I know this is similar to a lot of post on here but I'm going to ask any way for some advice. I currently have a 2011 iMac whose video card is about to die, so I am looking for a new iMac. My wife mostly uses it for pics with some editing, safari and sometimes we do editing of 4k video clips. I think the radeon 580 model is prob overkill for what we use it for but what does everyone think of the radeon 570 vs the 575 models. Also, I've been reading posts and it seems like a lot of people are against the fusion drive and are recommending the ssds instead. any help would be appreciated. I gotta order a new one soon my old one prob won't last much longer. Thanks