Is a 620W PSU Enough for a GTX 780

[Fros78]

My PSU is kinda shitty brand. Its Inter Tech Argus 620W. It says it has a 2 12v Rails with 30A Each capable of supporting up to 570W of power. Currently im running an R9 270X on it no problems. But i think a 780 is not gonna be stable on this thing. Plus it has only one 8pin connector and im gonna be running the 6pin from a molex which still is dumb and i know i can fry my card but im gonna risk it but before i buy anything i want to ask you guys if you can help me ?
Mobo:Asus M4A78LT-M
CPU:AMD Phenom X4 955 BE
GPU:R9 270X
RAM:8GB 1600MHz
OS:Windows 10
HDD:WD Blue 1TB 7200RPM
PSU:Inter Tech Argus 620W

 

[sizzling]

The problem with PSU's is wattage on its own is fairly meaningless, the quality of the unit is equally or more important. While technically its spec is enough I don't know the brand which instantly makes me suspicious of its quality. I would never run a low quality PSU whatever its rating. Maybe someone else can vouch for the quality of this unit?

Also a 955 is seriously going to hold back a 780

 

[geofelt]

A GTX780 needs both a 6 and a 8 pin connector and 575w.
http://www.realhardtechx.com/index_archivos/Page362.htm
If a psu does not have sufficient pcie power connectors, it likely does not have the amps necessary to drive them even with molex adapters.
I would replace the psu.
Your danger is not that it will have insufficient power, but that if the psu should fail under load it will damage other parts.
A Cheap psu will not include the necessary protective circuitry.

 

[4745454b]

To start the label lies. 12V * 30A = 360W, and two of those should be 720W. Which is impossible for a "620W" PSU. You said it had a combined 570W, which at 12V gives you an odd 47.5A. You don't normally see half amps on PSUs so I don't know what the real output is. If it really has only a single 8pin plug and no 6pin plugs that's even odder. My old Antec 500W had two 6 pin plugs. My new 450W PSU has dual 6+2 plugs, and yours doesn't even have that so guess what your PSU can really handle?

I honestly wouldn't use that PSU. You don't have to buy the best top of the line PSU, but a fire hazard like that shouldn't be used. Ever. Good units can be found for $30-50 on newegg. If you really want to get a 780 (? why, newer and better cards are now out.) I wouldn't hook it up to that PSU. Yes, ever.

 

[Fros78]

To start the label lies. 12V * 30A = 360W, and two of those should be 720W. Which is impossible for a "620W" PSU. You said it had a combined 570W, which at 12V gives you an odd 47.5A. You don't normally see half amps on PSUs so I don't know what the real output is. If it really has only a single 8pin plug and no 6pin plugs that's even odder. My old Antec 500W had two 6 pin plugs. My new 450W PSU has dual 6+2 plugs, and yours doesn't even have that so guess what your PSU can really handle?

I honestly wouldn't use that PSU. You don't have to buy the best top of the line PSU, but a fire hazard like that shouldn't be used. Ever. Good units can be found for $30-50 on newegg. If you really want to get a 780 (? why, newer and better cards are now out.) I wouldn't hook it up to that PSU. Yes, ever.

Ok is the EVGA 600B Good or i need to look for something better and im getting a 780 because the 970 is not in my price range plus im buying second hand which makes it a lot cheaper its 140$ right now for me which is a very good deal judging by me and the card is enoguh to run any game right now

 

[4745454b]

While not the best in terms of quality or performance, the 600b should serve you well. I was assuming new and USA, if buying used or outside USA that changes how good a deal it is. You are right, 780 is a good card, it's just getting old.