Need quick advice

[Badarang]

http://www.microcenter.com/product/433612/SuperNOVA_750_750W_Watt_Bronze_ATX_12V_Power_Supply

 

or

 

http://www.microcenter.com/product/446918/SuperNOVA_GS_650_Watt_80_Gold_Modular_ATX_12V_Power_Supply

 

I realize the later is gold vs the first is bronze but for the wattage and the price difference? What do guys think.

 

EDIT: Last piece of my build before I order. I will have a i5 4960k and a 970 and i do plan to oc. FYI

[DarkBlade2117]

The 650w is more reliable . The ratings are just power efficiency and the 650w was a GS meaning it was made by super flower. The second one was B1 which is from FSP

[Badarang]

The 650w is more reliable

I did see it higher on the PSU tier list but if its not a huge difference would the extra power in the first one be worth the "risk"?

[Badarang]

The 650w is more reliable . The ratings are just power efficiency and the 650w was a GS meaning it was made by super flower. The second one was B1 which is from FSP

Ok so the 650 then thanks alot!

[DarkBlade2117]

I did see it higher on the PSU tier list but if its not a huge difference would the extra power in the first one be worth the "risk"?

Why microcenter also? http://pcpartpicker.com/part/evga-power-supply-220g20750xr Here is a 750w which was made by SuperFlower. It's as reliable if not even more for the same price and $20 cheaper if you use the mail in rebate from NCIXUS

[Mindstab Thrull]

So basically:

 

EVGA SuperNOVA 750 bronze PSU

EVGA SuperNOVA GS 650 gold modular PSU

 

At 20/50/100% load, Bronze is 82/85/82% efficient, Gold is 87/90/87%.

If the wattage rating is the amount being fed to the components:

750W -> 150/375/750 W being fed = 183/441/915 W max from the wall

650W -> 130/325/650 W being fed = 149/361/747 W max from the wall

  (rounded to the nearest watt)

 

Which means that extra 100W capacity at Bronze full capacity is pulling an extra 167W from the wall. So the question really is: Do you need that extra 100W and will you anytime soon? If you don't, get the Gold. You waste less electricity, both in terms of the amount drawn from the wall and the amount that is dissipated as something other than electricity for your computer (outputting heat, for example). And if your home is charged individually for electricity (such as, you live in a house and get an electrical bill every so often), not having to pay for an extra 34/80/167 watts that the computer isn't actually using is kinda nice.