Greetings from Russia! We have opened the Samsung I7500. We looked at the marking of the chip. Here it is: KMXME0D0CM-B601 turns out that there is 1GB RAM! What do you think about this? This decoding chip See here. Maybe RAM is disabled to save energy? In any case, very interesting! I apologize for bad English. Thanks.
Help Sensation. Perhaps 1GB RAM!
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jthreads
Well-Known Member
as my understanding,
9. DRAM I/F & Density & Vcc& Org.
1G (Bits) = 128MBytes.
The RAM size spec. was in "Bits" in most case. and NAND size was "Bytes"
Absolutely right, but then he sent this graphic with detailed data
as my understanding,
9. DRAM I/F & Density & Vcc& Org.
1G (Bits) = 128MBytes.
The RAM size spec. was in "Bits" in most case. and NAND size was "Bytes"
wow g1 has 256good news for xda
Galaxy with 1024 mb !! Come on devs uncap the memory for us ! I love russia xd
:d:d:d
Rastaman-FB
Extreme Android User
this is not true. theres no mobile device on the market for winmo or android that has 1gig of ram
Absolutely right, but then he sent this graphic with detailed data
Don't get too exciting.
I believed that is mis-understanding of spec. And I believe SAMAUNG did not made 8Gbits(1GBytes) DDR in one chip for market yet.
did you remember the physical size of 1GB DDR Module used in Notebook, that's NO WAY inside this phone.
Take a look at the http://www.samsung.com/global/business/semiconductor/products/fusionmemory/downloads/moviNAND_mmc4_2_support.pdf .
In table 4, second and third columns are equivalent. E.g. 512Mbyte=2G*2.
If 2G*2 = 512 Mbyte, then 1G = 512Mbyte / 4 = 128 Mbyte
In table 4, second and third columns are equivalent. E.g. 512Mbyte=2G*2.
If 2G*2 = 512 Mbyte, then 1G = 512Mbyte / 4 = 128 Mbyte
kam187
Android Expert
Yeah its in 'bits'. Remember the more ram you have the more address lines you need to reference it. That has an affect on caching and other internal structures of the CPU.
128 = 7 bits
256 = 8 bits
512 = 9 bits
Thats why usually you wont see more than 256mb on any bus. Phones with more than 256mb have some internal RAM too (internal to the CPU) on a seperate bus. Thats where these common numbers come from:
128 + 32internal = 160mb
128 + 64internal = 192mb
256 + 32internal = 288mb
256 + 64internal = 320mb
Its unlikely you'll see more than 320mb ram in the short term unless a processor comes out with a second memory bus or more internal RAM. Its unlikely they would increase the bus width just for memory
128 = 7 bits
256 = 8 bits
512 = 9 bits
Thats why usually you wont see more than 256mb on any bus. Phones with more than 256mb have some internal RAM too (internal to the CPU) on a seperate bus. Thats where these common numbers come from:
128 + 32internal = 160mb
128 + 64internal = 192mb
256 + 32internal = 288mb
256 + 64internal = 320mb
Its unlikely you'll see more than 320mb ram in the short term unless a processor comes out with a second memory bus or more internal RAM. Its unlikely they would increase the bus width just for memory
mrqs
Android Expert
ftfy
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