Turns out 4GB aren't enough even for a 1 year old game in 1080p

soon dude, any oldfags here remember gta 4 when it comes out?
bunch of retard here having issues with 1gb vram less toppest kek happened here.

You mean the "everything else" that makes next to no difference in less VRAM hungry games? The nitro (8GB) is literally slower than the Red Devil (4GB) in Anno. It's the additional 4GB that boost the Nitro so far above the other 470 cards in BO3. The memory clock probably has an effect, but as you can see with the Red Devil, its effect is not even close to making a difference of 30%.
Very little amount of people would actually be willing to invest into a 1080 as it is I guess. If prices were 10% higher, but with 12GB VRAM i doubt that enthusiast would be sad about it.