16 GB minimum (32 GB recommended for complex 4K projects). GPU: 2 GB of VRAM (4 GB+ recommended).
Even though the software is portable, the hardware requirements remain demanding due to the nature of video rendering. To run the 16.1.3.5 version effectively, your system should meet these benchmarks: Windows 10 (64-bit) versions 1703 or later. Adobe After Effects CC 2019 16.1.3.5 X64 Portable
It does not leave behind residual files or background processes like the Adobe Creative Cloud Desktop app. 16 GB minimum (32 GB recommended for complex 4K projects)
Portable versions often strip away non-essential background services, potentially saving CPU and RAM for the actual rendering process. System Requirements for X64 Portable Adobe After Effects CC 2019 16.1.3.5 X64 Portable