Pushing it on a 750W?

[iwrox]

Hey there,

I am currently using a Seasonic G750 (62a on the 12v) PSU to run the following;

4770k @ 4.2ghz using 1.25v (hoping for more)
8GB of PC2400 @ 1.65v
2 x 290x's currently at 1100/1350
Watercooling pump and 7 fans
2 SSDS, and 1 Mechanical HDD.

Am I pushing it when at full load? What should my sweet spot be considering I would like to get more out of both the CPU and GPUs? The Superflowers on OCUK have caught my eye, but unsure as to what I need (850w v 1000w)

What say you OCUK?

Cheers.

 

[RJC]

Looking at the review below which is using the Sapphire Vapor X 8gb versions and a similar setup to yours and they get 627w whilst the gpu's are under load.

http://www.kitguru.net/components/graphic-cards/zardon/sapphire-r9-290x-vapor-x-8gb-cf-review/18/

 

[iwrox]

So add some WC and overclocking into the mix and an 850w psu seems like a good idea just to add a bit of headroom Cheers.