It absolutely does depend and "several new" might be "thousands new". It literally depends on what you're doing.
> The underlying engine that executes opcodes is the same.
Not exactly. FrankenPHP uses a ZTS build of PHP, which includes thread-support. Meaning you can actually spawn real-life threads in your PHP code with just a bit of work.
I've actually been working on a Parallel drop-in replacement that uses FrankenPHP/go instead of maintaining its own thread system.
> The underlying engine that executes opcodes is the same.
Not exactly. FrankenPHP uses a ZTS build of PHP, which includes thread-support. Meaning you can actually spawn real-life threads in your PHP code with just a bit of work.
I've actually been working on a Parallel drop-in replacement that uses FrankenPHP/go instead of maintaining its own thread system.