My current psu is a
625W Enermax Pro82+ 80+ Bronze got it used in 2013 pc is running ok but with my current system but it think it's getting old i thought about getting a seasonic
X-Series KM3 80 Plus Gold or a G-Series GM 80 Plus Gold both 650watt I used this calculator http://www.enermax.outervision.com/PSUEngine 543W so a 550w psu is pretty hard on the edge so a 650w psu is the more safe option
little note when I checked gpu-z sometimes while playing it said alot of times VRel limited by reliability voltage
my system
Intel core i5 4590 3,7ghz
be quiet! Shadow Rock
NANYA Elixir 8gb dddr3 1333mhz
Asus H97-Pro gamer ATX LGA1150 Motherboard
Samsung 850 Pro 128gb
Crucial MX100 256gb
WD green 2TB
GeForce GTX 980 Ti Superclocked + hybrid kit
Corsair 400R ATX Mid Tower Case
3x Enermax T.B. Silence 120mm
2x be quiet! Pure Wings 2 140mm