A few threads I read here earlier in the week related to less than high-end cards. The recent questions were for cards that were to be bought to 'get by' until moving to a something faster later in the year.
A couple of things struck me across the threads.
The first was that minimum frame rates weren't referred to.
If using a quad core CPU (as I am about to with an i5-2500K), is there not an advantage with cards of a better spec when it comes to maintaining more consistent frame rates?
That takes me to cost. Unless I'd missed something in every thread, the second point was the option of second-hand cards.
I read through the forum to seek related experience this week as I'm looking at GTX 670 cards and above for my own build. Especially below the GTX 970 tier, they appear to compare well with current-gen cards. I've gained the impression that the cards I'm considering are great at 1080p or below, so it seemed odd that they didn't feature in replies. Considering the spec and costs of new cards, even as the interim purchase that some forum members had in mind, aren't Nvidia 600 and 700-series cards or the AMD equivalents worth considering as well?