How much power do i need?

[leekemp]

Hi guys,

i'm currently running:

Amd 5600x2 (3.108 Ghz)
Huge typhoon
1000gb HDD (samsung F1)
Asus M2N32 SLI deluxe Motherboard
4 GB Geil 6400 (800Htz)
2X BFG 8800GT OC2 (fitted with 2x Akasa AK-VC03-BLUV Vortexx NEO VGA Cooler)
Razer IAS Barracuda AC-1 Gaming 7.1 Sound Card
**Cooler Master M850 power supply**
Windows Vista 64 Bit

I'm thinking of upgrading my SLI set-up,
is there anyway of finding out how much power i would need for:

2x 260gtx?

or

2x 280gtx?

thanks

 

[CaNNoN_1981]

Prob about 850W to be safe.