This is kind of a tricky question. The actual RAM usage highly depends on a scenario: the size of a project, plugins, modules used (like Docker or specific Quality Tools, for instance), etc. Also, Adobe Photoshop in parallel could be a significant resource consumer too.
This is kind of a tricky question.
The actual RAM usage highly depends on a scenario: the size of a project, plugins, modules used (like Docker or specific Quality Tools, for instance), etc. Also, Adobe Photoshop in parallel could be a significant resource consumer too.
If we stick to a documentation and address official PhpStorm system requirements, then 8GB is mentioned as a recommended value:
https://www.jetbrains.com/help/phpstorm/installation-guide.html#requirements
In any way, the life experience tells us that there is usually no "too much free memory" state :)