Tfx Power Supply Can You Run A Dual Core Processor On A 250 Watts Power Supply?

Can you run a Dual Core Processor on a 250 Watts Power supply? - tfx power supply

Can a dual-core for an offer of 250 watts?
Currently I am a single-core Celeron, 2 GB Ram, 1Hard Drive160Gb, DVD / RW drive and integrated graphics.

I perform an upgrade to an Intel Dual Core 3 GHz, 4 GB RAM, 500 GB Hard Edge Graphics Card 256MB PCI-E

All this in one case, TFX, the problem is I find a great power suppy for the cases TFX. Would it can on a 250-watt PS?