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Overclock GPU

Hi there, is it possible to overclock GPU?

i guess on most devices overclocking DOES overclock cpu and gpu at the same time

elgubbo said:
i guess on most devices overclocking DOES overclock cpu and gpu at the same time
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i don't think so bcs they are different hardware parts and when you overclock cpu it is sth about cpufrec but yeah when you overclock cpu it effects graphics too bcs it makes processes faster ...( i just think like that bcs of being a linux user open source foreveeeeeeeeeer )

If we could overclock the gpu on the android then the android would take over the world

kifno said:
If we could overclock the gpu on the android then the android would take over the world
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android has already became a legend by being the first os in USA(Apple's IOS is losing users. )

So it is still impossible, right?

kanek06 said:
So it is still impossible, right?
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i think it is possible ( when i think that they are like little computers) but i dunno how to do it.

to start, youd probably want to dissect the software driver and see what it offers.

Well, when we will able to overclock GPU - we should not buy new and new devices, because our present devices are old. But how about temperature? Will battery get hot like in overclocking CPU?

well, from what i understand the gpu for most devices shares space with the cpu on dye and that there is a divider of sorts that keeps the gpu speed a percentage of the cpu.. and since cpus can oc better then gpus, the whole reason we can oc is due to the fact that devs have figured out how to uncouple the clock increase of the cpu from the gpu, otherwise the gpus clock would limit the cpu.. now overclocking itself doesnt increase heat and most of the time (depending on what governor is used) it doesnt always run at full clock so theres not a high constant current drain causing the battery to get hot (unless you run an intensive app continually) also, you wont see the cpu overheat as long as the voltage stays stock, but increasing cpu voltage is how you will get past the th max (thermal maximum)
now if you could adjust that divider you could oc the gpu..

[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 .
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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
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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 ?????
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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

Overclocking or underclocking

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

[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
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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 don't understand overclocking

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!