Adobe After Effects - Manual (Page 657)

Memory and storage | CC, CS6
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Memory (RAM) usage in 64-bit After Effects
Advantages of a 64-bit application and 64-bit address space
Memory & Multiprocessing preferences
Memory pool shared between After Effects, Premiere Pro, Encore, and Adobe Media Encoder
Memory & Multiprocessing Details dialog box
Memory (RAM) requirements for rendering
Purging memory (RAM)
Troubleshooting memory issues
Online resources about memory and multiprocessing
Storage requirements for output files
Caches: RAM cache, disk cache, and media cache
The global performance cache
Video: Global performance cache
Global RAM cache
Persistent disk cache
Video tutorial: How to Optimize After Effects for High Performance
Cache work area in background
Media cache
Faster graphics pipeline
If you're using After Effects CS5.5 or earlier, see Memory and Storage | CS5.5 and earlier.
Memory (RAM) usage in 64-bit After Effects
Advantages of a 64-bit application and 64-bit address space
The maximum amount of RAM that a 32-bit application can use is 4 GB, which is much less than the amount of RAM that can be installed in
modern computers and addressed by 64-bit operating systems. After Effects CS4 was a 32-bit application, and it was only able to use more than 4
GB of RAM by starting separate instances (processes) of the After Effects CS4 application to render multiple frames simultaneously. After Effects
is now a 64-bit application, so each process can use all of the RAM addressed by 64-bit Windows and Mac OS operating systems.
The ability of After Effects to use large amounts of RAM per process provides several advantages:
You can render much larger compositions—both for preview and for final output—with larger frame sizes and larger source files.
RAM previews can be much longer.
You can work with higher color bit depths without encountering memory limitations.
After Effects can cache more items, which reduce the frequency with which frames and components of frames are re-rendered.
Memory & Multiprocessing preferences
Set memory and multiprocessing preferences by choosing Edit > Preferences > Memory & Multiprocessing (Windows) or After Effects >
Preferences > Memory & Multiprocessing (Mac OS).
As you modify settings in the Memory & Multiprocessing dialog box, After Effects dynamically updates helpful text in the dialog box that reports
how it will allocate and use memory and CPUs.
The RAM Reserved For Other Applications preference is relevant whether or not Render Multiple Frames Simultaneously is selected. The settings
in the After Effects Multiprocessing category are relevant only if Render Multiple Frames Simultaneously is selected.
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