Database Info

[Q] Dangers of overclocking the Sensation's GPU (Adreno 220)

Hey there,
I've read some threads about the dangers of overclocking an Android-device in general. I'm aware of these dangers.
But in my feeling overclocking the sensation is a little different.
Most custom roms set CPU-speed to 1500MHz each core, which is the native clock of the chipset (or am I'm wrong?). No problem so far.
But with tweaking the CPU often the GPU is overclocked, too.
Now the point: What are the dangers of overclocking the GPU?
Does it make sense to overclock just the CPU without the GPU? Is it possible?
What are your experiences with overclocking (e.g. with IsertCoin or RevolutionHD) the GPU?

What you have to remeber with regard to overclocking is that your not alone in doing it when you use one of the custom roms.
Many thousands of ppl are running overclocked handsets and the first things you see happening from overclocking to far is your handset not booting up or locking up well before you would do any physical damage to the handset i would say.
I have run my sensation at 1800 cpu speed and it started ok but locked up when doing one of the benchmark tools , i rebooted and reduced the speed a little but all running fine with no concerns with regard to overheating

So there is a hardware protection to prevent serious damage?

I dont know enough about the handset to say if there is or not i suspect there will be something , but have you ever tried to overclock a graphics card on a pc you get so far and it wont display or something like that so you reduce it.
Heat with any electronic component is i problem and overclocking something increases that heat, but when you get to a certain point your phone will lock freeze reboot etc usually before any damage is done.
If you have any concern about destroying your phone by overclocking the simple answere is that you dont overclock it .

Diydude said:
[...]
If you have any concern about destroying your phone by overclocking the simple answere is that you dont overclock it .
Click to expand...
Click to collapse
Yes you're right of course, but i just want to get a feeling for this topic... i just try to decide if it's a good idea to use RevolutionHD, which is overclocked from the beginning.
And to get a feeling, I just asked about the risks, because the benefits are clear for me

To answer your question, yes, the sensation comes with thermal protection that helps against overheating. If the device becomes to hot, it(in most cases) shuts itself down until it cools. The CPU in the sensation is underclocked when it's shipped at 1.2Ghz(1188), but the true spec of the CPU is actually 1.5Ghz(1536). HTC underclocks the CPU to 1.2 to save on battery consumption. I personally have ran my phone just fine at the 1.5Ghz setting, I've even pushed it up to 1.6Ghz(1620) and it ran fine with the exception it did get just a little hot, but nothing to worry me. That being said I've since underclocked my CPU to 1296 and all is well. And afterall, how fast do you really need your phone to be before you take it too far and fry the cpu?? The sensation is fast right out of the box and even faster when using a NO sense rom, such as cm7(my personal fav)
Side Note : The new sensation XE ships with the cpu at it's original clock speed of 1.5Ghz.. both sensations have the 'exact' same cpu.
In regards to your GPU question, I have mine set @ 300mhz and not 320. The sensations GPU comes clocked at 266.I've ran it @ 320 and it ran just fine.. for me it's more of a personal preference. My graphics look just fine clocked @ 300mhz.. Below is a quote about the chipset and the new one coming out.
"With Adreno 225 Qualcomm improves performance along two vectors, the first being clock speed. While Adreno 220 (used in the MSM8660) ran at 266MHz, Adreno 225 runs at 400MHz thanks to 28nm. Secondly, Qualcomm tells us Adreno 225 is accompanied by "significant driver improvements". Keeping in mind the sheer amount of compute potential of the Adreno 22x family, it only makes sense that driver improvements could unlock a lot of performance. Qualcomm expects the 225 to be 50% faster than the outgoing 220."
if this helped, give the thank you button a punch
p.s. I've ran both insertcoin & revolution HD and both ran fine.. I just really prefer no sense roms

Quakeworld said:
To answer your question, yes, the sensation comes with thermal protection that helps against overheating. If the device becomes to hot, it(in most cases) shuts itself down until it cools. The CPU in the sensation is underclocked when it's shipped at 1.2Ghz(1188), but the true spec of the CPU is actually 1.5Ghz(1536). HTC underclocks the CPU to 1.2 to save on battery consumption. I personally have ran my phone just fine at the 1.5Ghz setting, I've even pushed it up to 1.6Ghz(1620) and it ran fine with the exception it did get just a little hot, but nothing to worry me. That being said I've since underclocked my CPU to 1296 and all is well. And afterall, how fast do you really need your phone to be before you take it too far and fry the cpu?? The sensation is fast right out of the box and even faster when using a NO sense rom, such as cm7(my personal fav)
Side Note : The new sensation XE ships with the cpu at it's original clock speed of 1.5Ghz.. both sensations have the 'exact' same cpu.
In regards to your GPU question, I have mine set @ 300mhz and not 320. The sensations GPU comes clocked at 266.I've ran it @ 320 and it ran just fine.. for me it's more of a personal preference. My graphics look just fine clocked @ 300mhz.. Below is a quote about the chipset and the new one coming out.
"With Adreno 225 Qualcomm improves performance along two vectors, the first being clock speed. While Adreno 220 (used in the MSM8660) ran at 266MHz, Adreno 225 runs at 400MHz thanks to 28nm. Secondly, Qualcomm tells us Adreno 225 is accompanied by "significant driver improvements". Keeping in mind the sheer amount of compute potential of the Adreno 22x family, it only makes sense that driver improvements could unlock a lot of performance. Qualcomm expects the 225 to be 50% faster than the outgoing 220."
if this helped, give the thank you button a punch
p.s. I've ran both insertcoin & revolution HD and both ran fine.. I just really prefer no sense roms
Click to expand...
Click to collapse
some sources say adreno 220 can be overclocked to 400mhz .... bdw how can i overclock ...is der a app like setcpu for it ?????

rohit choudhary said:
some sources say adreno 220 can be overclocked to 400mhz .... bdw how can i overclock ...is der a app like setcpu for it ?????
Click to expand...
Click to collapse
a few time ago some other user reported the same thing about adreno 220
but i think it is too high that value and it is impossible for gpu to handle such a value
in order to overclock the gpu you have to flash another kernel

[POLL] Tested Dual-core ( 972 mhz) vs Single-core ( 1.836 Ghz)

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
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
33% left and it's running for15 hours with 2 cores

Note 3 not going over 1497600 mhz

First I'd like to say excuse my ignorance. So my note 3 was lagging bad after the update to the newest software so I decided to root my device. Not running a custom rom or anything but the main reason I did so was to be able to set my cpu to certain frequencies. So I have done the root. And have tried multiple app from no frills to trickster mod. But each one I have. It will not let me change the frequency above 1497600 mhz. Each time I click on save no matter what frequency above that one it always reverts to 1497600. I use xposed installer and thought I found a module to fix it (dvsf disabler) but if that is what fixes it ive still had no luck. The phone doesnt run horrible but there is a little bit of lag. Does anyone know why this is happening, and how I coukd fix this?

Anyone have any idea? If this is posted in the wrong forum please let me know, I'm just looking for a way around this.

If your CPU frequency is anywhere close to 1,497,600 MHz, I would like to have a word with the laws of physics, and inform it that it is broken. Simply put, there is a limit on how high your CPU can be clocked before it becomes hot as hell and unstable. The highest clock speed I have even heard of a CPU reaching is around 7,000 MHz, which was a very highly overclocked Pentium 4. Newer high end x86_64 CPUs generally don't tend to get overclocked to much higher than 4,000-5,000 MHz, although they are much more efficient with those cycles than a P4, and have the advantage of hyperthreading. Your phone's CPU honestly shouldn't be clocked higher than 3,000 MHz, and if it's a rather weak CPU, it might not even be able to be overclocked to higher than 2,000 MHz.
Or is it perhaps the case that you meant to say your CPU is clocked at 1,497.6 MHz (decimals are important!), and it won't go higher, because as I have just mentioned, there is a limit to how high you can go?

Basically 1.4 ghz. There have been people overclocking at way above that as the cpu is supposed to be around 2.3ghz.

Max CPU speed

Both cpuz and CPU spy report 1500 mhz as max speed for the processor. Is this normal?

Yes. Ish. The phone has 2 processor chips clocked at different speeds. One for general pottering about, and the other for heavy stuff. But for some reason, apps only report what they are told about the light weight processor, which is at 1.5Ghz.
But on CPU-Z, I was able to catch a glimpse of the other 4 cores of the heavy duty ones touch 2100Mhz (2.1Ghz) briefly. So the phone does perform correctly, but the apps themselves don't report the info as we'd like/expect with a 2 processor device. Yet.

Why is cpu frequency only 1.3Ghz?

I'm using stock emui on android 4.4.2. I recently rooted my phone and noticed that the cpu frequencies are really weird. First of all all cpu over/underclocking apps showed max of 1.3 Ghz and min of 1.2 Ghz. Shouldn't max be 1.7 Ghz? Even more weird was i couldn't change the frequencies to anything else. I wanted to reduce the heat that 1.2 Ghz min frequency causes and thats why I rooted in first place. I managed to get frequencies stay by using Trickster mod's freq lock. But I'm still wondering if its normal for my phone to get hot and can I set max freq to 7.8 Ghz for gaming? And no, the power saving thing aka phone manager doesn't change anything else but increase battery life when I disable it.

That's for the A7 cluster. A15 cluster goes up to 1,7 GHz.

Tup3x said:
That's for the A7 cluster. A15 cluster goes up to 1,7 GHz.
Click to expand...
Click to collapse
I just noticed in another cpu tweaking app that it showed only some of cores can go up to 1.7 Ghz and other only to 1.3 Ghz. This furthermore confirms it that only half of cores are cabable of 1.7 Ghz. http://www.devicespecifications.com/en/model-cpu/6dee2d53
Too bad this info isn't almost anywhere at all.