Hi guys, i have some questions on power supply.

My current spec:

I3-2100
Asrock h61 mobo
Kvr 4gb ram x2 = 8gb
Dvd drive
2x sata hdd 320gb each
Fsp hexa 500w
4fans running

What card is the max i can go for? Was searching for r9 280x used unit, but somehow i notice that r9 280x required pretty heavy power, can my fsp hexa 500w support it?

Which card should be the max (reasonably safe lah haha) that my psu can support? R9 280? How about nvidia card?

Edit: Did a quick search in this topic and i found out that fsp hexa 500w is not recommended to run r9 280x. Even if it runs it will stress the psu. So 280x is out now. What other choices do i have? Im seeking for used unit. So can be some mid high end cards. Using it for 1080p gaming.

P.s. no budget to change psu yet, so aiming cards that my psu can support.