Related
Same devices like HTC HD2 with Snapdragon, when you overclock the CPU, the same happens with GPU...
But in our case ( defy ) is not the same...
By default ( where i know ) PowerVR SGX530 it's runing AT 200Mhz, but can run higher, than 200mhz ( 400mhz i think ).
We can overclock the GPU to get more 3D performance, witouth sacrificate the battery?
Why do you think the GPU can run at twice the default clock speed?
If there is an article you have read that states or suggests this - please provide a link.
by default it's runing at 110Mhz ( i think )
http://en.wikipedia.org/wiki/PowerVR
the default clock is 200Mhz, and i thing can go furher.
I have seen traces of 125mhz looking in the system files, but thats more of a guess
Sent from my Defy
tomeu0000 said:
by default it's runing at 110Mhz ( i think )
http://en.wikipedia.org/wiki/PowerVR
the default clock is 200Mhz, and i thing can go furher.
Click to expand...
Click to collapse
according to ti, it is [email protected] (all 3630 is)
well it's either CORE_CLK/6 (0x1) or "full speed" (0x0) (CONTROL_FEATURE_OMAP_STATUS)
racca said:
according to ti, it is [email protected] (all 3630 is)
well it's either CORE_CLK/6 (0x1) or "full speed" (0x0) (CONTROL_FEATURE_OMAP_STATUS)
Click to expand...
Click to collapse
Ok, but is there any way to overclock the GPU? at 250 or 300mhz maybe?
This program on the market says it can overclock GPU:
Overclocking (GPU / CPU) https://market.android.com/details?id=com.cpufree
but doesn't seem worth trying since it has a very very bad rating and comments.
Last app update was 5 months ago.
Can someone find an app worth trying?
mrolp said:
This program on the market says it can overclock GPU:
Overclocking (GPU / CPU) https://market.android.com/details?id=com.cpufree
but doesn't seem worth trying since it has a very very bad rating and comments.
Last app update was 5 months ago.
Can someone find an app worth trying?
Click to expand...
Click to collapse
I think i have used it before but it doesn't work...
Sent from my MB525 using xda premium
Would be cool if the gpu ups with CPU, but like mentioned above...I think the omap3630 is locked at 200mhz
If anyone knows how to do a gpu OC...please share
dunno about you guys, but as far as i know, the gpu is integrated in the cpu chip (its like an extra core so to say), so it should be overclocked with the cpu. and whenever i ocd the cpu, i experienced graphics improvements, so i think, thats the answer, they oc together.
zakoo2 said:
dunno about you guys, but as far as i know, the gpu is integrated in the cpu chip (its like an extra core so to say), so it should be overclocked with the cpu. and whenever i ocd the cpu, i experienced graphics improvements, so i think, thats the answer, they oc together.
Click to expand...
Click to collapse
No they do not OC together i am afraid. Most of Android UI is being drawn by CPU and not by GPU as many thinks :/
Well, I've experienced minor changes when OCing my Defy from 1ghz to 1.3ghz, when using Neocore... it went from 39fps to 39.3 fps, but such small changes are expected, even without OC...
I'm on V6, functioning install of Flexreaper Extreme, and have setcpu installed.
Despite setcpu allowing me to go all the way up to 1.5GHz, even if I set that as the min/max the clockspeed never actually goes past 1000MHz. As best I can tell, it should be working but doesn't.
This might be a silly oversight on my part, but has anyone else seen this?
Metallkasten said:
I'm on V6, functioning install of Flexreaper Extreme, and have setcpu installed.
Despite setcpu allowing me to go all the way up to 1.5GHz, even if I set that as the min/max the clockspeed never actually goes past 1000MHz. As best I can tell, it should be working but doesn't.
This might be a silly oversight on my part, but has anyone else seen this?
Click to expand...
Click to collapse
No not seen this before.
Have you given setcpu root access ? When superuser asked for it did you allowed it?
I have similar setup. When you say "never goes past 1000MHz" do you mean the Settings | About tablet | Device Information always shows CPU speed 1.0GHz?
I am not sure that display is actually dynamic. It always shows the same value for me even though I set and see various speeds via setCPU.
Dave
civato said:
No not seen this before.
Have you given setcpu root access ? When superuser asked for it did you allowed it?
Click to expand...
Click to collapse
It does have root access.
I will do some benchmarks to see if setting min/max to 1.5 has any gains, but I feel like the clock speed indicated in setcpu should reflect the accurate speed, which never goes over 1000MHz
EDIT: Linpack scores were more or less the same, so I know it's not OCing at all. Perhaps a wipe and clean install will be required. I patched from RF1
Not sure on the flex rom but on the tegra rom under settings>Performance , you can set all the way to 1680 mhz , not sure if its stable , you can also set cpu govenor to different settings (mine is set at performance /1408 mhz) you can also set minimum cpu frequency, and in the Thor recovery theres a setting to change cpu mhz as well! I havent run any benchs and I dont really play games so not sure whether it matters
dmesg sheds a little light..
tegra_dvfs: rate 1504000000 too high for dvfs on cpu
cpu-tegra: Failed to set cpu frequency to 1504000000
Any ideas?
EDIT: Full wipe and fresh flash of the complete rom yields the same results.
Metallkasten said:
dmesg sheds a little light..
tegra_dvfs: rate 1504000000 too high for dvfs on cpu
cpu-tegra: Failed to set cpu frequency to 1504000000
Any ideas?
EDIT: Full wipe and fresh flash of the complete rom yields the same results.
Click to expand...
Click to collapse
No , bad cpu , did you try lower settings like 1200 or 1400 , does that stick.
I will ask ezterry for any advice .
Metallkasten said:
dmesg sheds a little light..
tegra_dvfs: rate 1504000000 too high for dvfs on cpu
cpu-tegra: Failed to set cpu frequency to 1504000000
Any ideas?
EDIT: Full wipe and fresh flash of the complete rom yields the same results.
Click to expand...
Click to collapse
mind getting a full dmesg dump since boot.. (boot, set the higher frequency, wait a second or three and dump the dmesg to file.) attach here or via pastebin
(make sure it includes boot and setting the CPU speed)
ezterry said:
mind getting a full dmesg dump since boot.. (boot, set the higher frequency, wait a second or three and dump the dmesg to file.) attach here or via pastebin
(make sure it includes boot and setting the CPU speed)
Click to expand...
Click to collapse
Here you are!
Metallkasten said:
Here you are!
Click to expand...
Click to collapse
Well the good news its not your fault.
You have slightly diffrent hardware than most of the rest of us. I'm going to need to experiment some.. I'll probably PM you in a day or two with a test kernel. (since all I'll know is I didn't crash and burn on my tablet)
most of us have this:
Code:
<6>[ 0.000000] Tegra SKU: 8 Rev: A03 CPU Process: 1 Core Process: 2 Speedo ID: 1
<6>[ 0.000000] Tegra Revision: A03 SKU: 0x8 CPU Process: 1 Core Process: 2
you seem to have this:
Code:
<6>[ 0.000000] Tegra SKU: 8 Rev: A03 CPU Process: 0 Core Process: 1 Speedo ID: 1
<6>[ 0.000000] Tegra Revision: A03 SKU: 0x8 CPU Process: 0 Core Process: 1
out of curiosity did setting max to 1.2GHz or 1.4GHz work correctly (I think I see it .. but if I do any speed under 1.5GHz ought to be working)
ezterry said:
Well the good news its not your fault.
You have slightly diffrent hardware than most of the rest of us. I'm going to need to experiment some.. I'll probably PM you in a day or two with a test kernel. (since all I'll know is I didn't crash and burn on my tablet)
most of us have this:
Code:
<6>[ 0.000000] Tegra SKU: 8 Rev: A03 CPU Process: 1 Core Process: 2 Speedo ID: 1
<6>[ 0.000000] Tegra Revision: A03 SKU: 0x8 CPU Process: 1 Core Process: 2
you seem to have this:
Code:
<6>[ 0.000000] Tegra SKU: 8 Rev: A03 CPU Process: 0 Core Process: 1 Speedo ID: 1
<6>[ 0.000000] Tegra Revision: A03 SKU: 0x8 CPU Process: 0 Core Process: 1
out of curiosity did setting max to 1.2GHz or 1.4GHz work correctly (I think I see it .. but if I do any speed under 1.5GHz ought to be working)
Click to expand...
Click to collapse
Thats odd. I could have sworn I checked, and this may only now be a result of reflashing, but 1.2GHz DOES work.
EDIT: To be clear, nothing above 1.2GHz works
If you run Geekbench you will see a noticeable difference between setting the max CPU speed. At 1GHZ i get about 900, at 1.2 its over 1000 and at 1.4 I'm getting 1207.
I am also having a problem with OC past 1200. Same setup as the OP but I can change setcpu to 1200 and everything is ok. Past that and it freezes. Have tried full wipe AND format. Any help would be great.
Bobg1231 said:
I am also having a problem with OC past 1200. Same setup as the OP but I can change setcpu to 1200 and everything is ok. Past that and it freezes. Have tried full wipe AND format. Any help would be great.
Click to expand...
Click to collapse
Did you read ezterrys answer , he's working on it, it is because of hardware difference.
Yes, did read. Thought my dmesg file was a little different and just trying to offer more info if it would help.
Only for international s3 variant Disclaimer: Im not responsible if something funny happens to your device Read the guide as much as you want before proceeding with overclocking
Overclocking and undervolting is highly debatable, some say its good and some say its bad... so its upto you to proceed further
First rule of overclocking.. Your Mileage May Vary
Most of the people here in xda do know about overclocking and stuffs but still there are many who are so eager to overclock their beast . Hence this guide.
I have given some good info below about these stuffs as far as i can , you can always use google to get further details.
What is overclocking?
Overclocking is the process of making a computer or component operate faster than the specified clock frequency by the manufacturer by modifying system parameters. One of the most important techniques is running at a higher clock rate (more clock cycles per second; hence the name "overclocking")
Operating voltages may also be changed (increased), which can increase the speed at which operation remains stable.
Advantage:
You can get more performance from your chipset, though s3 is already fast you can see the visible changes in application execution time and much more like instant response time.
Disadvantage:
* Overclocking is always risky if something is configured improperly and may also result in permanent damage of your hardware. As long as it is done safely you are good to go.
* You may see some increased power consumption.
* Extreme overclocking might kill your hardware.
Undervolting :
The process where you provide less voltage to your cpu rather than the stock voltage.
Advantage:
* Reduced heat from your device.
* Good battery life.
Disadvantage:
* Extreme undervolting will make your device unstable and some times even end up with a boot loop.
Dividing the guide into 2 parts CPU and GPU
CPU
The max clock that can be used on our s3 is 1800mhz and the minimum is 100 mhz. Below given is the stock voltage for all clocks for your reference.
1800mhz : 1450mv
1700mhz : 1400mv
1600mhz : 1350mv
1500mhz : 1325mv
1400mhz : 1275mv
1300mhz : 1238mv
1200mhz : 1175mv
1100mhz : 1125mv
1000mhz : 1088mv
900mhz : 1050mv
800mhz : 1000mv
700mhz : 975mv
600mhz : 963mv
500mhz : 938mv
400mhz : 925mv
300mhz : 900mv
200mhz : 900mv
100mhz : 900mv
Requirements:
1. Kernel with overclocking support.
2. ns tools to change frequency/voltage.(you can use the app of your choice here).
3. set cpu and stability test to test the stability of CPU.
4. Some patience.
Step 1:
Set the current clock you want to test via ns tools. (Select max frequency in cpu tab).
Step 2:
Open set cpu's cpu stress test and run it for atleast 10 minutes. If you didnt get any errors on those 10 minutes and the test completed successfully then the clock is ready for daily use
Step 3:
Now for undervolting use the same ns tools and reduce the voltage by -25mv.
Repeat step 2.
you can reduce the voltage further by -25 mv after the completion of stress test until the app become unstable. (Advanced users can try reducing -50mv )
Step 4:
Repeat step 1,2 and 3 for every possible cpu clock you see in ns tools.
Note the stable cpu voltage for every clock, once you finish testing all your clock values save it as a profile in nstools and set it on boot.
Voila !!! now you have finished overclocking/ under voting your beast The very same guide can be used to underclock you cpu.
Notes:
1. Not all chips are capable of running at higher speeds like 1800 mhz. Those speeds are highly experimental.
2. Recomended max overclocking is 1600 mhz.
3. If your device gets hotter allow the device to cool for few minutes before starting the test.
4. Combining the overclocking and undervolting will give you the best of both the worlds
In case of emergency:
1. If your device becomes unstable and not responsive either press the power button until your device restarts or pull out your battery.
2. If you end up with the boot loop due to extreme undervoltage below is the cwm flashable to reset your voltage.
http://www.mediafire.com/?e7rk8cu3gw8usqj
Though quadrant is comletely outdated and is not recommended am just adding this screenshot to show the potential of overclocking the below screenshot is tested with 1600mhz(checkrom 3.5 +siyah)
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
*********************Do note me if any information is incomplete or wrong ill change it.*******************************
Credits :
* wikipedia
* xda and its amazing developers for their work on the kernels.
* ultimate kernel cleaning script (@buster041284 ).... have edited the cwm zip to wipe init.d
GPU OVERCLOCKING
DIsclaimer :
*** I dunno if any other kernels support the very same overclocking , if it is possible kindly inform me ill update it in the post.
*** Using custom kernel or siyah kernel is purely of your choice, im not held responsible if something goes wrong
I would say GPU is by far the weakest hardware in s3, its weak in the sense that its using the very same architecture used for galaxy s2 with some additional improvements to clock it higher. Thanks to the head room given, though the maximum clock for our GPU is 440 Mhz we can over clock it to around 700 Mhz which is roughly 70% more than the stock. Yes it is possible. Thanks to our developer "gokhanmoral" who made it possible.
Advantage:
* Games can be made to run more smoother.
* Much smoother UI.
By default stock mali 400 GPU has 4 steppings , its clock frequencies are as follows
160 Mhz - 875 mv
266 Mhz - 900 mv
350 Mhz - 950 mv
440 Mhz - 1025 mv
Once you install siyah you will be having an additional GPU stepping(totally 5) along with the following available frequencies to choose from.
54 Mhz
108 Mhz
160 Mhz
266 Mhz
275 Mhz
300 Mhz
333 Mhz
350 Mhz
440 Mhz
533 Mhz - 1025 mv
600 Mhz - 1050 mv
640 Mhz - 1050 mv
666 Mhz - 1075 mv
700 Mhz - 1100 mv
800 Mhz - xxxx mv
The voltages for the above additional clocks are purely approximated values. So you can either undervolt or overvolt it as per your need.
Sample screenshot of stweaks gpu interface
REQUIREMENTS:
1. Siyah Kernel 1.5 beta 6 or higher
2. Stweaks
3. GLbenchmark 2.5(Egypt Classic and Egypt HD)
4. Basemark ES 2.0 Taiji
5. Nenamark
Testing methods and procedure:
Step 1:
Install siyah kernel and other mentioned apps and get used to stweaks.
Step 2:
Select the gpu frequency in stweaks along with the recommended voltage and apply the settings.
Step 3:
Open the above mentioned benchmark suits and run it.. if you feel any stuttering or artifacts when running the benchmark then you need some more voltage. Exit the suite and increase the voltage in stweaks by + 25 and restart the benchmark.
(** Egypt HD benchmark does stutters with currently all the mobile available in this world as the test is designed to stress the GPU to its maximum.)
Step 4:
Repeat step 2 and 3 if you need underclock/undervolt your GPU.
Notes :
* Though there are many available frequencies to choose from i would recommend not to use 54 and 800 mhz.
* Make your GPU steppings gradual (Eg : 1xx-2xx-3xx-4xx-5xx)
* If you feel your device warm let the device cool before testing.
* You can monitor your gpu frequencies in real time by using a tool called mali gpu status(caution: do not use these apps when benchmarking as it will degrade your result)
* Dont use any onscreen overlay apps like cool tool as it will degrade your benchmark scores.
Some benchmark results :
Below is the result comparison of basemark 2.0 (mobile with hd screens). Stock s3 gpu scores around 38 fps.
Here is the result achieved with max gpu clock of 700 mhz. It simply smashes all the records.
Nice work mate :thumbup::thumbup:
Interesting
Thanks, Bala - though I have tried doing this for my S before, I havent seen the need yet to do this for S3.
Having said that, if you have the right OC, UV combinatons that worked for you - do you mind sharing them. That will be the best use of this thread.
araje said:
Thanks, Bala - though I have tried doing this for my S before, I havent seen the need yet to do this for S3.
Having said that, if you have the right OC, UV combinatons that worked for you - do you mind sharing them. That will be the best use of this thread.
Click to expand...
Click to collapse
My settings is always there in my sig mate
《tapatalked from galaxy s3》
bala_gamer said:
My settings is always there in my sig mate
《tapatalked from galaxy s3》
Click to expand...
Click to collapse
This kind of thread was really needed for beginners.
Thanks for good work
Hmmm if 100,200,300mhz have same voltage so better to keep 300mhz as minimum? Talking about battery consumption/performance?
EdgaBimbam said:
Hmmm if 100,200,300mhz have same voltage so better to keep 300mhz as minimum? Talking about battery consumption/performance?
Click to expand...
Click to collapse
300mhz and 400mhz are not utilized by many kernels so its more or less useless. either 200 or 100 can be used for minimum
bala_gamer said:
My settings is always there in my sig mate
《tapatalked from galaxy s3》
Click to expand...
Click to collapse
Good work mate...now i will try to do it again..up until now i haven't seen any noticeable improvements..
thanks.
Good info...well done mate
Sent from my GT-I9300 using xda app-developers app
We are waiting forse gpu guide
Unfortunately my cpu is unstable with high undervolt, i set it to -50 and works great w/o overclock i think it's useless
Omega 11.1 and siyah kernel 1.5beta6
Sent from my GT-I9300 using xda app-developers app
RazielSasy said:
We are waiting forse gpu guide
Unfortunately my cpu is unstable with high undervolt, i set it to -50 and works great w/o overclock i think it's useless
Omega 11.1 and siyah kernel 1.5beta6
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
Give the cpu voltage settings in my sig a try, to be in the safer side always start with +25mv from my signature
《tapatalked from galaxy s3》
Glad to see someone done a guide like this fro the S3 as well.
Good luck with the thread mate.
Sent from my HTC One X
whenever I opens an app cpu reaches its Max frequency stage then come down,
is cpu acts like this normal??
kachrukamble said:
whenever I opens an app cpu reaches its Max frequency stage then come down,
is cpu acts like this normal??
Click to expand...
Click to collapse
It depends on the type of app and the initial load required, it's normal afaik
《tapatalked from galaxy s3》
kachrukamble said:
whenever I opens an app cpu reaches its Max frequency stage then come down,
is cpu acts like this normal??
Click to expand...
Click to collapse
It depends on the app its not an strange act, if the app requires a lot of cpu usage it will stay longer on the max frequency, if you dont like that you can always try an lazy cpu scaling governor (controls the behaviour of the cpu)
Edit: lol bala gamer was earlier np xd
Sent from my GT-I9300 using xda app-developers app
bala_gamer said:
It depends on the type of app and the initial load required, it's normal afaik
《tapatalked from galaxy s3》
Click to expand...
Click to collapse
Ohk. In my case it reaches for every app.
What about threshhold setting???
Sent from my GT-I9300
GPU overclocking guide added.
I try CPU : 1500mhz -50mV
GPU : 266 - 350 - 440 - 533 - 600 with mv 875 - 925 - 975 - 1025 - 1075
Nenamark2 : 54,2
Basemark Taiji : 40,48
It's a little low... ?
Geo1997 said:
I try CPU : 1500mhz -50mV
GPU : 266 - 350 - 440 - 533 - 600 with mv 875 - 925 - 975 - 1025 - 1075
Nenamark2 : 54,2
Basemark Taiji : 40,48
It's a little low... ?
Click to expand...
Click to collapse
Is 600 kicking in? I've never tried this benchmark but maybe you could try lowering your threshold frequencies.
Hi guys I'm new on xda and I'm really sorry if I post this thread in the wrong place.
I found a method last year with I think we can overclock/underclock our MTK devices.No custom kernel or ROM is required but the problem is that the CPU can't be overclocked.Only the GPU and other components like RAM and internal memory.
All you need to do is to install a MTK Engineering app from Google play store.
After that go to /hardware testing/DE-sense/PLLs - you will get to a menu with some different PLLs
ARM PLL - is CPU ( but can't be overclocked )
MM PLL - is the GPU ( it's safe to OC )
I don't know about other PLLs , I don't think is safe to OC them and you will not get any boost in performance.
There are the default PLLs values for my MT6582 device ( all clock speeds are in khz )
ARM PLL=1092000
MM PLL=500500 max / 266000 min
MSDC PLL=416000
MAIN PLL=1092000
VENC PLL=295750
UNIVI PLL=1248000
The best OC values for GPU are 315 MHz minimum frequency and 518 MHz maximum frequency,the minimum possible underclock frequency is 245 MHz minimum and 450 MHz maximum
From my tests I got a 10-15 fps boost in PSP emulators and 5-10 fps boost in 3D games (real racing 3,asphalt 8,modern combat 4) and benchmarks (antutu 5,gfx bench)
Here are the default clock frequencys for MT6589
ARM PLL=1508000 max / 754000 min
MAIN PLL=884000 max / 500000 min
MM PLL=338000 max / 286000 min
UNIV PLL=624000
MSDC PLL=208000
Here is the YouTube link,check it if you haven't understand this tutorial : https://m.youtube.com/watch?v=wY_i3u_Wu4w
Anyway I need an expert opinion to tell me what the other components are.
Attention !
- overclock can harm your hardware
- please make sure that you can remove your phone's battery because if you put a wrong value your screen can get stuck ! But if you are lucky your device will reboot
- make sure your device is rooted and you know your default clock speeds
- Do not try to OC any other components,only GPU is safe to OC
- I'm not responsible for any damage to your phone
I can't post this thread elsewhere because I'm not allowed even if I have more than 10 posts,admins please if you find this useful move it to a good location
very interesting. i want to try this on my unite3 lollipop with SoC 6582. but before that i want to ascertain default values for MMPL which i could not find when opened in engineeing mode. will you pls reply how to find default values.
shankar_vl said:
very interesting. i want to try this on my unite3 lollipop with SoC 6582. but before that i want to ascertain default values for MMPL which i could not find when opened in engineeing mode. will you pls reply how to find default values.
Click to expand...
Click to collapse
Edit: whether values stick even aftet reboot and how to check it has overclocked or else.
Sorry for so late response but I don't have a mediatek phone anymore. Anyway so no you can't see what are the defualt values in mmpl but you have to find out your gpu clock speeds ( the maximum freq like 600 mhz and the minimum one,which the gpu idles at like 120 or 200 mhz). If you say that you have a mt6582 phone your maximum freq should be 500 MHz and you could try a 533 MHz overclock. Only big problem at this gpu trick is that we can't change the voltage also,so an stable oc will be very small. I reccomend to oc that idle freq which I don't know why this mali 400 uses it even in games making them lag. So try to oc that 200 MHz to 300 MHz,but don't go higher because the kernel will think that you want to change the max 500 MHz freq so the performance will get worse. First set something like 303000 and after 515000.These are some ideal valuse which I've tested by myself. Sorry for my bad english and greetings from Romania.
how about mt6750?
Wont work on my nokia 3 TA-1032
Sorry, this is a late reply but i dont know why it says "Fail to enter De-Sense PLLs module" when i tap PLLs.
There is no de sense pill option in mtkengineering mode on my device mt6761 android 8.1
I found a thread here xda about how to overclock the cpu Galaxy Tab 4 7.0 (sm-t23nu). In that thread the creator of that custom kernel had a problem increasing the frequency of the cpu when it came to 1.4 Ghz (version 2.2 kernel) because it appear more laggy. He then later made other version of that custom kernel that was down clocked to 1.3 ghz. So I actually tried the older version it was fast but what I noticed was that cpu was going really fast(everything open up quicker apps processes were getting done more quickly) but the gpu it self was bottleneck the cpu. I noticed that because when game with it that and everything was going smooth and fast but the rendering of the image was struggling to catch up. So I install aida64 on my tablet to see how much Mhz the gpu going at 416 Mhz stock speed but what I really found interesting was that it's not even going at it's maximum stock speed which 533 mhz so it can literally overclock to 533 Mhz and still have headroom for a 5-10% overclock which could be about 650 Mhz. So I was wondering if there's any way to overclock the gpu for this particular tablet. Thank you in advance
Hey
I too create custom kernels for this specific tab and let me tell ya it's a big pain...u can overclock the gpu but it requires changing alot. You have to change the plls the gpu runs on and on top of that it breaks the frequencies the cpu runs on and also the gpu info doesn't show up at all so if u plan on building pull the repository for the tab 3 which uses the same chipset. Then go to the files that are related to to the gpu which all I did was delte the gpu folder and replace it with the tab 3's galore file which will allow u to see the gpu info in kernel aduitor etc etc. Also one more thing I have a kernel with it overclock to what I believe is 1.6ghz.. and the gpu is capale at overclock ed frequency of 832 mhz
Good luck!!!
beany23 said:
I too create custom kernels for this specific tab and let me tell ya it's a big pain...u can overclock the gpu but it requires changing alot. You have to change the plls the gpu runs on and on top of that it breaks the frequencies the cpu runs on and also the gpu info doesn't show up at all so if u plan on building pull the repository for the tab 3 which uses the same chipset. Then go to the files that are related to to the gpu which all I did was delte the gpu folder and replace it with the tab 3's galore file which will allow u to see the gpu info in kernel aduitor etc etc. Also one more thing I have a kernel with it overclock to what I believe is 1.6ghz.. and the gpu is capale at overclock ed frequency of 832 mhz
Good luck!!!
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Click to collapse
But that's problem I don't know how plls (what are even plls?) of the gpu? Plus I tried searching out on xda and other sites on how to edit kernel on overclocking frequency on both cpu and gpu but there's barely information how to do so and the only thing I know is that every kernel has different ways of changing frequency within different kernels so it's not the same for usually most of the time. XDA only shows how to add scheduler and cpu frequency also it's very general idea but in the gpu side there's no information about it. Can you give me advice what program I should for editing kernels clock frequency of cpu and gpu? Also where can I learn to edit the kernel for the galaxy tab 4 7.0?
Tech Master Race said:
But that's problem I don't know how plls (what are even plls?) of the gpu? Plus I tried searching out on xda and other sites on how to edit kernel on overclocking frequency on both cpu and gpu but there's barely information how to do so and the only thing I know is that every kernel has different ways of changing frequency within different kernels so it's not the same for usually most of the time. XDA only shows how to add scheduler and cpu frequency also it's very general idea but in the gpu side there's no information about it. Can you give me advice what program I should for editing kernels clock frequency of cpu and gpu? Also where can I learn to edit the kernel for the galaxy tab 4 7.0?
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I use vim.....also the clock fIles are located in. Drivers/clock/mmp/pxa988.c
AND the gpu files is located under. Drivers/marvell/graphics
beany23 said:
I use vim.....also the clock fIles are located in. Drivers/clock/mmp/pxa988.c
AND the gpu files is located under. Drivers/marvell/graphics
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But what file is the text file do I have to edit within those folder?
Tech Master Race said:
But what file is the text file do I have to edit within those folder?
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There's a few.... graphics/galore 4x/hal.... shows most of the files I believe
my tab 4 7.0 is 1183 mhz, and yours is half of it? whaaat??
??? 1183 MHz ??!! How did you manage that ?? Mine is at max 533 MHz .... , checking the forum like crazy how to increase the GPU MHz range . Like OP mentioned , CPU already @ 1.4 GHz instead of the default 1.2 GHz quad core speed . But seems that the GPU can't catch up : result rendering images on high end games are slow ( hangs , laggy ) .
beany23 said:
I use vim.....also the clock fIles are located in. Drivers/clock/mmp/pxa988.c
AND the gpu files is located under. Drivers/marvell/graphics
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Thanks beany32.
Tha_Bull said:
??? 1183 MHz ??!! How did you manage that ?? Mine is at max 533 MHz .... , checking the forum like crazy how to increase the GPU MHz range . Like OP mentioned , CPU already @ 1.4 GHz instead of the default 1.2 GHz quad core speed . But seems that the GPU can't catch up : result rendering images on high end games are slow ( hangs , laggy ) .
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Yeah because the cpu is doing everything fast while gpu is like snail due to the low frequency and graphical api (OpenGL 2.0) it has which can not be fixed for api but tweaking the gpu to higher frequency could help alot in cpu overclocking. It would be better if it had OpenGL ES 3.0.
thelous said:
my tab 4 7.0 is 1183 mhz, and yours is half of it? whaaat??
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I can't really tell if you are joking or not because you're a senior member and should know this but what i'm talking is GPU-Graphic Proccesing Unit and you are talking about is CPU- Central Proccesing Unit. That's stock frequency of the cpu for that tablet mines also used to be 1183 Mhz in cpu frequency and now I overclock 1.344 Ghz. The problem is when I try to go to 1.4 Ghz the cpu is very fast at proccesing information I can literally have 10 or more tabs in google and multi task and it super fast compare to stock speeds but when I see video or game on it lags because there's a bottleneck with the gpu.
beany23 said:
I use vim.....also the clock fIles are located in. Drivers/clock/mmp/pxa988.c
AND the gpu files is located under. Drivers/marvell/graphics
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Dude, I'm almost finished with it but I need to know where's the file dvfs-pxa988.c on the Galaxy Tab 4 7.0 kernel like when I go to arch/arm/ mach-mmp there's no file called dvfs-pxa988.c. under that directory. Like do you know where could be?
Tech Master Race said:
Dude, I'm almost finished with it but I need to know where's the file dvfs-pxa988.c on the Galaxy Tab 4 7.0 kernel like when I go to arch/arm/ mach-mmp there's no file called dvfs-pxa988.c. under that directory. Like do you know where could be?
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there is no file by that name... our tab uses this file for its voltages...android_kernel_samsung_degaswifi/drivers/clk/mmp/dvfs-pxa1L88.c