[Q] Real RAM much less than 1,5Gb ?

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donP73

Senior Member
Oct 21, 2010
267
37
BERGAMO
In phone specifications CPU-Z and Antutu say only 1258MB RAM, not 1536MB (1,5Gb)...

It's only me the unluck guy? :(
 
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leripe

Senior Member
Mar 18, 2012
1,514
889
Well first of all, anything related to sizes in computer world is not exact since someone decided that 1mb is 1000kb not 1024kb. So if a device has example 1,5GB ram, it's never really exactly 1,5GB.
Then secondly the system reserves some amount of the ram to use, so a phone will never have 1,5GB free ram if it's marketed having 1,5GB ram.
Edit: Thirdly, you have to compare the ram usage to a same phone with same firmware, settings, apps and updates to get real information.
 
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paffo

Senior Member
Mar 16, 2010
196
64
Well first of all, anything related to sizes in computer world is not exact since someone decided that 1mb is 1000kb not 1024kb. So if a device has example 1,5GB ram, it's never really exactly 1,5GB.

@leripe: It only applies to data storage devices, not ram.
RAM: 1.5Gb = 1536 Mb = 1572864kb = 1610612736b
DISK: "1.5Gb" ~ 1500000000b ~ 1464844kb ~ 1431Mb < 1,4Gb

But rest is right. Most of the ram is reserved for other hardware, ex GPU.
 
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    Well first of all, anything related to sizes in computer world is not exact since someone decided that 1mb is 1000kb not 1024kb. So if a device has example 1,5GB ram, it's never really exactly 1,5GB.

    @leripe: It only applies to data storage devices, not ram.
    RAM: 1.5Gb = 1536 Mb = 1572864kb = 1610612736b
    DISK: "1.5Gb" ~ 1500000000b ~ 1464844kb ~ 1431Mb < 1,4Gb

    But rest is right. Most of the ram is reserved for other hardware, ex GPU.