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iPhone 6+ NAND Performance Thread

V

VoilaiPhone

macrumors regular
Original poster
Sep 19, 2014
146
56
Done by PhoneDoctor app

Capacity: 64GB
Factory : F2

my write speed is lower than other 64gb model by 140 mbps average.. guess my phone is lucked out?
 

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VoilaiPhone said:
Done by PhoneDoctor app

Capacity: 64GB
Factory : F2

my write speed is lower than other 64gb model by 140 mbps average.. guess my phone is lucked out?
Click to expand...

I find a huge variability in read and write scores when I use Phone Doctor (write speeds between 80 and 115 MB/sec, read speeds between 590 and 870 MB/sec).
 
Satori said:
I find a huge variability in read and write scores when I use Phone Doctor (write speeds between 80 and 115 MB/sec, read speeds between 590 and 870 MB/sec).
Click to expand...

There have been reports coming from Korea that 64GB version of iPhone 6+ have different types of NAND. Some lucky ones have MLC-type NAND, which shows a better performance than the ones with TLC.

Some 64GB versions shows the read speed between 200 min to 290 max and read speed 690 to 800
 
VoilaiPhone said:
There have been reports coming from Korea that 64GB version of iPhone 6+ have different types of NAND. Some lucky ones have MLC-type NAND, which shows a better performance than the ones with TLC.

Some 64GB versions shows the read speed between 200 min to 290 max and read speed 690 to 800
Click to expand...

How do you check the NAND type?
 
EltonT said:
How do you check the NAND type?
Click to expand...

You have to tear your phone apart. I've done it.

SK Hynix is the only company that provides MLC-type NAND for iPhone 6+ 64GB Model.

Here's what I posted earlier.

According to a news report from Korea, there are three companies that provide NAND for iPhone 6+ 64GB.

Companies: SanDisk, Toshiba, and SK Hynix.

Hynix only provides MLC. The other two provides TLC.
 
What type of performance are we talking about? In my ignorance, I don't think its going to be noticeable in real world usage.
 
VoilaiPhone said:
It does make a difference. Write speed affects OS performance..
Click to expand...

I'm not arguing that it won't affect performance but how much real world performance? Are we talking about being slow by seconds, thousandths or milliseconds? On most usages, will it be noticeable?
 
maflynn said:
I'm not arguing that it won't affect performance but how much real world performance? Are we talking about being slow by seconds, thousandths or milliseconds? On most usages, will it be noticeable?
Click to expand...

By seconds, stutters, etc.

It is noticeable. Plus, you want the best hardware for the money you spent. Am I wrong?

----------
Satori said:
No doubt that is true. However, when I use my iP6+ it feels super responsive despite the fact that my write/read speeds seem to suggest I have the TLC NAND.
Click to expand...

Just hope that it is not SanDisk..
 
VoilaiPhone said:
By seconds, stutters, etc..
Click to expand...
Can you provide the statistics to back up that claim?

I'm not arguing that different memory makers will have different performance results but I do find it hard to believe that a given NAND memory operation will literally be seconds slower from one maker to another. Memory operations are typically in the millisecond range and to have one that takes a full second or seconds seems kind of hard to believe.
 
VoilaiPhone said:
Look up the difference between MLC and TLC on Google..
Click to expand...

I know the difference. In fact, are you sure you don't mean SLC?

You did not answer my question. Is there an actual, measurable performance drop in OS responsiveness on a mobile device due to the difference in write speed on TLC over MLC? Where are the figures that back that up?

----------
VoilaiPhone said:
By seconds, stutters, etc.
Click to expand...

Do you have a video or some other proof that shows what you're claiming here?


Just hope that it is not SanDisk..
Click to expand...

And what's wrong with SanDisk?
 
This is the first I've heard of anyone caring about the speed of phone storage. Nothing on the phone is going to need the top of the line solid state tech. It certainly isn't going to be noticeable to the end user.
 
scaredpoet said:
I know the difference. In fact, are you sure you don't mean SLC?

You did not answer my question. Is there an actual, measurable performance drop in OS responsiveness on a mobile device due to the difference in write speed on TLC over MLC? Where are the figures that back that up?

----------



Do you have a video or some other proof that shows what you're claiming here?




And what's wrong with SanDisk?
Click to expand...

cheap
 
legioxi said:
This is the first I've heard of anyone caring about the speed of phone storage. Nothing on the phone is going to need the top of the line solid state tech. It certainly isn't going to be noticeable to the end user.
Click to expand...

That's my point, the OP has failed to produce any statistic to show any difference between different memory/storage manufacturers on the iPhone. If there is a difference we're probably looking at milliseconds and that isn't noticeable.
 
TroyBoy30 said:
actually sandisk is normally one of the best out there. they did have some cheap ultra cards that caused issues with gopro's though
Click to expand...

ITs definitely one of the more popular ones. I've never had any issues with the ones I've owned.
 
VoilaiPhone said:
Done by PhoneDoctor app

Capacity: 64GB
Factory : F2

my write speed is lower than other 64gb model by 140 mbps average.. guess my phone is lucked out?
Click to expand...

That app showed my speeds as 254MB write, 758MB read. My write is faster but my read is slower.

edit - just ran the test three times, second one 229/587 third one 271/633
 
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