Judging from your hardware, the CPU looks kinda weak for Fallout 4. As for the RAM, 8 GB is fine and it fits with the minimal requirements (both with recommended requirements as well) so there's no problem with that. And for this GPU, I think it is good at least however I'm not entirely sure though.
As GeoB99 stated, your CPU is little bit weak so you will may run into some problems when playing Fallout 4. Your RAM is enough to play Fallout 4. I don't know about dual GPU, but for your GPUs, I think both of them are really weak so you can't play Fallout 4 smoothly.