EA may have released the minimum and recommended specs but until properly tweaked and benchmarked it is never clear how much power BF4 wants.  Thankfully TechSpot has gone through all of that work for you, testing over 2 dozen video cards and their performance in BF4 at three different resolutions.  They didn't parse the performance by every single graphics option switching between enabled and disabled but the benchmarks are informative enough to give you an idea where to start.

"With roots that stretch back more than a decade and enough fans to justify new content every year, Battlefield is among the handful of franchises that needs no introduction around here. Even if you hate EA's approach modern military madness, you can typically expect Battlefield's graphics to raise the bar."

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