Need help I get lag spikes don't know if it's normal

Wsasx2

Honorable
Jan 18, 2014
315
0
10,780
So I've been playing AC unity and AC black flag both games occasionally give me lag spikes or hiccups whatever the word for this is. I get from 60 to 57 randomly however it is playable because it doesn't happen every second. Bf4 hardly ever gives me lag spikes and other games as well.
My specs our 16gb ram
Two gtx 980s
I7 4790k
Maximus vii mobo