Photoshop = 1GiB needed. No messing.
If you're a pro Photoshop user, you might want to be looking at anywhere between 2 and 8GiB depending on exactly how many high resolution 48 bit colour photographs you are compositing.
If you're a pro Photoshop user, you might want to be looking at anywhere between 2 and 8GiB depending on exactly how many high resolution 48 bit colour photographs you are compositing.