A couple weeks ago GSMArena reported that its tests showed that 32GB iPhone 7 and 7 Plus models had slower storage performance than 128GB and 256GB models. Today, Unbox Therapy's Lew Hilsenteger posted a video featuring several speed tests that confirm that 32GB iPhone 7 models have slower data write speeds than other configurations.


In the video, the free PerformanceTest Mobile [Direct Link] app is used to test the devices, a 32GB iPhone 7 and a 128GB iPhone 7. Both devices have similar read speeds, with the 32GB model reading at 656MB per second and the 128GB model reading at 856MB per second. However, there's a larger discrepancy in the model's write speeds. While the 128GB model writes at 341MB per second, the 32GB model writes at 42MB per second, nearly 8 times slower than the higher capacity model.

Hilsenteger then performed a real-world test more representative of what a user might encounter, using a MacBook and USB cable to transfer movies over to the two iPhone models. The 256GB model wrote the 4.2GB movie in 2 minutes and 34 seconds while the 32GB model wrote the same file in 3 minutes and 40 seconds.

Larger capacity SSDs often perform better than smaller capacity SSDs because its controller has access to more NAND flash memory chips, according to How-To Geek. Manufacturers have to place more NAND chips in higher capacity SSDs, and when they do they place them in parallel to each other. This means that the SSD controller has an easier time accessing more of the memory than a controller in a smaller capacity SSD, which wouldn't have the NAND chips in parallel to each other.

Related Forum: iPhone

Top Rated Comments

hybroid Avatar
64 months ago
This is very very normal for how solid storage works.
Score: 36 Votes (Like | Disagree)
Zoolevation Avatar
64 months ago
Now the iMac sales decline, Apple must put the pile of 5400 RPM HDD stock somewhere.
Score: 31 Votes (Like | Disagree)
Fancuku Avatar
64 months ago
This is very very normal for how solid storage works.
8 times slower is NOT normal.
Score: 23 Votes (Like | Disagree)
AngerDanger Avatar
64 months ago
To make the Unbox Therapy guy seem less annoying, imagine he got tanked before shooting the video and is trying his damnedest to seem sober.

It… it doesn't work, but it's a fun mental exercise.
Score: 17 Votes (Like | Disagree)
farewelwilliams Avatar
64 months ago
sick of unbox therapy.
Score: 17 Votes (Like | Disagree)
Soni Sanjay Avatar
64 months ago
Lmao at people immediately dismissing this guy for attacking Apple. And no, 8 times slower is NOT NORMAL. "How many people transfer 4GB movies regularly using iTunes?"

Excuses, pathetic from Apple.
Score: 16 Votes (Like | Disagree)

Top Stories

m1x mac mini screen feature

High-End 'M1X' Mac Mini With New Design and Additional Ports Expected to Launch in the 'Next Several Months'

Sunday August 22, 2021 5:59 am PDT by
Apple can be expected to launch an updated high-end Mac mini with a new design and a faster "M1X" Apple silicon processor in the "next several months," Bloomberg's Mark Gurman reports. In the latest publication of his Power On newsletter, Gurman writes that a new high-end Mac mini, which has previously been reported to feature a new design with additional ports, can be expected to replace...
mac scanner permission error

Apple Says Fix Planned for 'You Do Not Have Permission to Open the Application' Error When Using a Scanner on Mac

Saturday August 14, 2021 6:15 am PDT by
In a newly published support document on its website, Apple has acknowledged an error that some users may receive when they try to use a scanner with a Mac in the Image Capture app, Preview app, or the Printers & Scanners section of System Preferences. A screenshot of the error message from the HP Support Community When attempting to use a scanner with a Mac, Apple said users might get an...
macbookpro13large

macOS Big Sur Update Bricking Some Older MacBook Pro Models

Sunday November 15, 2020 5:33 am PST by
A large number of late 2013 and mid 2014 13-inch MacBook Pro owners are reporting that the macOS Big Sur update is bricking their machines. A MacRumors forum thread contains a significant number of users reporting the issue, and similar problems are being reported across Reddit and the Apple Support Communities, suggesting the problem is widespread. Users are reporting that during the...
original iphone

Phil Schiller Says iPhone Was 'Earth-Shattering' Ten Years Ago and Remains 'Unmatched' Today

Monday January 9, 2017 7:15 am PST by
To commemorate the tenth anniversary of the iPhone, Apple marketing chief Phil Schiller sat down with tech journalist Steven Levy for a wide-ranging interview about the smartphone's past, present, and future. The report first reflects upon the iPhone's lack of support for third-party apps in its first year. The argument inside Apple was split between whether the iPhone should be a closed...
m1 imac orange

New iMac Tidbits: Headphone Jack on Side, Ethernet Port on Power Adapter, Spatial Audio and WiFi 6 Support, No SD Card Slot

Wednesday April 21, 2021 6:38 am PDT by
Apple yesterday announced a completely redesigned 24-inch iMac with the M1 Apple silicon chip. The new iMac, the first major redesign of the Mac desktop computer since 2012, has several changes compared to the previous generation. In the aftermath of the event, a few new features and tidbits may have slipped under the radar, so we’ve compiled this list of some of the less-talked-about...
omg lightning cable comparison

Security Researcher Develops Lightning Cable With Hidden Chip to Steal Passwords

Thursday September 2, 2021 6:59 am PDT by
A normal-looking Lightning cable that can used to steal data like passwords and send it to a hacker has been developed, Vice reports. The "OMG Cable" compared to Apple's Lightning to USB cable. The "OMG Cable" works exactly like a normal Lightning to USB cable and can log keystrokes from connected Mac keyboards, iPads, and iPhones, and then send this data to a bad actor who could be over a...
Top Stories 75 Thumbnail

Top Stories: Last-Minute iPhone 13 Rumors, Apple Announces App Store Changes, and More

Saturday September 4, 2021 6:00 am PDT by
The finish line is in sight! Apple's annual iPhone event is likely just a week or so away and all eyes will be on the company as it unveils the next version of its most popular product line. With any luck, we'll also see the next-generation Apple Watch and perhaps even some new AirPods. Other news this week saw Apple making some more changes to its App Store policies in response to a...
General YouTube Feature 1

YouTube Premium and Music Surpass 50 Million Subscribers

Friday September 3, 2021 2:19 am PDT by
YouTube says it has passed 50 million subscribers for its Premium and Music subscriptions, making it the "fastest growing music subscription" service in the world, according to YouTube's global head of music, Lyor Cohen. YouTube says that it has more than 50 million paying subscribers collectively across YouTube Premium and YouTube Music. The Google-owned service says it attributes this...
iPhone 13 Dummy Thumbnail 2

Full iPhone 13 Feature Breakdown: Everything Rumors Say We Can Expect

Tuesday August 31, 2021 7:50 am PDT by
With the launch of Apple's iPhone 13 lineup believed to be just a few weeks away, we have compiled all of the coherent rumors from our coverage over the past year to build a full picture of the features and upgrades coming to the company's new smartphones. For clarity, only explicit improvements, upgrades, and new features compared to the iPhone 12 lineup are listed. It is worth noting that...
apple wallet drivers license

Apple Announces First U.S. States That Will Let You Add Your Driver's License to Your iPhone

Wednesday September 1, 2021 6:15 am PDT by
Apple today announced the first U.S. states that will be rolling out the ability for residents to add their driver's license or state ID to the Wallet app on the iPhone and Apple Watch. Arizona and Georgia will be the first states to support the feature, with Connecticut, Iowa, Kentucky, Maryland, Oklahoma, and Utah to follow, according to Apple. Apple said select TSA security checkpoints in ...