need help calculating power needs

[gbux512]

So Im currently running the following setup with (i think) no problems,

ivybridge i5 3570k
ASUS P8Z77-V DELUXE LGA 1155 Intel MB
evga 580 HD VGA
16 gigs ram
soundblasder titanium sound card
1 terabyte 6gb/s hard drive
2 200mm fans
2 120mm fans

2 650 corsair PSU
I want to get an nvidea 670, do i have enough power to swap out VGAs?

Thanks in advance, and lmk if i didnt give enough info

 

[OhSnapWord]

eXtreme Power Supply Calculator

That should help you.

 

[gbux512]

I did everything aNd its coming up with 375. I mean that can't be right....

 

[ssc456]

I did everything aNd its coming up with 375. I mean that can't be right....

I wouldn't have thought It was far off!!

PSUs have to be the most overkill thing that PC builders put into their PCs.
I've seen guys on here look at order 1,000 Watt PSUs for systems that probably run about 300 Watts.

That website won't be entirely accurate but give it a margin of 100 Watts and I would be confident with it.

you'd be surprised at how little your computer actually uses.

Almost any machine (barring dual CPUs + Dual GPUs) can run on a decent efficient 650 Watt PSU nowa days.