Database Users

galaxy S2 overclocked at 1.8ghz

will international users get this?
http://www.extragsm.com/news/t-mobile-samsung-galaxy-s-ii-overclocked-at-a-massive-1-8ghz-i473.html

Thanks for creating this, I was thinking the same after reading GSMArena's blog. I guess they have a better HW than the international ones, so 1.8 GHz could be a little extra push for ours, still it's achievable as it's already pushed up to 1.6 GHz?
What say???

For the T-Mobile version.
Sent from my GT-I9100 using xda premium

TheFaixy said:
will international users get this?
http://www.extragsm.com/news/t-mobile-samsung-galaxy-s-ii-overclocked-at-a-massive-1-8ghz-i473.html
Click to expand...
Click to collapse
Keep in mind that clock-for-clock, the Snapdragon in the T989 is MUCH slower than the Exynos.
General consensus seems to be that a 1.5 GHz Snappy is approximately the same as a 1.2 GHz Exynos performance-wise.
That's a 20% overclock from stock for them, while anything Exynos-based has had 33% overclock for ages. So we have a higher percentage overclock on a processor that provides about the same performance despite the lower clock rate.

^this.
Clock says nothing about a CPU's speed, it's only good for comparisation between the same CPU type.

Freakgs said:
^this.
Clock says nothing about a CPU's speed, it's only good for comparisation between the same CPU type.
Click to expand...
Click to collapse
Just look at Bulldozer

russ18uk said:
Just look at Bulldozer
Click to expand...
Click to collapse
Better example - remember the Pentium 4?

Entropy512 said:
Better example - remember the Pentium 4?
Click to expand...
Click to collapse
oh hell yeah. Williamettes were diabolical. However look at bulldozer it's horrid so much AMD is sacking 10%.
Sent from my GT-I9100 using XDA App

Don't bring up bulldozer in here; it's just going to make me cry. :'(

Entropy512 said:
General consensus seems to be that a 1.5 GHz Snappy is approximately the same as a 1.2 GHz Exynos performance-wise.
Click to expand...
Click to collapse
1.5Ghz snapdragon is slower than our 1.2Ghz Exynos
Sent from my GT-I9100 using Tapatalk

overclock me
i really wanna do this so much, but i dont really wanna risjk losing my phone that i just got, do they say it might brick your phone to scarte you or can it really brick your phone, has anyone tried this with any success, and does it make much difference?

What's a battery life ?
Peter
hugeone.co.uk

[Q] low clock speed's

any reason for the 1.15ghz CPU speed and 400(ish)MHz gpu speed other than cost? or do you think they underclocked to save the battery? hoping we can over clock to t30l speeds

foxorroxors said:
any reason for the 1.15ghz CPU speed and 400(ish)MHz gpu speed other than cost? or do you think they underclocked to save the battery? hoping we can over clock to t30l speeds
Click to expand...
Click to collapse
Deffently clocked to increase battery and reduce heat
Sent from my GT-N7000 using xda premium

No need to worry. developers will get this tablet to at least 1.5ghz or more. overclck tweaks for transformer prime should work on this also. all it'll need is root

Do we really need to overclock this? I mean I probably will anyways but a 1.3 Quad is pretty zippy by itself!

As the tegra 3's gpu compared to say the galaxy s3 (international) is fairly weak, I only hope we can OC the GPU by enough to make a difference. I am not that bothered to about OCing the cpu but I do care about the GPU

miketoasty said:
Do we really need to overclock this? I mean I probably will anyways but a 1.3 Quad is pretty zippy by itself!
Click to expand...
Click to collapse
True, even at 1.0 ghz it'll do fine with most games..
I underclock my S2 to 1.0 ghz and i experienced no hiccups whatsoever.. and I'm still on dual core
Sent from my GT-I9100 using Tapatalk 2

Questions go in the Q&A section

foxorroxors said:
any reason for the 1.15ghz CPU speed and 400(ish)MHz gpu speed other than cost? or do you think they underclocked to save the battery? hoping we can over clock to t30l speeds
Click to expand...
Click to collapse
The Tegra 3 used in the Nexus 7 is a version of the Tegra 3 chip that didn't work within guidelines at the regular speeds, but were within guidelines for a lower speed. This is done regularly in Intel/AMD CPUs as well. That's why there are different speed CPUs in the same model family. This way they can sell the high speed CPUs at a higher cost and still make money off the CPUs that can't run as fast. Eventually the process to make the chips will be so efficient that they will artificially lower the speeds to sell as the cheaper version and that's when you can overclock like crazy and not have instability (if the CPU product cycle lasts that long).
http://en.wikipedia.org/wiki/Product_binning

Outrager said:
The Tegra 3 used in the Nexus 7 is a version of the Tegra 3 chip that didn't work within guidelines at the regular speeds, but were within guidelines for a lower speed. This is done regularly in Intel/AMD CPUs as well. That's why there are different speed CPUs in the same model family. This way they can sell the high speed CPUs at a higher cost and still make money off the CPUs that can't run as fast. Eventually the process to make the chips will be so efficient that they will artificially lower the speeds to sell as the cheaper version and that's when you can overclock like crazy and not have instability (if the CPU product cycle lasts that long).
http://en.wikipedia.org/wiki/Product_binning
Click to expand...
Click to collapse
This suggests Nexus 7 probably won't OC so well. Which wouldn't surprise or disappoint me. It appears Asus dropped a lot of little features to keep cost down(which I think is a good move), and using CPU s that didn't bin well is one good way to keep cost low.
i777 w/ Siyah 3.4.3 dual booting AOKP and Shostock... yet sent from my iPad using Forum Runner

(q)can you disable quad core?

Is or possible to disable quad core on this phone? I can see that s3 handles everything done with dial core

comc49 said:
Is or possible to disable quad core on this phone? I can see that s3 handles everything done with dial core
Click to expand...
Click to collapse
Even HTC G1 can get things done, with a half a core free to eat pop corn.
To your question, if you are patient enough then there should be safe and easy way very soon.

Yes, it is possible.
Root the phone and then echo 0 > /sys/devices/system/cpu/cpu#/online, where # is the number of the core you want to take offline.
As for governers that automatically hotplug cores on and off, we will have those soon enough.

comc49 said:
Is or possible to disable quad core on this phone? I can see that s3 handles everything done with dial core
Click to expand...
Click to collapse
But why? I'm curious to why.... One would think that ox you're going to do that... Just get a non quad core phone.
Sent from my Nexus 4 using xda premium

Locksmith81 said:
But why? I'm curious to why.... One would think that ox you're going to do that... Just get a non quad core phone.
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
But then you don't get that fancy Adreno 320 GPU with a standard dual-core phone

jacklebott said:
But then you don't get that fancy Adreno 320 GPU with a standard dual-core phone
Click to expand...
Click to collapse
And you'll always have the option to enable all 4 cores.
Sent from my Nexus 4 using xda premium

+ battery life

Isn't 4 cores better for battery life because the amount of work is spread between them, eg. if the system is running on 4 cores @ say 1Ghz, but if you're using two cores, then it might be higher CPU usage on the two cores.

parker09 said:
Isn't 4 cores better for battery life because the amount of work is spread between them, eg. if the system is running on 4 cores @ say 1Ghz, but if you're using two cores, then it might be higher CPU usage on the two cores.
Click to expand...
Click to collapse
you can just use Setcpu to underclock your phone. no need to shutdown any cores. you just need to be rooted and install Setcpu. i did this and i noticed how much battery life i had afterwards. besides, there is no lag by underclocking it down.

As to my knowledge, turning off cores does not save any more battery. I believe the whole CPU is powered as a whole. Now like the guy said above, 4 cores running at 486MHz is a lot more battery efficient than scaling the processor to 702MHz for one core.
Reason being the cpu has to turn up the clock speed, which increases the voltage used by the CPU.
Also, if you're looking to save battery, undervolting is far better than disabling cores.

qwahchees said:
As to my knowledge, turning off cores does not save any more battery. I believe the whole CPU is powered as a whole. Now like the guy said above, 4 cores running at 486MHz is a lot more battery efficient than scaling the processor to 702MHz for one core.
Reason being the cpu has to turn up the clock speed, which increases the voltage used by the CPU.
Also, if you're looking to save battery, undervolting is far better than disabling cores.
Click to expand...
Click to collapse
On another thread it seems that you can under volt by a large margin with I'll effects.
Not got n4 yet but if its anything like the n7 you should be able to under clock quite a bit before it becomes noticeable.
Sent from my Nexus 7 using Tapatalk 2

Faux 005 kernel using Intellidemand governor disables the 3 cores when not needed, and then turns them back on when needed (hotplug)

qwahchees said:
As to my knowledge, turning off cores does not save any more battery. I believe the whole CPU is powered as a whole. Now like the guy said above, 4 cores running at 486MHz is a lot more battery efficient than scaling the processor to 702MHz for one core.
Reason being the cpu has to turn up the clock speed, which increases the voltage used by the CPU.
Also, if you're looking to save battery, undervolting is far better than disabling cores.
Click to expand...
Click to collapse
I think this is correct, I'm learning about computer architecture now in class and from what I understood it's like this. If I were to build a house by myself it would not only take longer to finish but I would also be more tired when I did as opposed to sharing all the tasks with 3 other people. Also note that everyone(4 people) would have more energy left over for other tasks when the house is finished. I haven't finished this chapter yet so don't quote me lol.

Nexus4 cores come back online, even when disabled!
Ranguvar said:
Yes, it is possible.
Root the phone and then echo 0 > /sys/devices/system/cpu/cpu#/online, where # is the number of the core you want to take offline.
As for governers that automatically hotplug cores on and off, we will have those soon enough.
Click to expand...
Click to collapse
So, I tried disabling Nexus4 cores using this above method after rooting, but the cores come back online as soon as I start running any app. Is there any other workaround that needs to be done for this device. I was able to use this method successfully on my older devices though.
Has anyone had success with N4?

Four cores are never on at the same time with regular use... Two are
Sent from my Nexus 4 using xda app-developers app

comc49 said:
Is or possible to disable quad core on this phone? I can see that s3 handles everything done with dial core
Click to expand...
Click to collapse
Wow. That's like disabling one of your testicles!!!
Sent from my Nexus 4 using xda app-developers app

I have only dual core mode, check my signature. Franco Kernel
Sent from my Nexus 4 using xda premium

Snapdragon 600 vs Snapdragon S4 Pro

Well our snapdragon s4 is now considered "old" which is a bummer! Had to happen at some point tho I suppose. So how does this new chip compare? Does anyone know what's been improved?
Sent from my Nexus 4 using xda app-developers app

fredcorp6 said:
Well our snapdragon s4 is now considered "old" which is a bummer! Had to happen at some point tho I suppose. So how does this new chip compare? Does anyone know what's been improved?
Click to expand...
Click to collapse
The S4 Pro and the Snapdragon 600 are basically the same chip. The model number is almost identical (APQ8064 vs APQ8064T; the Plus, Prime, and 800 all have very different model numbers), same fab process at 28 nm, same L0, L1, and L2 caches, same GPU. The difference is higher clock speed (max 1.7 vs max 1.9 GHz), and potentially a faster/bigger memory channel.
By no means does the S4 Pro instantly become antiquated. Between it and the 600, they're more similar than they are different. The 800 is a different story...

everythingsablur said:
The S4 Pro and the Snapdragon 600 are basically the same chip. The model number is almost identical (APQ8064 vs APQ8064T; the Plus, Prime, and 800 all have very different model numbers), same fab process at 28 nm, same L0, L1, and L2 caches, same GPU. The difference is higher clock speed (max 1.7 vs max 1.9 GHz), and potentially a faster/bigger memory channel.
By no means does the S4 Pro instantly become antiquated. Between it and the 600, they're more similar than they are different. The 800 is a different story...
Click to expand...
Click to collapse
I didn't think there was a big difference either between the 2, however the HTC one with the S600 is getting like 12000 on quadrant compared to the 5000 we get?
How do u explain that? I guess it could just be that quadrant isn't really optimised for our phones and is not giving accurate results.
Sent from my Nexus 4 using xda app-developers app

fredcorp6 said:
Well our snapdragon s4 is now considered "old" which is a bummer! Had to happen at some point tho I suppose. So how does this new chip compare? Does anyone know what's been improved?
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
From anandtech:
[snapdragon 600] "This is quad core Krait 300 (as opposed to 200 in MSM8960 or APQ8064) which brings a 15 percent increase in IPC as well as higher clocks (from 1.5 to 1.7 GHz), for about 20–30 percent higher overall CPU performance"
20 - 30% So significant but not huge.

fredcorp6 said:
I didn't think there was a big difference either between the 2, however the HTC one with the S600 is getting like 12000 on quadrant compared to the 5000 we get?
How do u explain that? I guess it could just be that quadrant isn't really optimised for our phones and is not giving accurate results.
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
I read on snapdragon s4 pro and compare it with spec of snapdragon 600 "the only" difference i got is memory technology, s4pro uses 533MHz LPDDR2 and 600 uses LPDDR3
Edit: our phone not made for benchmark, i read somewhere on google+ someone wrote about it.
Btw nexus is always behind in terms of benchmarking, but if you compare the smoothness even galaxy nexus is still so smooth.
Here is the link https://plus.google.com/u/0/101093310520661581786/posts/Q1yVmqtubG9 its exynos4 saga by one of exynos cm maintainer, but he give a reason why our benchmark not as good as optimus G.
Sent from my Nexus 4 using Tapatalk 2

Why do people care so much about benchmark scores? Does it really matter? The only test that should matter is your eyeball.
Sent from my Nexus 4 using xda premium

Exodian said:
Why do people care so much about benchmark scores? Does it really matter? The only test that should matter is your eyeball.
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
+1 Please

Exodian said:
Why do people care so much about benchmark scores? Does it really matter? The only test that should matter is your eyeball.
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
Well because sometimes its a good way of comparing the performance of 2 phones - unfortunately not the case with a nexus I've just learned. Eyeball is very subjective, benchmarks are not (well they shouldn't be!).
Sent from my Nexus 4 using xda app-developers app

lol @ benchmarks please welcome to technology soon as you bought the phone it was considered OLD !

But it is great to have both real smooth and high score benchmark
Sent from my Nexus 4 using xda premium

S4 Pro is still quick and i can see it being developed in devices for another 2+ years. i would safely assume low end tablets would also start using it when the price of these chips are reduced

Never cared about benchmarks, Even with the PCs I build. I over clock my pcs as much as possible for REAL WORLD usage and as long as they allow me to do everything I want and more and visually everything looks and feels fine and is stable, I'm good to go. Same applies with these phones. The nexus has top of the line internals and stock android allows this phone to be the way it was meant to. Now I have flashed asylum which is awesome, and I have used just about every kernel. I do notice differences in kernels “cough, matrix is the best, cough", but the differences are “seat of the pants" which is a curse in my opinion. Benchmarking stresses components, and at the price of these things why take a chance of shortening its life.
Sent from my Nexus 4

tuilalnvinh said:
But it is great to have both real smooth and high score benchmark
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
benchmarks = just numbers if your phone feels right looks right this is all you need

CheesyNutz said:
benchmarks = just numbers if your phone feels right looks right this is all you need
Click to expand...
Click to collapse
That is my point right there.
Sent from my Nexus 4 using xda premium

CheesyNutz said:
benchmarks = just numbers if your phone feels right looks right this is all you need
Click to expand...
Click to collapse
My G2x used to get pretty high benchmarks... I hated that phone.
Sent from my Nexus 4 using Tapatalk 2

Benchmarks do tell a part of the story. You can't say that a phone that scores barely 1000 on benchmarks is as fast as a phone that scores 5000. The numbers might fluctuate a little but you get the idea. Nexus4 scores pretty good on optimised benchmarks like antutu but doesn't score good on benchmark apps that haven't been updated for two years like quadrant.
Sent from my HTC One S using Tapatalk 2

ksubedi said:
Benchmarks do tell a part of the story. You can't say that a phone that scores barely 1000 on benchmarks is as fast as a phone that scores 5000. The numbers might fluctuate a little but you get the idea. Nexus4 scores pretty good on optimised benchmarks like antutu but doesn't score good on benchmark apps that haven't been updated for two years like quadrant.
Sent from my HTC One S using Tapatalk 2
Click to expand...
Click to collapse
Yeah its my understanding that quadrant is also really easy to spoof
Sent from my Nexus 4 using xda premium

AW: Snapdragon 600 vs Snapdragon S4 Pro
So far I can see only devices with Android 4.1, or less, score pretty high with Krait cores. We havn't any other phone with 4.2 and snapdragon CPU to compare fairly.

The dual core S3 in my Xperia S doesn't feel any difference to the quad core S4 Pro in my Nexus 4 in every day use so i aint going to lose any sleep.

The number I heard thrown around was 40% faster on paper, or theoretically. Real world applications that may translate to less but still somewhat significant depending on your use case.
The kicker is it seems to still be the Adreno 320, is that higher clocked than the S4 Pro? If not it's pushing more pixels in the HTC One.

[Q]Running 8 cores at the same time

Does anyone think as I do?
Can you guys come up with a tweak to run all the 8 at the same time?
I think this could be possible whith breaking arm's big.little structure. But it will suck the battery
Just think of the benchmarks...
Sent from my gti9500-developer edition using xda premium

That is quit an undertaking.

On 8 Cores:
Benchmarks: "It's over 9000!"
Battery life: "1 hr screen on time, battery lasts full 8 hrs!"

Benchmarks are not everything.
Sent from my GT-I9505 using xda app-developers app

Yahi said:
On 8 Cores:
Benchmarks: "It's over 9000!"
Battery life: "1 hr screen on time, battery lasts full 8 hrs!"
Click to expand...
Click to collapse
Could be a toggle...
Sent from my GT-N7000 using xda premium

Pezmet said:
Benchmarks are not everything.
Sent from my GT-I9505 using xda app-developers app
Click to expand...
Click to collapse
What is everything then?
S4 has everything.software,function,apps and ...
If this is possible then no phone could be more amazing
Sent from my GT-N7000 using xda premium

Here you go.
This is just a quote from AndreiLux thread. ( I'm just copy/pasting)
Heterogeneous Multi-Processing (HMP)
This is the other actual implemented function mode of a big.LITTLE CPU. In this case, all 8 cores can be used simultaneously by the system.
This is a vastly more complex working mechanism, and its implementation is also an order of magnitude more sophisticated. It requires the kernel scheduler to actually be aware of the differentiation of between the A7 and A15 cores. Currently, the Linux kernel is not capable of doing this and treats all CPUs as equals. This is a problem since we do not want to use the A15 cores when a task can simply me processed on an A7 core with a much lower power cost.
The Linaro working-group already finished the first implementation of the HMP design as a series of patches to be applied against the Linux 3.8 kernel. What they did is to make the scheduler smart enough to be able to track the load of single process entities, and with that information to schedule the threads smartly on either the A7 cores or the A15 cores. This achieves much lower latency in terms of switching workloads, or better said, switching the environments (CPUs) to the respective work-loads, and exposes the full processing capabilities of the silicon as all cores can be used at once.
You can follow the advancements of this in the publications of the Linaro Connect summits that happen every few months. The code was only published in the middle of February this year for the first working implementation equivalent in power consumption to the IKS.
•Misconception #6: Yes the CPU is a true 8-core processor. It's just not being used a such in its initial software implementations
Click to expand...
Click to collapse
Read more about 8 cores at AndreiLux thread -> http://forum.xda-developers.com/showthread.php?t=2191850

sepehrthegreat-iran said:
What is everything then?
S4 has everything.software,function,apps and ...
If this is possible then no phone could be more amazing
Sent from my GT-N7000 using xda premium
Click to expand...
Click to collapse
Honestly why is everyone so like "oooh my phone has this score on Antutu - I think I might have a crisis". Benchmarks DO NOT offer any sort of real world performance, they give a score based on how your phone would run if maxed out at 100% capacity 100% of the time.
This is not a good indicator of performance - nobody ever uses their phone like this, ever. Period.
My advice, drop the subject, there is no point in making all 8 cores run under heavy load at the same time unless you are playing a very resource intensive game.
Thread closed.