just out of curiosity, I 'd like to know what everyone's cpu PVS binning is. This makes little difference unless you're trying to undervolt, but it doesn't hurt to know.
Non-Root How To:
Use a file browser (I used Root Browser) and navigate here:
Code:
/sys/module/clock_krait_8974/parameters/table_name
Open up "table_name" as a text file. Mine read: qcom,speed3-pvs7-bin-v1. My PVS bin # being 7 on a scale of 0-15. 0 needing the most volts, 15 needing the least at corresponding frequencies (I think I got that right). Overly simplified that would be higher binning=better, but again this makes very little difference.
Here's a example of stock volatges at 2.5 GHz for the MSM8974AC Rev 1:
Code:
PVS 0- 2.5GHz @ 1.12V
PVS 7- 2.5GHz @ 1.05V
PVS 15- 2.5GHz @ 0.97V
Here's a thread from the OnePlus One forums that's helpful if you want to know more:
http://http://forum.xda-developers.com/oneplus-one/general/info-cpu-binning-concept-overclocking-t2817105/ (Note: Moto X's chipset seems most similar to the MSM8974AC Rev 1 or at least has the same binning)

Thats pretty interesting, never heard of this before.

Mine says 6. Guess mine is using a bit more volts?

Mine says 3. Huh?

5...v1 which according to one plus forums means 2.3ghz?? Sad times v2 is 2.5 apparently

Mine said pvs4, but what does that mean?
Is lower better, or higher?
I googled, but noone else seems to be sure either.

tacosrdelicioso said:
5...v1 which according to one plus forums means 2.3ghz?? Sad times v2 is 2.5 apparently
Click to expand...
Click to collapse
No where did you have this from?
The moto x has the msm8974ac and this one has 2,5GHz... According to cpu-z 2.46GHz (or more exactly 2457.6 MHz says antutu device info page)
Msm8974ab has 2.3GHz.

Yeah, the X uses the AC @ 2.5GHz. I think that's what the speed # means. The version in "table_name" is the PVS version not the CPU version. Not sure what that is though. Maybe the parameters used in sorting?

Mine says 8.

8 here as well... Damn had a 13 on my old moto x lol

jphilippon said:
Mine says 8.
Click to expand...
Click to collapse
Mine says 8 too... ... ...

Mine is also 8

6 here.
Sent from my XT1097 using XDA Free mobile app

Mines a 8

6 for me

8 also

6 here

9 here

mines a 7
Sent from my XT1092

[email protected]:/ $ cat /sys/module/clock_krait_8974/parameters/table_name
qcom,speed3-pvs8-bin-v1

PVS Bin

Update: I added a poll.
What do you guys have for PVS Bin.
PVS 5 on mine.
You do not need root, I used RootExplorer ironically enough.
Steps:
Go to sys/module/clock_krait_8974/parameters
Open table_name

PVS 7, bin v1
is it good or bad? lol

Higer the PVS number lower the voltages for the frequencies in the table.
However its not guaranteed that a higher PVS Bin CPU can OC higher than a lower binned part as they take samples when doing binning, so there could be lower binned parts that OC just as high as higher binned parts and vice a verse.
HD2Owner did a nice table here:
[GUIDE] Snapdragon 805/801/800/600 Clock & Voltage (PVS bin) guide
http://forum.xda-developers.com/htc-one-m8/general/guide-snapdragon-801-clocking-voltage-t2807173

PVS 6

Speed 3, PVS 8 v1

speed3-pvs6-bin-v1

PVS9... not useful without DooMKernel

AndroPlus said:
PVS9... not useful without DooMKernel
Click to expand...
Click to collapse
It is useful since it uses less power and heats less by CPU clock voltage ratio set by Qualcomm...
Ok just to be clear all are Speed 3 and v1 but PVS is different, mine is 8

PVS 8, you have nice one. I am usually on the low side with my luck on most devices lol.

PVS 8 for me too :good:

PVS12
Sent from my D6503 using XDA Free mobile app

PSV 11

pvs4 [emoji22]

Pvs 8. What is the highest?

I believe it's 15.

pvs4

pvs7

In my 4 exchanges this week for defects, PVS Bin increased each time lol. Went from 5,6,7,8.
PVS 8

.

Martin213 said:
pvs15
Click to expand...
Click to collapse
Wow you got the highest possible , nice.
Guys I added a poll, please vote.

Droid Turbo PVS bin

What is the PVS bin? It is a known fact that not all semiconductor chips leave the factory equal because of complicated baking process, and for most expensive complex articles like CPU and GPU manufacturers introduced a sorting practice called "binning". Qualcomm also has such scale for their chips, that consist of PVS value range from 1 to 15, to aware Android software how many voltage it should apply to CPU on a certain clock to run error free. The bigger PVS value is, the lesser power required to run CPU stable. So, the story is about energy effectiveness.
Please, share your Droid Turbo PVS bin in a poll.
How to know your bin: use file manager to go to the path /proc/cpu/, and open file msm_acpu_pvs as a text.
PVS bin value is stored as a hexadecimal, so when you see a letter instead of a digit, convert it to decimal like: A=10, B=11, C=12, D=13, E=12, F=15, and vote in the poll above. Thanks! )
(Inspired by this thread)

Mine is 3
Oops. Didn't see the options above

Cobra04 said:
Mine is 3
Oops. Didn't see the options above
Click to expand...
Click to collapse
LOL. Sorry, added poll lately ) Mine is 6.

Voted. Mines 8.
Does this essentially mean I can undervolt more before the device becomes unstable and reboots, than someone who has a PVS value of let's say 2?

iiWoodstocK said:
Voted. Mines 8.
Does this essentially mean I can undervolt more before the device becomes unstable and reboots, than someone who has a PVS value of let's say 2?
Click to expand...
Click to collapse
Yes. Probably, your SoC CPU cristal with "8" was in the center of semiconductor wafer, and mine "6" was somewhere closer to the side
The difference in voltage applied not so big, I guess, from 0 to 20mV max in your favor.
As for the "2" CPU, it is tougher, and will be auto driven by higher voltage. Or we set it manually by installing custom kernel with voltage tune support, and try to earn your effectiveness. But then, again, you can start manual control too, tuning voltage down, and Turbo with "2" will suck (

s5610 said:
Yes. Probably, your SoC CPU cristal with "8" was in the center of semiconductor wafer, and mine "6" was somewhere closer to the side
The difference in voltage applied not so big, I guess, from 0 to 20mV max in your favor.
As for the "2" CPU, it is tougher, and will be auto driven by higher voltage. Or we set it manually by installing custom kernel with voltage tune support, and try to earn your effectiveness. But then, again, you can start manual control too, tuning voltage down, and Turbo with "2" will suck (
Click to expand...
Click to collapse
Interesting! Thank you for the explanation! So I guess that's why I'm able to undervolt -70mV without encountering stability issues, where others would get reboots if they did the same.

Mine is 6 and was written as digit

I have a 64gb turbo with 2 :_( :_(

4
Sent from my XT1254 using Tapatalk

8 on xt1250

Mine was 6 (which I voted-in)
My wife's phone is 4 (which I cannot vote-in because the poll won't let me vote twice)

schwinn8 said:
Mine was 6 (which I voted-in)
My wife's phone is 4 (which I cannot vote-in because the poll won't let me vote twice)
Click to expand...
Click to collapse
) I can't double vote too, having 7 pcs by the hand. PVS bits on them are: PVS4 - 1 pcs, PVS5 - 4 pcs, PVS7 - 1 pcs, PVS9 - 1 pcs.