Upgrading power requirements

[CaptainRagu]

Hello! Im thinking about upgrading my rig to give it a bit more rendering/gaming power and am looking for some reassurment that my psu can handle it.

 

Right now I have:

 

i5-4690k

Z97 motherboard

GTX 770

2x4 gb DDR3 ram

1TB HD

2 SSD

3 fans

2 monitors

gaming mouse and led keyboard

webcam

microphone

650w gold psu

 

Im considering adding another GTX 770 by SLI and another 2x4 gb of ram.

 

Ive used a couple online calculators which assure me that ~640 is the optimal psu, and at full load I would draw 400-500, but im wondering if anyone here has some experience with a similar set up and what you would suggest. Id rather not buy another PSU

[IP man]

http://www.extreme.outervision.com/psucalculatorlite.jsp

 

maybe this will help?

[CaptainRagu]

http://www.extreme.outervision.com/psucalculatorlite.jsp

 

maybe this will help?

 

Yes this was one of the two calculators I used.

It told me Minimum 542W optimal 592W, so I think im ok but i figured with so many people here im hoping someone has a similar config they could share their PSU specs from.

[IP man]

Yes this was one of the two calculators I used.

It told me Minimum 542W optimal 592W, so I think im ok but i figured with so many people here im hoping someone has a similar config they could share their PSU specs from.

i have almost similar as you, (see my profile) and i use 500watt BRONZE. so youre good.

 

About that SLI i dont know