The choice of gaming inexpensive vidyuhi. rx470/560? nv1050/1650?

Question

Video cards

rx470+560. Not good for games?
Dx12 + pci v3 + 4k+Crossfire
It's promising, isn't it?
Are shaders 5/6 critical for games?
Or take nv 1650 with new
shaders fresh?
Or wait for new products in 2020 and buy in the same month? Then they definitely won’t have time to mine?
I just hope that because crossfire is not so demanding on models and rx 470 + 560 of low power, then on old mp they will also pull an old one and cool it easier?
Not to mention that the price of the red pleases. But on them the probability of mining is 99%? And the nv 1650 will have a lower wear probability, won't it?
I like
it with directx12
in conjunction +
4k +
up to 150 watts (it will work in old motherboards) +
pci v3
well, up to 10 thousand rubles.