![]() ![]() Also true for an external 4tb SSD RAID (Mac OS Extended (Journaled)). Same APFS results for the internal drive–no change after the upgrade. Bad news! The APFS speeds running Ventura were the same as on Monterey. The ExFAT speeds were 25% slower than the APFS. Though far from scientific, I ran tests on my iMac Pro connected to a a 500gb external SSD in ExFAT and tested it with BlackMagic’s Disk Speed Test before reformatting it back to APFS (I had given it to a film house that couldn’t read APFS on their pc’s). Here is a PDF with the results of my tests. And for multicam work, this means that SSDs will support far fewer streams than before.īe sure to test your system speed before starting any major projects. For DIT file processing it means all your transfers will take a long longer. ![]() ![]() For single camera projects, this won’t make much difference. Ventura dramatically lowered SSD speeds compared to Monterey. NOTE: If the container is not showing, select View > All Devices from the top menu. When you do, all the traditional format options, along with a variety of new APFS flavors, become available. Instead, when using Disk Utility, first select the container (red arrow), not the volume inside it. If you select a volume in an APFS container, the only re-format option is APFS. Unlike past operating systems, APFS creates containers that store one or more volumes. Not to panic, it’s still there – but it moved. I got a shock when I went to reformat the Samsung drive in Ventura. If you select the wrong thing in Disk Utility, ExFAT and FAT32 are missing. However, for now, assume that all your SSD work is going to run slower or take longer. Whether these speed drops are intentional or a bug, I can’t tell. APFS volumes write almost 15% slower, while reads are 25% slower in Ventura, compared to Monterey. These differences are dramatic!Īs I mentioned at the beginning, the speed drop applies to more than just ExFAT. However, when the same disk is accessed in Ventura, read speeds drop 35%! Writes decrease by 25%. NOTE: All my tests, results and charts are available in a PDF at the end of this article.ĮxFAT in Monterey provides the fastest read speeds I measured. Then, since it seems that one or both of the AJA and BMD results are not accurate, I averaged the two and compared them. ![]() In all cases, the SSD drive was empty and newly formatted. I then updated my computer to macOS Ventura, reformatted the drive and ran five more tests checking the read and write speeds using ExFAT and APFS. I measured read and write speeds using both AJA System Test and Blackmagic Disk Speed Test by running five tests each. Using a 16″ MacBook Pro (with an M1 Pro chip) running first Monterey then Ventura, I formatted a 1 TB Samsung T-5 PCIe SSD using ExFAT and APFS in macOS Monterey. NOTE: This PDF contains the most recent test results. However, Ventura speeds are still significantly slower that macOS Monterey. ExFAT read speeds now match APFS read speeds, while APFS writes about 5% faster. While APFS speeds remain the same, ExFAT speeds have improved.ĮxFAT write speeds increased 17% and read speeds increased 14%. Recently, Apple released macOS Ventura 13.2.1, so I decided to revisit these tests to see if anything changed. My assumption is that these speed slowdowns also apply to NVMe SSDs, but I don’t have the hardware to test this currently. While these speed slow-downs won’t generally affect single camera editing, they can dramatically impact multicam edits and DIT transfers. Ventura 13.1 reads 25% slower than Monterey.Ventura 13.1 writes 14.7% slower than Monterey.When a PCIe SSD is formatted using APFS (the current Apple file system): Also, once a drive is formatted as APFS, the process of re-formatting a drive into ExFAT changed.Ventura 13.1 reads 35% slower than in Monterey!.Ventura 13.1 writes 25% slower than Monterey.When a PCIe SSD is formatted using ExFAT: So, I decided to test this to see if it’s true. In it they warned that macOS Ventura reads and writes ExFAT drives significantly more slowly than macOS Monterey. Just before I started my webinar last Wednesday, I read a warning on the blog about ExFAT. ![]()
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