How much RAM do I need for Lightroom raw editing?

16GB is the floor for Lightroom raw editing — it massively cuts down lag compared to 8GB when working with large raw files. With 8GB, your computer will swap to disk and cause spinning beachballs. For high-megapixel cameras like the Sony A7R IV or Nikon Z7, 16GB is the absolute minimum; 32GB is better if you run other apps.