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Hey all,
My phone is rooted. I'm wondering how Overclocking might effect battery life. Better? Worse?
Also, what is a solid speed to OC on the Captivate?
It will be worse, but if you do UV it will last a bit longer...
Battery life will go down, but its by such a small amount, you wont even notice it(depending on how much you OC it)
and stable OC values will be different for every phone since all processors are not made equal. For example, my max stable overclock is at 1.2ghz, but my friend was stable at 1.4 with undervolting by 100.
You really just need to play around with it and find what works for you.
If you really want a solid stable number, im pretty sure every captivate I've seen can go up to atleast 1.2 ghz.
Sent from my Captivate using XDA App
Yuna said:
It will be worse, but if you do UV it will last a bit longer...
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Click to collapse
That is very untrue. I read an article (for the life of me can't find it) that overclocking is actually better for battery life. I have in fact had better results on my LG Optimus V with overclocking at 806mHz (highest stable clock setting) than with 600mHz (standard). LeslieAnn (Harmonia dev) linked to the aforementioned article in one of her posts. If I find the link I will post it.
I've only OC a couple of times but 1200Mhz should be stable for the majority of phones out there. The most I've got out of my phone was 1440Mhz on MIUI with Glitch kernel, while my friend was able to hit 1600Mhz with same rom and kernel. It took me quite a bit to figure out what voltages for what steps etc to get it to work well so if you do not feel like tinkering with it for a long while I wouldn't try to push your OC too high.
Battery life doesn't usually decrease unless you over volt. That being said most Galaxy S will get 1.2ghz-1.3ghz on stock voltage. Usually a good idea to undervolt most "steps" except the high clocks (1ghz+) but this varies on phone, rom, kernel, etc.
prbassplayer said:
Battery life doesn't usually decrease unless you over volt. That being said most Galaxy S will get 1.2ghz-1.3ghz on stock voltage. Usually a good idea to undervolt most "steps" except the high clocks (1ghz+) but this varies on phone, rom, kernel, etc.
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ohh... i thought that said undervolt... but over clocking as well will make it decrease some.
If you ran faster you would burn more energy in the same amount of time. (over clocking)
If you reduced the weight of your legs or gravity you would burn less energy. (under volting).
Most people dont notice battery drain when overclocked because the processor speed doesnt run full speed all the time. it governs to different speeds for what it needs to do.
go stock speed and play a game till it drops to a percentage.
recharge
overclock with NO undervolting and play the game again till the same percentage.
less time. guaranteed.
just sitting at the homescreen and flipping through your app drawer and using face book wont kick your phone into high gear, with stock or overclocking. you will never notice.
TRusselo said:
ohh... i thought that said undervolt... but over clocking as well will make it decrease some.
If you ran faster you would burn more energy in the same amount of time. (over clocking)
If you reduced the weight of your legs or gravity you would burn less energy. (under volting).
Most people dont notice battery drain when overclocked because the processor speed doesnt run full speed all the time. it governs to different speeds for what it needs to do.
go stock speed and play a game till it drops to a percentage.
recharge
overclock with NO undervolting and play the game again till the same percentage.
less time. guaranteed.
just sitting at the homescreen and flipping through your app drawer and using face book wont kick your phone into high gear, with stock or overclocking. you will never notice.
Click to expand...
Click to collapse
I have my phone and nook's clocking speed set at the same for min/max settings. I play a mean game of RUA and AirAttack HD. I've in fact timed my battery life on standard clock settings and my overclocking. While overclocked, my nook lasted 10 minutes longer than at standard speeds (while playing AirAttack HD, which has intense 3D graphics). And you might suggest I undervolted, but I never touch that stuff. My volting stays where it is.
A few weeks ago when I still had my HTC Hero it was overclocked to 672Mhz (standard = 528Mhz). It gave me a little boost in performance on Froyo, also the batterylife wasn't decreased too much.
But with our N1 running on 1Ghz, will it give much difference when clocked to 1113/1152Mhz? And what about batterylife?
If SetCPU is used what are your settings then? Mine is currently running on stock speed, no SetCPU.
ZeppeMan said:
A few weeks ago when I still had my HTC Hero it was overclocked to 672Mhz (standard = 528Mhz). It gave me a little boost in performance on Froyo, also the batterylife wasn't decreased too much.
But with our N1 running on 1Ghz, will it give much difference when clocked to 1113/1152Mhz? And what about batterylife?
If SetCPU is used what are your settings then? Mine is currently running on stock speed, no SetCPU.
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I have my nexus one rooted and flashed to MIUI Rom and clock @ 690mhz I get way better battery power. Before I would only get 6hr to 8hr if lucky now I get from 9hr to 13hr depending how much I use it.
set to 1.13 ghz
then screen off to minimum 245mhz
josemedina1983 said:
I have my nexus one rooted and flashed to MIUI Rom and clock @ 690mhz I get way better battery power. Before I would only get 6hr to 8hr if lucky now I get from 9hr to 13hr depending how much I use it.
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So you underclocked it, what about the speed? It's not to laggy?
Nexus one can run reasonably smooth @ 600mhz and above. It might not open applications as fast as it will be @ 1GHz though.
i think 1Ghz is enough for n1
why do u want an overclock?
Sent from my Nexus One using XDA App
shreyas1122 said:
i think 1Ghz is enough for n1
why do u want an overclock?
Sent from my Nexus One using XDA App
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I didn't said I want an overclock. It's allready very fast on 1Ghz (compared to my old Hero ), just wanted to know your thoughts about overclocking the N1.
im overclocked at 1152 mhz and profiles set for 245 max with screen off. Overclocking is nice because i like the snappiness but most people cant tell the difference between 998 mhz and 1152. its not needed to overclock but i think profiles help alot. just my two cents
Ok thx, I will try 1150Mhz and see (if it's stable and) what batterylife does. I'm also going to try underclocking.
I have my N1 only for a couple of weeks now and I must say, this phone is awesome. It's VERY fast compared to my old Hero. I remember when I was installing apps on my Hero it became very slow and couldn't do anything untill installing was finished. With the N1 you still can do things while installing apps without lag. The responsiveness and smoothness is also a lot faster. I loved my Hero Because it never let me down, ok it was all a bit slower, but it was getting there. Now with the release of Gingerbread (custom ROM) it became to slow for me and that's why I sold my Hero and bought the N1. It was very difficult to find one, because of the EOL (end of life). But eventually I found one and i'm very happy with it. The N1 is allready more 1 year old, but it still competes with the best phones out there.
I generally run overclocked at 1075MHz, which gives a good balance between battery power usage and processor power. My understanding is that a different voltage scaling method is generally used above 1075MHz, so power consumption will increase above that point.
Didn't knew the voltage would increase above 1075Mhz, will keep that in mind
ZeppeMan said:
Didn't knew the voltage would increase above 1075Mhz, will keep that in mind
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This is, of course, dependent upon how the kernel is constructed, but this is what I have generally found to be true.
Give us some feedback
I overclocked it too 1075Mhz when screen is on (screen off 245Mhz). Will give my thoughts in a day or 2.
Just report that my battery drain is almost the same as on stock settings. I think it drains a tiny bit faster on 1075Mhz, but nothing major. On the other hand, I don't feel it's faster on 1075Mhz then on stock speed. Only benchmarks give me performance increase.
I'm now on CM6.1.1 with stock kernel (cyanogen), I tried other kernels like Wilmonks kernel,.. Although it was more responsive, battery was going down even faster. I get best battery results with stock kernel.
Hard to choose
more speed = more battery drain
less speed = longer battery
I think I stay with the last option (less speed = longer battery), because Wildmonks kernel doesn't give me enough performance increase over the stock kernel on stock speed.
I have mine at 998mhz, but overclocked 1152 while plugged into power.
Either way, its so easy to play with the clock settings, i'd just have a play with a bunch of different settings if i were you.
liam.lah said:
I have mine at 998mhz, but overclocked 1152 while plugged into power.
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I'd love a how-to fire that..
mind sharing the app?
Sent from my Nexus One
ZeppeMan said:
wanted to know your thoughts about overclocking the N1.
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Click to collapse
well my thoughts: underclock!
so you can watch movies on it all night!
Sent from my Nexus One
shreyas1122 said:
I'd love a how-to fire that..
mind sharing the app?
Sent from my Nexus One
Click to expand...
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You can use SetCPU to create profiles based on different circumstances.
Me, I have mine clocked to a max of 1075 and min of 245 with the screen on, 576 max / 128 min screen off, 998/128 charging (to reduce heat - overclocking while power is applied can make it silly hot), and a failsafe to clock down to 576/128 if the temperature gets over 50*C.
Fabulous app.
Correct me if I am wrong. When you use setcpu to "ondemand", the CPU speed can ramp up to max whenever necessary, otherwise the speed will tune down to min especially in standby mode. In that way, you can enjoy the advantages of overclocking and underclocking the CPU speed i.e. increasing performance when needed and saving power when not in use, right? When I loaded Rod's MIUI and Wildmonk's kernel, I can underclock down to 128Mhz and overclock up to 1.152Ghz. At the end of the day, I still have over 60% of power left after not so heavily use (some web browsing, checking email and listen some music). Overall, setcpu is a great app for me.
What are the benefits of OC/UV (particularly for CM7)?
I know of improved performance due to OC, but what does UV do in regards to performance. Also, how does an OC/UV kernel compare to one without the option?
your processor doesn't need as much voltage as the stock settings--undervolting lets you save battery
personally i want to know.. do you have to UV to OC?
xredjokerx said:
your processor doesn't need as much voltage as the stock settings--undervolting lets you save battery
personally i want to know.. do you have to UV to OC?
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Click to collapse
You can do either or both but don't have to do both. At some point UVing will cause a crash. Right before that point it can cause performance issues. See the link below for instructions on how to find an optimal UV level to maximize battery savings and performance.
http://forum.xda-developers.com/showpost.php?p=10936691&postcount=1102
OCing improves speed but can also cause stability issues. For a captivate this usually isn't a problem until you get past 1.2 ghz. After that, it depends on the kernel but I have yet to find a kernel that is completely stable past 1.2 ghz under stressful conditions. Samsung designed the processor to handle 1.2 ghz and in theory it can go up to at least 1.6.
Like everyone before me has said, OC will make your processor work more (which will eat up more battery, and send the temps a bit higher).
UV is a way to "fix" that problem by controlling the voltage used by each Mhz/Ghz range. The mini guide that QuarkGluonSoup posted is a great way to start off.
Most Captivates start have random errors past 1.2Ghz, but the highest I've seen (stable) are 1.4Ghz.
venomio said:
Like everyone before me has said, OC will make your processor work more (which will eat up more battery, and send the temps a bit higher).
UV is a way to "fix" that problem by controlling the voltage used by each Mhz/Ghz range. The mini guide that QuarkGluonSoup posted is a great way to start off.
Most Captivates start have random errors past 1.2Ghz, but the highest I've seen (stable) are 1.4Ghz.
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Click to collapse
Odd as it sounds, my battery life on CM7 is close to 50% better when it is OC'ed to 1.2 ghz and UV'ed than it was on the froyo ROMs under the same conditions.
That really is odd :S I think I'll try it myself.
so, i am using the Fear Rom and with the OC karnel. i played around the max sittings to 1.4 and tried quadarant. amazing score of 4150. nice... but what will happen if i keep it at 1.4 ?
will it over heat the phone / burn the GPU/CPU when playing games for example ?
i understand the battery life will be shorter. but what other disdvantages ?
ll_l_x_l_ll said:
so, i am using the Fear Rom and with the OC karnel. i played around the max sittings to 1.4 and tried quadarant. amazing score of 4150. nice... but what will happen if i keep it at 1.4 ?
will it over heat the phone / burn the GPU/CPU when playing games for example ?
i understand the battery life will be shorter. but what other disdvantages ?
Click to expand...
Click to collapse
You could dmg ur cpu. But Tegra is known to run 1.8Ghz stable. So with 1.4 you should be good.
Sent from my LG-P990 using XDA App
Oh!! Great 1.8Ghz but only 1.4Ghz is very drain my battery to much.
In the long run, your cpu might get affected but its shouldn't happen so soon.
That said, in my honest opinion, don't need to OC the chip.
The same OCing rules apply from the PC World. The same batch of chips have varying maximum OCing capabilities and thus different stabilities. Although you can stably run a chip at a higher clock, it will definitely shorten its life (Sometimes it could kill it in a year, sometimes beyond what we can measure.). Chip makers purposefully OC chips during tests to simulate the stress effects of using the chip over a long period of time (OCing that makes it seem like the chip is being used for months or years.). Nvidia sticks the Tegra at 1 GHz half because it's cheaper to do so (don't need to ensure higher clock rates which would mean a larger percentage of their chips won't last doing it.) and half because of marketing (At the time, no one has 1.2 GHz like we do now. From what I've seen, Tegra 2 can do 1.2 GHz easy.).
So what it comes down to is how long you plan on keeping the phone and how lucky you are. =)
Imo, in the interest of power savings (P = (V^2)/R), the gains of OCing having an exponentially worse effect on battery life.
imho theres currently no point in oc'ing the Tegra2 in Optimus at all.
Theres no real life benefit, only theoretical benefit when running benchmark apps for show off.
Theres not a single application or game out there today that require more processing power than what the Tegra delivers at 1ghz - and not a single one out there that will run any better or faster by oc'ing because the demand for processing power to run the application or game at its maximum capacity are allready met at 1ghz
Basically there are only negatives in terms of decreased battery and cpu life for nothing but a screenshot of a higher quadrant (or whatever) score
If at some time in the future you should run into a game that would not run smoothly unless the cpu are oc'ed then it would make sence to do so - but for now not.
The games available today either do run perfectly smooth at 1ghz or if they dont, then they dont because of poor programming or other factors and they would still run poorly even if the cpu are oc'ed
Actually there are real life benefits until you find a game which really lags when you run it. Meaning, you should leave it as it is until next year.
It may damage the CPU like what others say but since lower clocks are undervolt it might last as long as a non OC (Stock).
But it will kill the battery faster as you will have to charge more often due to the higher power draws.
Hello
I recently acquired a nook color and i am going to install cynogen mod 7.1 and google apps from clock work recovery method, but i want to overclcok to 1.2 or 1.3 ghz, i understand that cynogen mod has an overclock facility built in, the part i am not sure about is to reach 1.2 ghz or 1.3 ghz do i have to use dalingrin overclock kernel to achieve these speeds, or is it possible in cynogen mod 7.1 without the kernel.
Any info would be appreciated.
Regards
Mark
Dal's kernel has been included in there for a while now. If you use 7.1 stable to later nighlies you are definitely safe.
ok, thats great, thanks for the reply, appreciated.
Regards
Mark
It appears the GPU may run best at 1200, even thou the CPU can do up to 1300.
It certainly seems to be true that going past 1200 can slow down graphic intensive operations. I am guessing that's probably because the graphics processor has to run at a ratio of the CPU and going past 1200 ends up with a lower graphics frequency.
But depending on the type of applications used there can be benefit in going higher and most Nooks seem to be capable of 1350. This can be seen in two different benchmarks. Quadrant gives significantly higher scores at 1350 than 1200 whilst the graphically more intensive Nenamark is slower at 1350 then 1200.
I ended up using 1200 anyway as it feels fast and probably also helps with battery life.
Check the voltage settings as well as these can normally be lowered a bit to help again with battery life. I use the one's originally quoted by Dal and don't have any stability issues. ( 09.25 / 1.05 / 1.2 / 1.275 / 1.325)
I did a comparison of 1200 and 1350 MHz with the Sunspider JavaScript bench. 1350 is faster but frankly I have a hard time telling the difference between even stock clock and 1350 in actual practical usage.
The most obvious speed boost I've found is running 16bit color. Big difference in browser scrolling performance.
Is overclocking it fully safe?
GuTsaV said:
Is overclocking it fully safe?
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From the standpoint that breathing in a metropolitan area is not fully safe, no it is not.
I use the stepper built-in to 7.1 stable and have never given it a second thought.
Try nook color tweaks.
Sent from my [R3] BLURR3D DROID BIONIC using XDA App.
GuTsaV said:
Is overclocking it fully safe?
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I have run at 1200 / 1350 for the last 4 months and it has been stable and I have not seen any real detectable difference in battery performance or in how warm the device gets. The governor means that a lot of the time the Nook is running at lower clock speed anyway.
I don't recollect seeing any reports of damage on this forum to the Nook through over-clocking. Increasing voltages from the stock values on the other hand is probably not a good idea. There may possibly be longer term effects from overclocking but I'd guess the effect on lifetime is small enough that most people will have changed their device before it is significant.
GuTsaV said:
Is overclocking it fully safe?
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Click to collapse
Being that Nooks CPU is underclocked by default. It is very safe.
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