power supply

[airbus]

Do I need a 1000 watt power suppy for PC? Or can I have a 850 watt? My specs are listed below:

CPU: Intel Core i7-3970X @ 3.5GHz Hexa Core

GPU: NVIDIA GeForce GTX 780Ti 2-Way SLI @ 875MHz 3GB

MOTHER BOARD: Asus Rampage MOTHER IV Extreme ROG

RAM: Corsair Dominator Platinum 16GB (4x4) 1866MHz

SSD: Corsair Neuron GTX 240GB

HDD: Western Digital Black 3TB

CASE: Corsair Obsidian 750D

OPTICAL DRIVE: Asus BC-12D1ST

SOUND CARD: Asus Xonar Phoebus

NETWORK CARD: Intel E10G42BT @ 10Gbps PCI Express

WATER COOLING: Corsair Hydro H110 280mm (2x 140mm)

AIR COOLING: 2 Corsair SP120 and 5 Corsair AF140

MONITOR: Asus MX239H 23”

MOUSE: Razer Ouroboros

KEYBOARD: Razer Blackwidow Ultimate

SOUND: Sennheiser HD 558

OS: Windows 7 Ultimate 64-bit

[sonarctica]

quality 850W will do just fine

[SAV1OUR]

you could even go with 750w you dont NEED 1000w

[Elven]

I got 2 GTX 780's currently running on a 750 PSU. Most i've seen it pull is 720 watts and I've not overclocked them coz I know it'll prob blow up, if I do 

[jameshumphries47]

800W would be perfect I guess

[Joshua Ondangan]

hey if you can afford a 1000W 80plus platinum powersupply and not regret it why not ?

 

and if you can go to the platinum 1600mhz cl9 

 

for me a 1600mhz to 1866mhz feels like not a big jump

 

either go 2133 or 1600 just my opinion. but pretty much a better bang for your buck would be the 1600mhz. and the extra cash might go to the 4930k if it's available or something. or the 4960x.

 

the asus x79 e-ws is awesome too.

 

anyways something like a corsair ax860i or the seasonic 1000w platinum is something I'd recommend if you ever want to buy a 1000w psu.

[Kirah]

I have a pretty similar build and i'm using a corsair AX860i.

And my rig wont even consume enough power to make the fan turn on.

 

Unless im benching or in a demanding game.

Heck even in most games the fan wont go above 500RPM or so.

The highest power draw i have seen during benching is around 700W

 

Granted that's kind of the reason why i went with that PSU in the first place.

Other then the fact that my 550W old PSU couldn't handle my new rig.

 

But but yea the psu is still over kill but its silent so i don't really mind the extra cost