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Hi guys
I downloaded the quadrant standard application on my Captivate. Looking into the system info i observed the following
1. CPU : samsung cortex v7. I thght the processor was a v8? I dunno whether the processor info is right.
2. The processor speed is displayes as "800 MHz"
Max freq ; 1000 MHz
MIN freq : 800 MHz
Whatz going on here?
Can someone explain this?
Please run the benchmark and lef me know!
Sent from my SAMSUNG-SGH-I897 using XDA App
carporsche said:
Hi guys
I downloaded the quadrant standard application on my Captivate. Looking into the system info i observed the following
1. CPU : samsung cortex v7. I thght the processor was a v8? I dunno whether the processor info is right.
2. The processor speed is displayes as "800 MHz"
Max freq ; 1000 MHz
MIN freq : 800 MHz
Whatz going on here?
Can someone explain this?
Please run the benchmark and lef me know!
Sent from my SAMSUNG-SGH-I897 using XDA App
Click to expand...
Click to collapse
the 800mhz I would assume means it is throttled down.
My results...
Name: ARMv7 Processor rev 2 (v71)
Current freq: 800 MHz
Max req: 1000MHz
Min freq: 100 MHz
-JChao
Just ran the benchmark and got the same thing. Please don't tell me this thing is underclocked. if so is there a program out there that will bring it up to speed?
The processor is a Samsung S5PC110 Cortex-A8 and uses the ARM v7 instruction set. It's not a version 8.
there is an APp to change your CPU clock. Don't do it though, nothing on android requires those extra 200 MHz yet. If your thinking about UI Lag, this is a software issue and not a consequence of the throttled cpu. Hang tight for a fix from developers.
With the software fix and throttled down cpu, this phone is still faster than the newest phones running 2.2 (Froyo)
SetCPU will let you force the frequency. But you shouldn't need to use it, 800MHz just seems to be the Hummingbird's idle frequency. The CPU probably just idled while the graphical benchmarks were being run.
CPU in phones never runs at 100% at all times that would kill battery , you can force it if you root your phone but that is counter productive , as it goes from anywhere from 1% to 100% of its speed when it needs to , during intensive usage or benchmarking it will reach 1000mhz , but if all you do is read text it will conserve battery.
Its obvious from this info below
Current freq: 800 MHz
Max req: 1000MHz
Min freq: 100 MHz
Yes, the Cortex A8 is an ARM7 processor. The older CPU's used were ARM11 processors.
Thankx for the info guys..
I checked again and for some reason i got confused with the processor and was writing the post from memory (my memory ). it says ARMv7 Processor rev 2 (v71).
And yes i do think the 800 MHZ is pretty fast.
I just need to get rid of the samsung UI and switch to stock android.
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itzz(AN)dRoiD
The spec sheet lists 1 GHz, and spec sheets show the operating frequency so I would assume that the CPU can run at different speeds for different workloads. Try running a couple heavy applications in the background and check it again. If all is well in the world it should clock upto 1 GHz.
carporsche said:
Thankx for the info guys..
I checked again and for some reason i got confused with the processor and was writing the post from memory (my memory ). it says ARMv7 Processor rev 2 (v71).
And yes i do think the 800 MHZ is pretty fast.
I just need to get rid of the samsung UI and switch to stock android.
-------------
itzz(AN)dRoiD
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Click to collapse
The processor is NOT 800mhz it's just throttled down to 800mhz cause of not needing the full 1ghz speed. That saves power and battery life gets extended. Laptops and desktops do the same thing.
so in other words it basically adjusts oh and also maybe the ARMv7 infrastructure is better then the 11 one
yes i do get the idea
tbae2 said:
The processor is NOT 800mhz it's just throttled down to 800mhz cause of not needing the full 1ghz speed. That saves power and battery life gets extended. Laptops and desktops do the same thing.
Click to expand...
Click to collapse
I do get the idea!.. i inquired about it bcoz nowhere it was mentioned that the processor was underclocked.. So basically the ideal processor speed is 800MHz and it can be overclocked to 1GHz is the way i see it!
sorta like that more like the speed auto adjust to your needs i think
So what kind of scores does this phone get in comparison to other new Android phones with or without 2.2. I am curious between the Quandrant scores of Hummingbird (Galaxy S), OMAP (Droid X), Snapdragon (HTC HD2/EVO 4G).
Thanks.
well the hummingbird beat the evo 4g in graphics and cpu power just search captivate benchmarks on youtube the channel name is androidandme
with mimocans lag fix ive seen people get scores as high as 1700(nexus one on 2.2 gets about 1250).
cognition 6.1 XXJVQ 2.3.4 gingerbread on my 1897 captivate
http://www.google.com/url?sa=t&sour...q93aAw&usg=AFQjCNFXnK6kfMAUUHmLjWnrNt4Mx-pZXw
Hello!
as I finaly rooted my TF (after a year of stock ) I have already hit few obstacles while making it perfect. Now i have a question regarding overclocking.
My device: ARHD Rom with guevors kernel 21.4
I use my TF at 1,6ghz via SetCPU. In CPUStats it says it doesnt use 1,4ghz and 1.5ghz freqs at all as the time at those freqs is zero. But when I clock it up to 1.4 or 1.5, it does use them (note: when set to 1.5ghz, 1.4ghz freq is still not used). What could be the reason for that?
Thank you for your answers
miHah
Looking at cpu histories it usually defaults to the lower stuff except when you do complex calculations, in which it uses as much as it can until it's done. That's why it doesn't use those middle freqs as much, if that makes any sense.
I agree with Thing o Doom. A lot depends on what the processor/software decides it needs or wants.
I stopped using a wide range of frequency like 216-1200 and stuck with a straight 1200MHz only on the min and max.
Depending on the CPU load will determine whether it even hits a certain frequency and also based on the type of governor.
If you have a governor that is set for performance and your range is 1400 - 1600, the governor interacts with the rest of the system and may ramp straight up to 1600 without every hitting 1500.
Hope that expands on Doom's answer.
I use interactive gov. and usualy cpu clocks scale at every cpu freq described in kernels scaling. I use 216-1400 now and cpu uses all clocks in that range (depends on the need ofc). But if i use 216-1600 then not all of the freqs are used. I meant to say if u scale it to 216-1600 there should be some point where cpu would use 1400mhz freq, but mine doesnt at all. So the scaling goes from 1200 directly to 1600 and no in between resulting the cpu to be more time at higher clocks when not actualy needed (when it could just use 1400 or 1500mhz).
Anyway, i now use scale of 216-1400mhz and seems to be working great dunno why I even bothered with 1600, but this one thing not scaling at those two freqs did scare me as I thought there is smth wrong with my tf
I was wondering if we can manipulate the cpu in any way in the build.prop? My MTK6577 seems to idle at 1Ghz continuously and only on ocassion after a reboot will it go to 250Mhz. It seems to not use any frequency in between, but rather jumping from 250mhz to 1ghz. Now it's stuck at 1Ghz and never changes to any other frequency no matter what governor I use. It appears to be using the "hybrid" governor.
I know no one has ever even tried it but I want to compile my own kernel for the MTK6577 for up to 1.6Ghz and Extensive mods to the governor to get way better battery life. I mean it's a Cortex A9 Dual core @ 1Ghz and it has a 3600mah battery and a 5.7" 720p AMOLED screen.
What can we do and can you send me in the right direction on as to what I will need to begin compiling my kernel? Do I need the kernel source or can I extract the kernel from my current rom, Modify it then recompile and flash?
Thanks
Does anyone know if it will eventually be possible to overclock the GPU in the Nexus 5 to match the S800 MSM8974AB chip?
The S800 chip in the Nexus 5 is the MSM8974 chip which has the GPU clock of 450MHz, but there is another version of the S800 chip called the MSM8974AB which has the GPU clocked at 550MHz.
Here is a link for anyone that is interested in seeing all the differences between the MSM8974 and the MSM8974AB
http://www.androidbeat.com/2013/09/difference-snapdragon-800-2-2ghz-2-3ghz/
It will definitely be possible with kernels. Don't know how safe it will be to overclock by 100mhz, but on my HTC One Elemental X gives the option to overclock from stock 400mhz to 550 (very bad for the device though). So the Nexus 5 will definitely be able to hit 550 as well.
Adreno 330 overclock 450MHz to 550MHz
Hello,
Is there any update about this?
I Overclocked the CPU to 2.5GHz via a custom kernel, but I am unable to pass the 450MHz of the CPU.
Please let me know if you have a solution.
Thanks
which device use MSM8974AB chip?
I have the Z1 also, which has the same chipset as the N5. There is a custom kernel for the z1 that OCs the GPU to 533mhz which I run stably with excellent battery life. So I'm sure it's possible to do the same with the N5 since it's the same processor. I'm sure one of the smart devs here can look at the github posted here: http://forum.xda-developers.com/showthread.php?t=2448613
my GOD, what did i just read
http://www.qualcomm.com/media/blog/...gies-newest-snapdragon-805-ultra-hd-processor
Adreno 420? As a heavy gamers, this thing really make me annoying -_-
I have 600MHz GPU overclock implemented in my kernel for the Xperia Z1, which uses the lower binned version of the msm8974 (the one that comes with a stock clock-speed of 2.2GHz).
We have 450/487.5/533/600 MHz scaling steps.
You can take a look at the OC commits here, it's pretty straight-forward:
https://github.com/RevolutionDev/android_kernel_sony_msm8974/commit/4136fb7713887a0561d399ecc1adc3af55d65a88
https://github.com/OmniHonami/android_kernel_sony_msm8974/commit/96dd342f1015a71e9139de8057ee16b86c6005ff
Androguide.fr said:
I have 600MHz GPU overclock implemented in my kernel for the Xperia Z1, which uses the lower binned version of the msm8974 (the one that comes with a stock clock-speed of 2.2GHz).
We have 450/487.5/533/600 MHz scaling steps.
You can take a look at the OC commits here, it's pretty straight-forward:
https://github.com/RevolutionDev/android_kernel_sony_msm8974/commit/4136fb7713887a0561d399ecc1adc3af55d65a88
https://github.com/OmniHonami/android_kernel_sony_msm8974/commit/96dd342f1015a71e9139de8057ee16b86c6005ff
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@Androguide.fr
Is it possible to control also gpu voltage?
You got 600mhz at stock voltage?
Carter07 said:
@Androguide.fr
Is it possible to control also gpu voltage?
You got 600mhz at stock voltage?
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Click to collapse
It is, but not yet implemented on the nexus 5 custom kernels.
Also mhz does not mean voltage (V) or (uVolts on this case). MHz means a frequency of 1 million times per second (used on this case for CPU, GPU, RAM speed)
GUGUITOMTG4 said:
It is, but not yet implemented on the nexus 5 custom kernels.
Also mhz does not mean voltage (V) or (uVolts on this case). MHz means a frequency of 1 million times per second (used on this case for CPU, GPU, RAM speed)
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Click to collapse
True, but @Carter07 is right that if the maximum allowed voltage is too low the GPU won't be able to sustain higher frequencies, as those demand more power.
The 600MHz OC is stable with the stock voltage, though, at least on the Z1 it is.
Androguide.fr said:
True, but @Carter07 is right that if the maximum allowed voltage is too low the GPU won't be able to sustain higher frequencies, as those demand more power.
The 600MHz OC is stable with the stock voltage, though, at least on the Z1 it is.
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Click to collapse
indeed, I misinterpreted him
You can flash Bricked kernel and use Kcontrol to force-overclock your gpu up to 650...but I wouldn't recommend anything above 550 since you will get little to no performance and it'll consume a lot more battery
Is there a huge performance boost noticable if you oc the cpu? And what's about the battery life?
lol98lol98 said:
Is there a huge performance boost noticable if you oc the cpu? And what's about the battery life?
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There's no recognisable boost in performance apparently. And yes,battery drain will be higher if you raise voltages and you also risk damage to the core.
Sent from my Nexus 5 using Tapatalk
lol98lol98 said:
Is there a huge performance boost noticable if you oc the cpu? And what's about the battery life?
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Click to collapse
CPU or GPU? Some users reported less lags (OC GPU) with energy-consuming games.
As the title says, I've noticed with my Witson module PX5 - 4 cores are running at 1.5Ghz and 4 are running at 1.2Ghz, using "Kernal Adiutor" I can't select anything higher for those cores. Could this be due to the binning process and I got a lemon or is everyone's like that? I know that with PC GPUs if the chip isn't quite up to quality they will clock them lower and sell them as a lower model.
bjt2 said:
As the title says, I've noticed with my Witson module PX5 - 4 cores are running at 1.5Ghz and 4 are running at 1.2Ghz, using "Kernal Adiutor" I can't select anything higher for those cores. Could this be due to the binning process and I got a lemon or is everyone's like that? I know that with PC GPUs if the chip isn't quite up to quality they will clock them lower and sell them as a lower model.
Click to expand...
Click to collapse
Just to answer my own question, it seems ARM processors often have what's called a "big.LITTLE" configuration where 4 powerful cores are for heavy duty work, and 4 smaller cores are for low power tasks to help battery life https://developer.arm.com/technologies/big-little
If the usage falls below a threshold it will migrate the whole thread to the smaller cores and vise versa