I have question about 1,5 ghz ang 1,7ghz kernels. Is it huge different compare to 1,2? Did phone is faster or have better performance in games or what? And if they are safe for the phone? I have HTC Sensation.
Yeah, usually, the higher clock frequency, the better performance. It also means higher battery drain.
Related
What is overclocking and underclocking? What is available For our phone? How to do it?
Sent from my GT-I9003 using XDA App
Over-clocking->
By default our phone has a processor with a capability of a 1 GHz speed. But, the processor can do more. To make the processor do more speed is OVER-CLOCK. Currently, We have a Over-clock kernel of 1.1 GHz. Overclocking can heat up your phone and lessen battery life
Underclock->
If you feel your processor is heating up a lot or you dont need a large processor, there is an option to make the processor do less work at a lesser speed. This is underclock. Underclocking may give you more of battery life, but, the speed of the processor is decreased.
I dont think we have an under-clock kernel. But, here is a OC kernel:
-> http://forum.xda-developers.com/showthread.php?t=1357747
Hello guys,
Since i`ve seen so many debates about single vs dual-core, today i was bored and i tested with antutu and quadrant this thing.( I know that benchmarks isn`t a real proof in day-to-day performance )
WANT THE SCRIPTS FOR UNDERVOLTING AND FORCING CPU1 ONLINE OR OFFLINE ? See 2nd post
SO , what I actually did:
-flashed a freshly new rom ( using elegancia 3.1.0 for about 2 weeks and i found to be very stable and smooth with better battery life than any other rom i`ve tested)
-flashed latest bricked kernel min 192 mhz max 972 mhz with gpu oc @300mhz, lagfree governor, I/O deadline, both cores online via init.d script, booted and tested with antutu and quadrant and then i let the phone settle for a while to see what is the power consumption in stand-by with battery monitor widget.
-after that, i flashed bricked kernel with only max speed change to 1836 mhz, cpu1 offline via inid.d script and made those tests again
Here`s what I got:
Antutu: 4827 (both cores online, clocked @ 972 Mhz)
Quadrant: 2592
BMW: -19mA
Antutu: 4593 ( cpu1 offline, clocked @ 1.836 Ghz )
Quadrant: 3393 ( cpu1 offline, clocked @ 1.836 Ghz )
BMW: -28mA
Those numbers doesn`t reflect exactly the user experience. Some apps opened faster with 2 cores, some faster with only 1 core clecked at higher speed. The only major difference i noticed was in the browser( stock ICS browser) where the more fluid experience was with both cores on.
I`m gonna test those 2 configuration further to see which one has better battery and post some screenshots.
I will add a poll to see which configuration you think is the best.
Be aware that SoC are not created equaly, so the UV script or OC will NOT work with all devices.
Unrar the archive and choose what you want
This files needs to be copied in /system/etc/inid.d and then set the right permissions ( read: all 3 needs to be checked; write: owner checked; execute: same as read) . You need a file explorer that has access up to root ( i recommand Root exploer)
Benchmarks should always be done using Performance governor for consistency
Michealtbh said:
Benchmarks should always be done using Performance governor for consistency
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I knew that, but i wanted a more real-life experience, and in my opinion there isn`t that much difference in lagfree vs performance. I ran benchmarks 2 times and the scores where almost identical
Please be aware that because of the instruction sets hard coded at low level into the cpu it doesn not mean that 2x 900mhz cpu cores is equal to 1x 1800mhz cpu core because of the way in which the second core is utilised. Its exactly the same with pc's hence why sometimes an AMD cpu with 2 cores can give a better real world performance benchmark than an intel cpu with 4 cores. the same applies vice versa, it just depends on what instruction sets were used and how the cpu is used. Benchmarking stuff like this is not a reliable way to test
Jonny said:
Please be aware that because of the instruction sets hard coded at low level into the cpu it doesn not mean that 2x 900mhz cpu cores is equal to 1x 1800mhz cpu core because of the way in which the second core is utilised. Its exactly the same with pc's hence why sometimes an AMD cpu with 2 cores can give a better real world performance benchmark than an intel cpu with 4 cores. the same applies vice versa, it just depends on what instruction sets were used and how the cpu is used. Benchmarking stuff like this is not a reliable way to test
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Thanks (I'd use thanks button,but i'm limited to 8 oer day) for clarifying this for me and any other users, this post should be sticky because many members on xda think that way. I am aware that 2x900 doesn't equal 1x1800, but I didn't knew the exact explanation. The only reason that I did these tests was to see which configuration gives the best battery life. Their not equal, but acording to antutu, quadrant and end user experience they are comparable
Thanks for your time in doing these tests... It might not be reliable but it was interesting to know bout it... Im curious between the two tests though, which test puts the cpu under more stress? the first test shows awesome result on the battery so being single core might stress the cpu more, im guessing
Sent from my HTC Sensation using Tapatalk
AndroidNeophyte said:
Thanks for your time in doing these tests... It might not be reliable but it was interesting to know bout it... Im curious between the two tests though, which test puts the cpu under more stress? the first test shows awesome result on the battery so being single core might stress the cpu more, im guessing
Sent from my HTC Sensation using Tapatalk
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33% left and it's running for15 hours with 2 cores
I flashed Sebastion's overclock kernel and installed System Tuner. I see that I have option to set the CPU overclocked to 1.8 GHz, I didn't even know it could go this high. Then I see "CPU0" and "CPU1". Are these both cores? Because if they are, I only see "CPU0" being overclocked. Does this mean only one core is being used at such a high speed?
I've set it for 1.51GHz and "ondemand". That seems reasonable, right? Any other suggestions?
Some kernels allow you to clock to 1.9, but its not recommended as you can easily fry your chip. CPU 0 and CPU 1 are the two cores, you are correct. I'm not entirely sure if one or both cores are overclocked, but my suspicions would be only the first core, simply because the 'ondemand' governor only turns on the second core if the first one is unable to run process the load efficiently. 1.5 is pretty reasonable yes, but you can even make it lower an still get good performance, an lower clock speeds mean slightly better battery too. I'm running at 1.4 with a badass governor, which is better again for battery consumption.
Sent from my Sensational pokeball that caught Charmeleon 5.1.0!
So I have a quad core 1.5ghz. I under clocked it to 486mhz. I have been watching the processors and at what speed they are running. I find that most of the time for basic things one or 2 are running. But if I raise it to 594mhz or 702 the second one and the rest kick on less. Would it be more energy efficient to run one at a slightly faster speed vs running 2,3,4 more often at a slower speed? I locked the cpu max speed. For some reason the second one would run faster than what it was set at. So maybe I should undo the force lock because it might be more energy efficient to let that processor be the only one to go faster?
Does anyone know if it will eventually be possible to overclock the GPU in the Nexus 5 to match the S800 MSM8974AB chip?
The S800 chip in the Nexus 5 is the MSM8974 chip which has the GPU clock of 450MHz, but there is another version of the S800 chip called the MSM8974AB which has the GPU clocked at 550MHz.
Here is a link for anyone that is interested in seeing all the differences between the MSM8974 and the MSM8974AB
http://www.androidbeat.com/2013/09/difference-snapdragon-800-2-2ghz-2-3ghz/
It will definitely be possible with kernels. Don't know how safe it will be to overclock by 100mhz, but on my HTC One Elemental X gives the option to overclock from stock 400mhz to 550 (very bad for the device though). So the Nexus 5 will definitely be able to hit 550 as well.
Adreno 330 overclock 450MHz to 550MHz
Hello,
Is there any update about this?
I Overclocked the CPU to 2.5GHz via a custom kernel, but I am unable to pass the 450MHz of the CPU.
Please let me know if you have a solution.
Thanks
which device use MSM8974AB chip?
I have the Z1 also, which has the same chipset as the N5. There is a custom kernel for the z1 that OCs the GPU to 533mhz which I run stably with excellent battery life. So I'm sure it's possible to do the same with the N5 since it's the same processor. I'm sure one of the smart devs here can look at the github posted here: http://forum.xda-developers.com/showthread.php?t=2448613
my GOD, what did i just read
http://www.qualcomm.com/media/blog/...gies-newest-snapdragon-805-ultra-hd-processor
Adreno 420? As a heavy gamers, this thing really make me annoying -_-
I have 600MHz GPU overclock implemented in my kernel for the Xperia Z1, which uses the lower binned version of the msm8974 (the one that comes with a stock clock-speed of 2.2GHz).
We have 450/487.5/533/600 MHz scaling steps.
You can take a look at the OC commits here, it's pretty straight-forward:
https://github.com/RevolutionDev/android_kernel_sony_msm8974/commit/4136fb7713887a0561d399ecc1adc3af55d65a88
https://github.com/OmniHonami/android_kernel_sony_msm8974/commit/96dd342f1015a71e9139de8057ee16b86c6005ff
Androguide.fr said:
I have 600MHz GPU overclock implemented in my kernel for the Xperia Z1, which uses the lower binned version of the msm8974 (the one that comes with a stock clock-speed of 2.2GHz).
We have 450/487.5/533/600 MHz scaling steps.
You can take a look at the OC commits here, it's pretty straight-forward:
https://github.com/RevolutionDev/android_kernel_sony_msm8974/commit/4136fb7713887a0561d399ecc1adc3af55d65a88
https://github.com/OmniHonami/android_kernel_sony_msm8974/commit/96dd342f1015a71e9139de8057ee16b86c6005ff
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@Androguide.fr
Is it possible to control also gpu voltage?
You got 600mhz at stock voltage?
Carter07 said:
@Androguide.fr
Is it possible to control also gpu voltage?
You got 600mhz at stock voltage?
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It is, but not yet implemented on the nexus 5 custom kernels.
Also mhz does not mean voltage (V) or (uVolts on this case). MHz means a frequency of 1 million times per second (used on this case for CPU, GPU, RAM speed)
GUGUITOMTG4 said:
It is, but not yet implemented on the nexus 5 custom kernels.
Also mhz does not mean voltage (V) or (uVolts on this case). MHz means a frequency of 1 million times per second (used on this case for CPU, GPU, RAM speed)
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True, but @Carter07 is right that if the maximum allowed voltage is too low the GPU won't be able to sustain higher frequencies, as those demand more power.
The 600MHz OC is stable with the stock voltage, though, at least on the Z1 it is.
Androguide.fr said:
True, but @Carter07 is right that if the maximum allowed voltage is too low the GPU won't be able to sustain higher frequencies, as those demand more power.
The 600MHz OC is stable with the stock voltage, though, at least on the Z1 it is.
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indeed, I misinterpreted him
You can flash Bricked kernel and use Kcontrol to force-overclock your gpu up to 650...but I wouldn't recommend anything above 550 since you will get little to no performance and it'll consume a lot more battery
Is there a huge performance boost noticable if you oc the cpu? And what's about the battery life?
lol98lol98 said:
Is there a huge performance boost noticable if you oc the cpu? And what's about the battery life?
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There's no recognisable boost in performance apparently. And yes,battery drain will be higher if you raise voltages and you also risk damage to the core.
Sent from my Nexus 5 using Tapatalk
lol98lol98 said:
Is there a huge performance boost noticable if you oc the cpu? And what's about the battery life?
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CPU or GPU? Some users reported less lags (OC GPU) with energy-consuming games.