I noticed that system info apps like CPU X say it has a total of 3.34GB, and I wondered if that meant the processor just can't make use of the full 4GB due to the processor architecture. It seems like a waste, but I've seen plenty of 32-bit computers with 4GB of RAM installed.
The reason you see less ram its because there is a dedicated ram for the gpu.
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Yes, the 820 is 64bit.
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Thanks guys.
Related
Is it 512mb of DDR2 ram, equivalent to the iPad2?
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Hi downsay,
I'm not sure about its equivalent to the iPad2, but yes, it is DDR2.
Hynix H9TKNNN4K 512 MB of Mobile DDR2 RAM
downsay said:
Is it 512mb of DDR2 ram, equivalent to the iPad2?
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iPad 2 has 512MB like the Fire, but not sure if its DDR2 equivalent or not. I'd guess it is.
Sent from my rough sketch of a Vibrant on a brick.
Both iPad 2 and Kindle Fire have 512MB of LPDDR2. Additionally, they both have SoC's with dual ARM Cotex A9 CPU's. The buttery performance of the iPad 2 comes from a much better GPU and very good software integration (as well as limitations on multi-tasking)
Hello guys... I'm galaxy S3 user. I just want to know that Galaxy s3 & htc one x has same 1 GB ram but for galaxy s3 its showing 778 mb ram in hardware information but htc showing proper 1 gb ram. why this is? Infact, i noticed all htc have same ram as in hardware information bar. Mean s3 have less ram acording to htc one x?
Some RAM is reserved for camera, hardware decoder, etc. I doubt HTC used separate memory chip for each of these, so ONE X software must be reporting false values.
BTW, there are 833 mbytes of RAM available on latest JB leaks, and enthusiasts are looking for a way to increase this number further.
How dare you mention that name here
Be gone foul beast, back to the lair I say, back!
Just enjoy your phone.
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Reserved for other functions
Stacks with my previous memory changes: total memory: 857mB for now.
Perseus kernel dev succeeded to increase more rams at jb ;D
system used
Thanx all for giving information. But some says that ram reserved for system & some says reserved for camera & hardware.. hhhmmm then what about htc ram? Is it shows proper 1GB ram included reserved system ram or excluded system ram as sgs3 has.??? By mean as shows 778 mb out of 1GB then where is 222 mb ram which is left. Is 222 mb ram reserved for system use?
One X has more free Ram but everyone who tried both says S3 uses it's Ram better, and the US proves bigger isn't always better.
mrjoy said:
Hello guys... I'm galaxy S3 user. I just want to know that Galaxy s3 & htc one x has same 1 GB ram but for galaxy s3 its showing 778 mb ram in hardware information but htc showing proper 1 gb ram. why this is? Infact, i noticed all htc have same ram as in hardware information bar. Mean s3 have less ram acording to htc one x?
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You are wrong. This has nothing to do with the phones themselves but chip manufacturers. Look at the HTC One X LTE versions, they only have 600mb of RAM.
Yes the International version has close to 1GB of RAM free. This is mostly due to Tegra 3 having dedicated video ram to their GPU where the Exynos and S4 do not.
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SlimJ87D said:
You are wrong. This has nothing to do with the phones themselves but chip manufacturers. Look at the HTC One X LTE versions, they only have 600mb of RAM.
Yes the International version has close to 1GB of RAM free. This is mostly due to Tegra 3 having dedicated video ram to their GPU where the Exynos and S4 do not.
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aahh.. means s3 does not have video ram???
Yes, we can squeeze out as much ram as possible but I believe a good portion of it will always be reserved for hardware.
I did a lot of studies with my US One X and the International One X.
Anyways, to answer your question it is the Tegra 3 chip set that has 1GB of RAM, it's like that on the Asus transformer also.
Compare the US One S and One X, you see the same Ram usage pretty much and same SoC. But the international with Tegra 3 and everything else that uses a Tegra 3 from what I have seen (there might be some with 4glte radios that require ram also) has 1GB of RAM.
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it mean tegra 3 chip is more faster phone than galaxy s3.??? bcoz tegra 3 chip has 1 GB of RAM.
mrjoy said:
it mean tegra 3 chip is more faster phone than galaxy s3.??? bcoz tegra 3 chip has 1 GB of RAM.
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No.
The S3 has 1gb of ram too.
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No, not at all. RAM, CPU and (if the gui is properly programmed) GPU can all affect how your phone functions and feels. The S3 uses a more better engineered chip set than the Tegra in the CPU and GPU department.
Most importantly is software though. As the way things are, if Android doesn't figure out a way to optimize their OS to universally work for any kind of hardware it might lose out to WP8.
Not in the hacking department though since WP8 will be closed source.
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@SlimJ87D
thnx for giving kind information.... I respect your answere..
Tegras don't have dedicated GPU RAM, they don't differ to the Exynos in the way they handle that. The reason is purely software based, and some SoCs having reserved memory spaces for internal functions. I have now 856mB useable on my kernel for example.
The leaked jb firmwares gives you 833mb ram.
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AndreiLux said:
Tegras don't have dedicated GPU RAM, they don't differ to the Exynos in the way they handle that. The reason is purely software based, and some SoCs having reserved memory spaces for internal functions. I have now 856mB useable on my kernel for example.
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See that would make sense if every Tegra device from different companies like Asus, htc and Motorola, etc would have different ram uses since they all build their roms with custom ui, etc. Every company has their own custom kernels as well. But that is not the case, or is it a giant coincidence most if not all the Tegra devices show .950 gb free of memory? Including the Nexus 7.
forum.xda-developers.com/showthread.php?t=1798299
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SlimJ87D said:
See that would make sense if every Tegra device from different companies like Asus, htc and Motorola, etc would have different ram uses since they all build their roms with custom ui, etc. Every company has their own custom kernels as well. But that is not the case, or is it a giant coincidence most if not all the Tegra devices show .950 gb free of memory? Including the Nexus 7.
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Sorry but no you don't know what you are talking about, Nvidia does the basic platform kernel for their SoC, the manufacturers don't do anything more than adapt it. ROM also doesn't have anything to do with it
Okay so this is rarely talked about, which I'm shocked, but the Droid Turbo is 64bit. It's on Motorola's official website spec sheet (scroll to the bottom). What do you guys think? What are the benefits (if any since its not 4GB). Why has this been a huge oversight?
http://www.motorola.com/us/droid-tu...&utm_campaign=5152763&PublisherName=Skimlinks
tnt2sniper said:
Okay so this is rarely talked about, which I'm shocked, but the Droid Turbo is 64bit. It's on Motorola's official website spec sheet (scroll to the bottom). What do you guys think? What are the benefits (if any since its not 4GB). Why has this been a huge oversight?
http://www.motorola.com/us/droid-tu...&utm_campaign=5152763&PublisherName=Skimlinks
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It might be 64-bit memory interface, but KK is not 64-bit, nor is the SD805.
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I decided to check more into it and found this website.
http://www.anandtech.com/show/8035/qualcomm-snapdragon-805-performance-preview
"The memory interface on S805 features two 64-bit LPDDR3-800 partitions (4 x 32-bit external interfaces), each capable of supporting 1600MHz datarate LPDDR3 for an aggregate peak theoretical bandwidth figure of 25.6GB/s."
Is that what they are talking about? Anyone care to explain what that means, because I'm completely lost. I'm assuming it has to do with RAM?
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tnt2sniper said:
Okay so this is rarely talked about, which I'm shocked, but the Droid Turbo is 64bit. It's on Motorola's official website spec sheet (scroll to the bottom). What do you guys think? What are the benefits (if any since its not 4GB). Why has this been a huge oversight?
http://www.motorola.com/us/droid-tu...&utm_campaign=5152763&PublisherName=Skimlinks
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This:
Hemlocke said:
It might be 64-bit memory interface, but KK is not 64-bit, nor is the SD805.
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graymonkey44 said:
I decided to check more into it and found this website.
http://www.anandtech.com/show/8035/qualcomm-snapdragon-805-performance-preview
"The memory interface on S805 features two 64-bit LPDDR3-800 partitions (4 x 32-bit external interfaces), each capable of supporting 1600MHz datarate LPDDR3 for an aggregate peak theoretical bandwidth figure of 25.6GB/s."
Is that what they are talking about? Anyone care to explain what that means, because I'm completely lost. I'm assuming it has to do with RAM?
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It is referring to RAM, not to the processor itself. The 805 is the last 32 bits processor for Qualcomm, maybe next year we will see the 808 and 810 who are supposed to be 64 bits.
:fingers-crossed:
What will a 64 bit processor do for your smartphone experience that 32 cannot accomplish?
bwheelies said:
What will a 64 bit processor do for your smartphone experience that 32 cannot accomplish?
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At this point, nothing. Actually, in terms of needs, a phone wouldn't need more than a dual core and 2GB on RAM, most of the apps are not even optimized for multiple cores, but you know, marketing and specs race...
:silly:
64 bits allows two big things - address memory more than 4GB and gives you larger registers so if the OS/app is 64bit it can basically work faster at the same clock speed. It will make a difference but its not something to worry about.
How many more posts need to be made about this?
graymonkey44 said:
"The memory interface on S805 features two 64-bit LPDDR3-800 partitions (4 x 32-bit external interfaces), each capable of supporting 1600MHz datarate LPDDR3 for an aggregate peak theoretical bandwidth figure of 25.6GB/s."
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This is exactly right. We get higher memory speeds from our RAM. Considering this is directly feeding our Adreno chip it's important. Just like with AMD APU's the higher the RAM speed the higher the GPU performance. Since we're pushing 1440p this is beneficial. For any other task this is negligible.
PLEASE STOP WITH MORE THAN 4GB OF RAM TALK Nobody needs more than 3.5gb 64 bit allows on a phone.
The biggest advantage with 64bit is ARM's v8 instruction set. We'll be able to do more per each cpu cycle.
Please read. http://www.androidcentral.com/why-64-bit-processors-really-matter-android
So my question for the XDA community is why are only 3.5GB of the 4GB DDR4 available? Is this just poor optimization or mismanagement on Samsung's end?
cepheid46e2 said:
So my question for the XDA community is why are only 3.5GB of the 4GB DDR4 available? Is this just poor optimization or mismanagement on Samsung's end?
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It's neither mate. It reserves 432mb....so that's 4gb lol
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I don't know about, I have desktops and laptops than run on 4GB, why would a stupid phone need that much ROM.
ilogik said:
I don't know about, I have desktops and laptops than run on 4GB, why would a stupid phone need that much ROM.
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A PC uses DDR while a mobile uses LPDDR RAM. A PC RAM performance is considerably higher than a power optimized mobile RAM. Also, do consider it's a 64-bit processor, so it will eventually consume more RAM compared to a traditional 32-bit processor due to its 64-bit address width & more.
So a 64-bit PC using 4 GB is equivalent to a mobile running on 4 GB. And so would be the reserved memory.
The Nexus 10 is suppose to have "2GB" of ram, but my Nexus 10 only have "1099"
The Nexus 10 is suppose to have "2GB" of ram, but my Nexus 10 only have "1099"
what is problem?
android 5.1.1
Round it up and it's 2gb
Mine is also showing 1GB of Ram and its runs slow. Is it supposed to have 2?
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In later software releases, they decided to allocate more of the ram to the video. Search this forum for a more detailed answer if interested.
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if i recall correctly, about 900mb is reserved for the gpu.
veitograf said:
if i recall correctly, about 900mb is reserved for the gpu.
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I remember finding this out a few years ago and being pretty upset at the time. The tablet advertises 2GB of RAM, and yet about 1GB of it is only usable for the expected advertising purpose.
It's like me advertising my computer has 12GB of RAM, meanwhile, 4GB of that is dedicated to the GPU (which on it's own isn't really a problem, but it would make more sense to advertise 8GB)
Even then it would still be 12GB.
Let me get a little technical.
If you have an APU based PC, the GPU is on the same die as the processor. So when you use the GPU portion of the APU, it will use the RAM. How much? It depends on the load.
You can still use all of it though, so it isn't a problem. When you aren't using the GPU, all of your RAM is available.