SSD Question

hacksaw1101

macrumors newbie
Original poster
Jun 12, 2015
3
0
Quick question and maybe this is dumb but...

I recently bought a fully specced 13" 2015 MBP Retina. The SSD is 1 TB. I have always understood 1TB to actually be 1024 GB. When looking at the drive in Finder or About This Mac it reads a capacity of 999.32 GB. So my question is where are my other 24+ GB?
 

T5BRICK

macrumors G3
Aug 3, 2006
8,102
2,095
Oregon
Quick question and maybe this is dumb but...

I recently bought a fully specced 13" 2015 MBP Retina. The SSD is 1 TB. I have always understood 1TB to actually be 1024 GB. When looking at the drive in Finder or About This Mac it reads a capacity of 999.32 GB. So my question is where are my other 24+ GB?
Your understanding doesn't match up with the manufacturers.

https://support.apple.com/en-us/HT201402
 

hacksaw1101

macrumors newbie
Original poster
Jun 12, 2015
3
0
No I mean Apple sells 128, 256, 512 and 1TB. Seems like it would make more sense to call them 125, 250, 500 and 1TB.
 

T5BRICK

macrumors G3
Aug 3, 2006
8,102
2,095
Oregon
No I mean Apple sells 128, 256, 512 and 1TB. Seems like it would make more sense to call them 125, 250, 500 and 1TB.
No, they'er a 128, 256 and 512GB drives. Those are the actual capacities of the drives. Why would they call them something else?

Maybe I shouldn't be surprised, but in this day and age I don't get why this question is still being asked. HDDs sizes typically haven't been reported correctly by the operating system.
 

cozy1234

macrumors newbie
May 22, 2015
4
0
Quick question and maybe this is dumb but...

I recently bought a fully specced 13" 2015 MBP Retina. The SSD is 1 TB. I have always understood 1TB to actually be 1024 GB. When looking at the drive in Finder or About This Mac it reads a capacity of 999.32 GB. So my question is where are my other 24+ GB?
Yes but there is something difference
1TB is 1024GB of course
but to the company
1TB is 1000GB
there is difference

Of course 1GB is 1000MB to the company
actually it is not 1GB
 

simonsi

macrumors 601
Jan 3, 2014
4,850
734
Auckland
Yes but there is something difference
1TB is 1024GB of course
but to the company
1TB is 1000GB
there is difference

Of course 1GB is 1000MB to the company
actually it is not 1GB
It still adds up to something that really doesn't matter. By Apple's definition your storage reporting from Finder is 99.932% accurate at least...
 

mac8867

macrumors 6502
Apr 5, 2010
457
22
Saint Augustine, FL
Hard disk space has ALWAYS been reports in whole 1,000's ... always. Don't get confused with RAM which is reported in a "2 to the power" (1024, 2048 etc etc)

So, a 20MB hard drive was always 20,000,000 bytes, always.

1TB = 1000 GB = 1,000,000 MB

Just the way it has always been.
 

yjchua95

macrumors 604
Apr 23, 2011
6,725
231
GVA, KUL, MEL (current), ZQN
Yes but there is something difference
1TB is 1024GB of course
but to the company
1TB is 1000GB
there is difference

Of course 1GB is 1000MB to the company
actually it is not 1GB
Actually it still is.

In storage, 1GB = 1000MB.

In memory (RAM), 1GB = 1024MB.

Storage has always been reported in this way, while RAM values have always been reported in 2^x values.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.