I want to be a able to use photo shop as i have started the hobby of photography. As well, i need to edit 4k video for my Vlog and mini movies. usually about 45mins to 1hr and a half of 4k footage
Well, photoshop should be able to run quite well even with 8GB RAM for a hobbyist user, and video editing isn't as much memory intensive as it's processor/disk intensive - you're not going to store a full clip in RAM; the vast majority of it resides on disk and the software streams in the bits it needs to access dynamically.
The step up to 16 is like US$300 or so IIRC, and it's the top limit for the current 13" model. Whether that makes sense for you I can't say - like if you have cash burning in your pocket and nothing better to spend it on maybe. However most people are unlikely to cap out 8GB - I had 12GB in one of my older PCs (a socket 1366 Nehalem machine), and I had a hard time blowing even 50% of that. My PC after that had 16GB, and again, had a hard time using more than 50%. Chrome bugging and leaking memory like a sieve could do it (happened a couple times some years ago before they fixed that bug), or simply having super many tabs open, but otherwise...? No.
🙂
As for storage, I went with the 500GB SSD when I ordered my 2018 MBP as it was a decent amount of space without incurring too big a punch in the gut; the 1TB model was up $500 vs. the cost of the base configuration (250GB) - which is pretty crazy - and 2TB is just plain nuts. 4TB for the 15" model...well, did you just score big at the lottery or something? lol
External flash drives can be pretty damn fast these days, a USB 3.1 10Gbit/s drive is plenty friggin' fast, and certainly cheaper per gigabyte than what Apple charges for internal storage. Don't know pricing off-hand for thunderbolt drives; they're faster than any current flavor of USB, but also hella pricey from what I've seen. Speed will probably be overkill for your needs, but maybe you're made of money so maybe you'll want to go for it anyway what do I know.
😀 If you're like most people and feel pain in your wallet buying a Macbook Pro then you'll probably want to settle for the base configuraition 256GB Mac, and then expand storage externally with a USB drive when you start to feel cramped.
You put the important stuff on the internal drive; software that you use, and the project you're working on. Then you can move already finished stuff onto an external drive and archive it there. Also think of a backup solution. An external drive is NOT a backup, not if it is the only copy, and even if it is a 2nd copy that is still a bad backup solution... A good backup solution is off-site storage, so that say, a house fire (or theft) can't annihilate both copies of your stuff at once.
But that's a different topic really.
🙂