![]() That's disappointing, but there are some solutions. If these tests are accurate, the M1 Mac can't achieve the full speed that should be possible when using USB 3.1 Gen 2. ![]() If any of these fall below the rated standard, it will affect the results. The factors that must be considered are the computer used for testing, the software used for testing, the ports being connected to, the cables used for the connection, and, finally, the external drives. Various combinations of components must be checked in sequence to get a clear picture, and it seems like Oakley did a thorough job, calling in some help for verification from two other people. Getting to the bottom of storage slowdowns is not an easy task. USB 3.2 has a maximum transfer rate of 20 gigabits-per-second but only 10 gigabits-per-second. The good news is that USB 3.2 storage offered consistent 10 gigabits-per-second transfers even though Apple didn't claim compatibility with this standard. In some cases, five gigabits-per-second was shown as the maximum, half of the rate expected. ![]() While all M1 systems should support USB 3.1 Gen 2 at 10 gigabits-per-second, there appears to be some issue preventing the best bandwidth possible. Recent testing by artist and Mac developer Howard Oakley of Eclectic Light Company revealed Thunderbolt port transfer speeds that were much slower than expected. That's when performance that doesn't meet claims can cause a problem. In some cases, the computer must simultaneously access multiple streams of this high-bandwidth content for transitions and picture-in-picture effects. While backup storage doesn't have to be fast, some users require the highest transfer rates possible to keep up with demanding tasks such as editing video at 4K or 8K resolution. Related: What Ports Does The Mac Studio Have? Thunderbolt, SD Card Reader, And More ![]() One petabyte is equal to a thousand terabytes which would cost hundreds of millions of dollars if stored on solid-state drives. For example, some companies use magnetic tape drives to store petabytes of data safely offline at a relatively low cost. ![]() In some cases, very slow media is used when there's a need to store vast amounts of information. In this case, a Mac computer's Time Machine backup doesn't need to be fast. However, the slower speeds could have a negative impact on professional video editors or anyone that relies on super-fast external storage for daily use.Įxternal storage is often used to back up data if something goes wrong with the primary drive or the operating system becomes infected with a computer virus. The good news is that this doesn't affect the internal drive, which is typically the most used storage and, in some cases, the only storage some users access. Recent testing indicates that the M1 Mac Thunderbolt ports’ transfer speeds aren’t as fast as advertised by Apple. ![]()
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January 2023
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