Computer upgrade idea/question

[Jaredstanley5]

Last year I had the goal of spending around 400 for a budget gaming pc that could compete with the ps4 (some used some new parts)

(I mainly play triple A titles and have no problem compromising frame rate for visuals)

I thought I did pretty well

Amd x4 860k (stock cooler)

Gigabyte fm2 a78m micro atx motherboard 

 

EVGA 750w bronze semi modular psu evga nex750b

1 8gb stick of crucial ram

1tb wd blue

120gb sata 3 ssd

xfx r9 380 2gb

thermaltake versa n21 case

Monitor -25 inch 1080p ultrawide for non gaming and a 1080p samsung 32 inch for gaming

 

So my question is while knowing that the 200 and 300 series of amd gpus are crossfire compatible would it make more sense to buy an r9 285 mini itx card (8pins) and crossfire it with the 380 (12pins) (pc partpicker says my psu does not have enough pins for 2 12 pin cards)

So the options would be add an 8 pin r9 285 off ebay to my system (if that would even work) or something else I am not thinking of that would give a decent performance upgrade for around 100$

I am open to any comments or suggestions.

 

[Pandry]

I'm not really into the crossfire technology nor AMD, but, as far as I know, when 2 different AMD graphics cards work together, the powerful one "downgrade" itself to reach the level of the less powerful one, so, in my opinion, you should not buy a different card.

I saw some pretty decent video on the net about an R9 380 crossfire, like this one