Build Advice Should I get a Gen 5 PSU for an Am4 build?

[Katmoons]

I plan to buy an FSP Hydro GT Pro Gold 1000w for $133. However, I am confused about the Gen 5 version. Should I get the Gen 5 version for $6 more expensive or not? I am afraid that if I buy the Gen 5, I won't be able to use it in my Am4 build. On a side note, is it better to buy the FSP Hydro G Pro Gold 1000w for $150 or stick with the non-modular one?