Photoshop will run on these devices, however if you are a pro user you might find that there are limitations with some GPU heavy features. The 13-inch MacBook Air and Pro both have a maximum of 1.5GB GPU memory, which is below that recommended as a minimum. GPU memory is a little tricker to cater for so we have broken it down further for you below! Most Macs since 2012 support Metal, but you can check the Apple Support article here to confirm.