64GB+. Essential for handling massive point clouds or global-scale raster datasets.
Not all QGIS users work the same way. Here are specific scenarios that alter the hardware calculus. qgis hardware requirements
NVMe SSD only. 512GB minimum. 1TB recommended if you store local raster datasets. supporting spatial indexes
Your OS influences QGIS performance significantly. qgis hardware requirements
This is the single biggest bottleneck for most users. QGIS constantly reads project files, supporting spatial indexes, and temporary cache.
The official QGIS documentation suggests a minimum of 4 GB of RAM. In reality, 4 GB is barely enough to run the operating system and QGIS simultaneously without stuttering.