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Sid The Kid

Suspended
Original poster
Jul 10, 2017
91
4
Hello,

An Apple Specialist on Live Chat told me that 512GB SSD and 1TB SSD have no difference in speed. Only on storage. Is it true?

But I think 512GB is faster than 128GB. What about 256GB?

But how can it be faster than another one?

Thanks
 
IMO, in some instances the 512 is quicker, but only on a test. In real world, you won't notice. I have the 1TB in my 2017. It's 70% full. This is from today. It's roughly the same as the 512 test you'll see. Stress was set at 4g. :apple:
DiskSpeedTest.png
 
The 512GB SSD in a 2017 iMac seems to be in the same ballpark as well.

Screen Shot 2017-08-06 at 7.37.21 PM.png
 
Kid, you're not going to notice "the difference" in real-world applications... ;)
 
The small SSD's are slower in benchmark testing because of less internal parallelism, which is in turn due to fewer flash memory chips needed. Once you add enough flash chips to max out the number of streams that the particular SSD controller and board design allow, larger capacity doesn't run any faster. But that's mostly theory and benchmarking; in real life you would be hard pressed to detect the difference across sizes, even slowest to fastest.
 
IMO, in some instances the 512 is quicker, but only on a test. In real world, you won't notice. I have the 1TB in my 2017. It's 70% full. This is from today. It's roughly the same as the 512 test you'll see. Stress was set at 4g. :apple:View attachment 711789

Fast :0
[doublepost=1502146425][/doublepost]
The 512GB SSD in a 2017 iMac seems to be in the same ballpark as well.

View attachment 711846

Fast :0
Just for comparison ... here is my 2TB SSD in the 2017 iMac:

View attachment 711791

Fast :0
[doublepost=1502146548][/doublepost]
The small SSD's are slower in benchmark testing because of less internal parallelism, which is in turn due to fewer flash memory chips needed. Once you add enough flash chips to max out the number of streams that the particular SSD controller and board design allow, larger capacity doesn't run any faster. But that's mostly theory and benchmarking; in real life you would be hard pressed to detect the difference across sizes, even slowest to fastest.

Thank you for explaining.
[doublepost=1502146581][/doublepost]
Kid, you're not going to notice "the difference" in real-world applications... ;)

True :3
 
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