Anyone know what kind of memory it'll use? DDR2 or DDR3? - Galaxy S II Q&A, Help & Troubleshooting

Topic. I'm hoping DDR3.

ddr3 in a phone would have a big power requirement... don't be surprised if it's ddr2
but I would love it if it was ddr3

More probably Mobile DDR2.

teh_pwnage said:
ddr3 in a phone would have a big power requirement... don't be surprised if it's ddr2
but I would love it if it was ddr3
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Actually DDR3 would require less power than DDR2.

I guess someone will have to dissect it once the device is out

Intratech said:
Actually DDR3 would require less power than DDR2.
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I guess I'm wrong in my interpretation then I thought it needed more... I was going off my desktop pcs and my i7 with ddr3 has higher ram voltages then my core 2 quad with ddr2... but then again that could just be because of my OCs lol
But I'm sure we can agree that it's much more costly to deploy ddr3 in a mobile form factor so as a result it's almost definitely going to be mobile ddr2

SlimJ87D said:
Topic. I'm hoping DDR3.
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Not like it matters anyway; the performance benefits are not significant.

With desktop RAM, DDR3 is normally consuming less power than DDR3. But DDR2 has been around much longer and there are a lot more optimized low power version especially for mobile devices. As far as I know, SGS2 uses LPDDR2.

teh_pwnage said:
ddr3 in a phone would have a big power requirement... don't be surprised if it's ddr2
but I would love it if it was ddr3
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Click to collapse
What....
Destop:
DDR1 = 2.5V (One = 8.5W)
DDR2 = 1.8V (One = 4.5W)
DDR3 = 1.5V (One = 3.0W)
more power?
Mobile:
LDDR1 = 1.8V
LDDR2 = 1.2V
LDDR3 = 0.9-1.0V
more hot?
S2 can't use the LDDR3, because of samsung not have make mobile DDR3 now.

xos84292 said:
What....
Destop:
DDR1 = 2.5V (One = 8.5W)
DDR2 = 1.8V (One = 4.5W)
DDR3 = 1.5V (One = 3.0W)
more power?
Mobile:
LDDR1 = 1.8V
LDDR2 = 1.2V
LDDR3 = 0.9-1.0V
Click to expand...
Click to collapse
thanks didn't know that's how my desktops used to treat them at auto lol... right now I have some OCZ DDR2 ram running at 1.6 and some mushkin DDR3 running at 1.9...
we've been over this I ****ed up....... DROP IT

xos84292 said:
Mobile:
LDDR1 = 1.8V
LDDR2 = 1.2V
LDDR3 = 0.9-1.0V
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Click to collapse
I can't seem to validate those numbers.
LPDDR2 works at 1.2V.
There isn't any LPDDR3 specification I can find, yet.
And lower power DDR3L works at 1.35V.
http://en.wikipedia.org/wiki/Mobile_DDR
http://en.wikipedia.org/wiki/DDR3_SDRAM

Related

Star Trek 100 variants are they same or different?

Hi All,
I am under the impression that all Star Trek 100 variations have exactly the same hardware except the 3125 comes with an extended battery (thus a bigger battery cover). But wiki says 3125 has more Memory: 128 MB ROM, 64 MB RAM than the other variant's 64 MB ROM, 64 MB RAM. Is this true?
Thanks.
JSenthil
JSenthil said:
Is this true?
Click to expand...
Click to collapse
Yes. And I don't know why you would assume otherwise.

Question on processor based on factsheet

Motorola url: http://mediacenter.motorola.com/Fact-Sheets/Motorola-ATRIX-4G-Fact-Sheet-353b.aspx(Screenshot attached for those who are on device.)
Line of interest:
Processor: 2 processor cores running at 1GHz each
Nvidia url: http://www.nvidia.com/object/tegra-2.html
Lines of interest:
CPU: Dual-Core ARM Cortex A9
Frequency: 1 GHz, per core
Does this mean we have an effective 2GHz processing power in this device.
On a side note, my laptop is a quad core 2GHz, with each core at ~500MHz adding up to 2GHz in all. So that line got be confused thinking.
I've never heard of a 500Mhz quad core processor, but I have heard of a 2Ghz quad core processor, effectively providing 8GHz of processing power.
Nah, it really doesn't work like that. Each core will only run at 1ghz MAX, the benefit to having a second (or more) cores is that while you are doing something the second core is doing background stuff and you aren't getting bogged down. Or if the app supports it it can use both. Here's where things get fun....if your app uses both cores running at 1 ghz each it can TECHNICALLY process as fast as a 2ghz SINGLE CORE but its more like you get 50%-75% more performance from the second core. So I guess TECHNICALLY it would be the same as a single core 2ghz CPU...but at the same time not really? A 2ghz single would do things faster on single tasks, but multitasking the dual core is way better IMO. Hope that helps some.
harolds said:
I've never heard of a 500Mhz quad core processor, but I have heard of a 2Ghz quad core processor, effectively providing 8GHz of processing power.
Click to expand...
Click to collapse
Check in any CPU analyzer. Mine is a quad core, and each processor gets noted as ~500 MHz. I think u can find it even in 'device manager'.
Initially I too thought that I was getting 8GHz of power in my CPU, only to find later that it was infact 500x4.
Strange, my office system (desktop) is a dual core, and shows it at each core at 3GHz. Will check once more on my laptop when I get home. This is crazy!
But good to know. Even the graphics part of it has 8 cores. Was going through the specs. It rocks!
diablo009 said:
Check in any CPU analyzer. Mine is a quad core, and each processor gets noted as ~500 MHz. I think u can find it even in 'device manager'.
Initially I too thought that I was getting 8GHz of power in my CPU, only to find later that it was infact 500x4.
Strange, my office system (desktop) is a dual core, and shows it at each core at 3GHz. Will check once more on my laptop when I get home. This is crazy!
But good to know. Even the graphics part of it has 8 cores. Was going through the specs. It rocks!
Click to expand...
Click to collapse
Are you sure your processor hasn't been underclocked as part of some sort of battery saving feature? I don't think most applications can even utilize all 4 cores, which would mean individual applications would perform...pretty slowly. Right?
chbearsrock said:
Are you sure your processor hasn't been underclocked as part of some sort of battery saving feature? I don't think most applications can even utilize all 4 cores, which would mean individual applications would perform...pretty slowly. Right?
Click to expand...
Click to collapse
This has always been baffling me. I'll check today evening n update here. But now I am super happy abt the processor in atrix.
if you are in windows run cpu-z and post a screen shot.
skaboss610 said:
if you are in windows run cpu-z and post a screen shot.
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Click to collapse
Here u go.
its this processor. each core runs at a clock of 2ghz
http://ark.intel.com/Product.aspx?id=40480
according that screen shot, you have
2GHZ * 4CORES = 8GHZ
so... you had 8ghz all along!
Techcruncher said:
according that screen shot, you have
2GHZ * 4CORES = 8GHZ
so... you had 8ghz all along!
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Click to collapse
Aaah!!! No wonder I paid $1300 for this laptop in July 2009. And no wonder games released even in 2011 are playing so well without any frame rate issue.
Thanks for clearing this up kind sir.

Teardown of the Xperia Play: Review

Teardown of the Xperia Play
This might be useful for the developpers and curious people like me
Just for you to know we have a great processor and the best RAM for performance
Follow this link for more info:
http://www.ubmtechinsights.com/teardowns/sony-xperia-play-teardown/?cid=137
1 gb internal ?? I wish -.-
We have only around 380
Sent from my R800i using XDA Premium App
It says we have 2gb ddr2 ram and an 8gb nand lol
Sent from my R800i using Tapatalk
Gb != GB guys !
1Gb = 128 MB.
But the teardown is damn nice. IC decapping and stuff .... they take the term "teardown" damn serious xD
Regards,
iCEQB
I though 1024mb = 1gb lol
Sent from my R800i using Tapatalk
1024 MB = 1 GigaBYTE correct !
But 1 GigaBIT = 128 MB !
GigaBIT (Gb) and GigaBYTE (GB) are two complete different things
Regards,
iCEQB
pay special attention to the "b".
1B = 8b
or
1 byte = 8 bit
which means
8 Gb = 1 GB
computers only deal with bytes, that is why you only see the lower value.
Fun fact: check the advertised internet speed from you provider, almost all of them use "bit", witch is 1/8 of the actual speed you get, witch is in "byte"
oh, and byte is used mostly because it represents one character, while bit is used to represent a 0 or 1,
Thanks guys, i never knew that lol
Sent from my R800i using Tapatalk
Sent from my R800i using Tapatalk
What I find interesting on this is
Other major design wins include Micron’s MT29F8G16ADBDAH4 8Gb (1GB) NAND Flash (for storage) and Broadcom’s BCM4329 Bluetooth, WiFi and FM radio IC.
FM Radio, is this the same as the Nexus One, comes with the hardware but no application/kernel support?
I think I read somewhere that they left the FM-radio out cause of battery consumption and it really was a drainer on my htc desire hd.
Regards Dousan...
m3dteam said:
pay special attention to the "b".
1B = 8b
or
1 byte = 8 bit
which means
8 Gb = 1 GB
computers only deal with bytes, that is why you only see the lower value.
Fun fact: check the advertised internet speed from you provider, almost all of them use "bit", witch is 1/8 of the actual speed you get, witch is in "byte"
oh, and byte is used mostly because it represents one character, while bit is used to represent a 0 or 1,
Click to expand...
Click to collapse
Not quite, they use bits, which is 8 times what you think you are getting...if they say 8 meg broadband, you're getting 8 megabits or 1 megabytes broadband.
Sent from my R800i using XDA App
kenshindono said:
Teardown of the Xperia Play
This might be useful for the developpers and curious people like me
Just for you to know we have a great processor and the best RAM for performance
Follow this link for more info:
http://www.ubmtechinsights.com/teardowns/sony-xperia-play-teardown/?cid=137
Click to expand...
Click to collapse
Just a quick question. Sony Ericsson spec for Xperia Play is 512 MB of RAM, but the Elpida DDR2 RAM is just 2Gb which means only 256 MB of RAM. Is there another 256 MB of RAM somewhere else?

[Q] Question about 512MB RAM in P500

According to the specifications the ram in LG Optimus One is 512MB, but in my phone its showing up 419 MB is that a problem, or is that same for all?
It's normal. I heard that some of RAM is used for graphic card unit.
charan315 said:
According to the specifications the ram in LG Optimus One is 512MB, but in my phone its showing up 419 MB is that a problem, or is that same for all?
Click to expand...
Click to collapse
It's normal man. Sdcard 8gb but it's show 7,46gb
Sent from my LG-P500 using xda premium
my 4GB sandisk sd card , show's me only 3.19 GB's
Its normal, its the partitioned... Like mine is 8GB sdhc, and now is 6.91 gb...
Sent from my Nexus One using XDA CM7.1.0.1 Nightlies
reason
The difference is due to the difference in the calculation parameters. We take 1024 in calculation but the manufacturers takes 1000 as their calculation unit.
1024 * 8 = 8192
1000 * 8 = 8000
You might be thinking that this is not a big difference. The other factor is the file system information and files which are stored along

[Q] Archos 80 Turbo vs Archos 80 1ghz

Is there any noticeable performance difference between these two versions?
yes 1.5 ghz is much smoother, apps run better, most have 1gb RAM. However, it still has problems. If you are set on an archos, go for the 1.5 turbo, and make sure it has 1gb ram (mine said it on the box)
Shano56 said:
yes 1.5 ghz is much smoother, apps run better, most have 1gb RAM. However, it still has problems. If you are set on an archos, go for the 1.5 turbo, and make sure it has 1gb ram (mine said it on the box)
Click to expand...
Click to collapse
What kind of problems? I'v found one with 1GB RAM, 16gb but with 1ghz core. Do you think that would be OK? Should i expect and little bit ocing?
athankar75 said:
What kind of problems? I'v found one with 1GB RAM, 16gb but with 1ghz core. Do you think that would be OK? Should i expect and little bit ocing?
Click to expand...
Click to collapse
you can oc 1ghz to 1.2, which helps a little. I would highly recommend 1.5 ghz tho if you can get one.
For the problems, just the standard bugs, archos firmware is still buggy, however 4.0.7 works good for most.

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