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mightyrival
Participant
August 9, 2021
Answered

Best cache location/settings for AE on an M1 iMac?

  • August 9, 2021
  • 2 replies
  • 2788 views

I'm using AE on an M1 iMac, and all of my working files are on an external (WD MyBook) drive. 

 

For fastest rendering, should my cache files be located on the internal drive, or is the external equally fast? 

 

Thanks in advance for your expertise!

This topic has been closed for replies.
Correct answer Conrad_C

The Media Cache should be on storage that is fast, large, and has hundreds of GB of available space.

 

An M1 iMac has some of the fastest internal storage available, so usually the internal storage is a safe choice. But if the internal storage is running out of free space, that will cause performance problems and you would want to look at external storage for the Media Cache.

 

As far as I know, all WD MyBook external storage are hard drives, and possibly 5400RPM class hard drives. While that could fit the requirements of being large with a lot of free space, what disqualifies them completely is that a 5400RPM hard drive is some of the slowest storage you can get today, not suitable for an Adobe Media Cache.

 

The cheapest OK solution for external media cache storage is a SATA SSD connected with a USB 3, 5 gigabits per second cable to the iMac. This should be $100-150 and be around 5 times faster than a hard drive, but about 1/5 the speed of the storage inside an M1 iMac. Still, it can be an OK option if your After Effects projects aren’t too demanding.

 

The next higher option is a more compact NVMe SSD connected with a USB 3, 10Gb/sec cable to the iMac, up to 10 times faster than a hard drive or about half the speed of the storage inside an M1 iMac. $150-200 for 1TB.

 

The fastest but most expensive option is an NVMe SSD connected with a Thunderbolt 3 cable to the iMac. This option is up to 30 times faster than a hard drive, and closest in performance to the storage inside an M1 iMac. $250 and up for 1TB.

2 replies

Conrad_C
Community Expert
Conrad_CCommunity ExpertCorrect answer
Community Expert
August 9, 2021

The Media Cache should be on storage that is fast, large, and has hundreds of GB of available space.

 

An M1 iMac has some of the fastest internal storage available, so usually the internal storage is a safe choice. But if the internal storage is running out of free space, that will cause performance problems and you would want to look at external storage for the Media Cache.

 

As far as I know, all WD MyBook external storage are hard drives, and possibly 5400RPM class hard drives. While that could fit the requirements of being large with a lot of free space, what disqualifies them completely is that a 5400RPM hard drive is some of the slowest storage you can get today, not suitable for an Adobe Media Cache.

 

The cheapest OK solution for external media cache storage is a SATA SSD connected with a USB 3, 5 gigabits per second cable to the iMac. This should be $100-150 and be around 5 times faster than a hard drive, but about 1/5 the speed of the storage inside an M1 iMac. Still, it can be an OK option if your After Effects projects aren’t too demanding.

 

The next higher option is a more compact NVMe SSD connected with a USB 3, 10Gb/sec cable to the iMac, up to 10 times faster than a hard drive or about half the speed of the storage inside an M1 iMac. $150-200 for 1TB.

 

The fastest but most expensive option is an NVMe SSD connected with a Thunderbolt 3 cable to the iMac. This option is up to 30 times faster than a hard drive, and closest in performance to the storage inside an M1 iMac. $250 and up for 1TB.

mightyrival
Participant
August 11, 2021

Thanks for this advice! I had been using the WD drive as the media cache with my Macbook Pro and it was marginally better than the laptop's internal storage. I'll use the internal storage on the iMac and keep an eye on the available space. First test, it's rendering an AE file in 3 minutes instead of 15 minutes. Huge improvement.

Jose Panadero
Community Expert
Community Expert
August 11, 2021

It is not mandatory to keep an eye for the available space on disk. You can set the storage limit for media cache in Edit > Preferences > Media & Disk Cache. As Conrad said, it would be great to have at least a 30% a disk avalability to avoid performance problems using any other app or even the macOS.

 

Also, it is a good idea to purge the cache sometimes to delete old cache files or cache files for any other project stored in that folder.

Jose Panadero
Community Expert
Community Expert
August 9, 2021

Internal hard drive on your iMac is a SSD drive so you will have a faster previews than using external HD.