It also depends on what resolution you're playing at. If you're playing at 1080p, then medium is the highest you'll get (probably low though). If you're playing at 1600x900 or lower, I think you'll be able to play at medium.
I doubt it. It will probably run, but very slowly. Start at low and increase settings until you start getting uncomfortable.
I have a 7850 that could run the Beta on high with a few drops, but the 7850 is over twice the power of the 7750.
Put it this way. It'll run on high the same way a person with a broken ankle will run.
It also depends on what resolution you're playing at. If you're playing at 1080p, then medium is the highest you'll get (probably low though). If you're playing at 1600x900 or lower, I think you'll be able to play at medium.
no, while 7750 is an OK card, it is too slow to run bf4 on high. it will play, just lower the settings. medium is not bad at all.
if you want high, get a better gpu