The general populace wants their games to be high in graphic activity. I've seen it right here in the forum players wanting more graphics added to Seaport. To accomplish this, large amounts of processing ram is required.
The latest middle of the road standard, Devices have 4GB of processing ram. But this comes at a price, these devices cost more. My device is a little higher at 6GB of ram, the highest I've seen at the time I purchased it.
A friend of mine thinks I was crazy for spending so much. But he doesn't use his device for much more than a phone, and he purchased one with only 1.5GB at a 1/2 the price.
To be honest, I'm surprised seaport will run on a device with less than 2GB of ram. Or run efficiently on anything less than 3GB.
..... and why cant Devs put it down to 500MB? ....
In today's "Digital World" where consumers want to see Spectacular, are you Serious??
Seaport may actually be using about 500MB (im guessing). However when a device boots up, it pre-loads an awful lot of stuff. If you're really good at managing what loads and what doesn't, and clear from memory things you cancel. Seaport may have a better chance at loading. Once it's loaded go to settings and turn off things like anti-aliasing and clouds.
One thing you can't control, is how much Room the operating system takes up. When I boot up my device over a gigabyte of ram is consume between the operating system and all the stuff that pre loads. That's right, over a "gigabyte" and I haven't started any apps yet.