Can my thermaltake 450watt handle this?

I am getting a new dual core Video card and i don't know if my power supply can handle it and the other hardware......

right now i am running.......
the computer is a Compaq SR5123WM
Thermaltake 450WATT its afew years old but has never let me down)
SATA Hard Drive
SATA DVD-RW
4gigs ddr2
AMD Dual Core processor
ECS MCP61PM-HM (Nettle2)

and the video card i am getting is this
ati radeon HD 3870 X2
http://usa.asus.com/product.aspx?P_ID=rBGpGq2aU4ZHq5Iu

 

Hello,
You can use the Thermltake Power Supply Calculator to find the recommended wattage.

 

It says 522W

Do you think this power supply will work? I been useing the same 450watt Thermaltake for 5years and no problem so i want to keep with Thermaltake...

it says PCIE connectors 2 x 6-Pin, 2 x 6+2-Pin

http://www.newegg.com/Product/Product.aspx?Item=N82E16817153116

 

That power supply should work. Maybe somebody here could say if your 450 watt power supply would work or maybe recommend something else. Just be sure the power supply will fit in your case. The 12v rail alone puts out 528 watts (Watts = Amps x Volts) so I think that should be adequate for your needs.

 

Well i ordered a Power supply. Let me know what you think...... I like Termaltake but i also like Raidmax....

http://www.newegg.com/Product/Product.aspx?Item=N82E16817152035

 

So, you ordered the Raidmax? That power supply has the advantage of 2 +12V rails instead of the Thermaltake which had a single rail.

 

Yep i ordered the Raidmax rather than the brand i been using but i know Raidmax is pretty good on the things they make,