That's definitely good enough to run Photoshop, I've run it on much worse hardware. If you don't do anything super crazy, it should work fine. But exporting hundreds of RAW images, for example, might be pretty slow.
EDIT: As @maflynn points out, upgrading to 32 GB might be beneficial, but does that option even exist?
Thank you, Is WD Passport the portable drive to use to have files from both mac and windows? I am not sure how to make it so that I can back up from both. Anyone know?
Thank you, Is WD Passport the portable drive to use to have files from both mac and windows? I am not sure how to make it so that I can back up from both. Anyone know?