How many watts do I need in my PSU?

[Siggyy]

Hello, I'm building a budget gaming computer and I have picked out most of the parts except for the PSU. Can anyone tell me how many watts I would typically need?

Specs:
Amd Phenom II x4 965 BE
Radeon HD 6750
G.SKILL Ripjaws Series 8GB (2 x 4GB) 240-Pin DDR3
Sony DVD Drive
ECS A885GM-A2 (V1.1) AM3 AMD 880G SATA 6Gb/s ATX AMD Motherboard
1TB Seagate Barracuda 7200RPM 6GB/S

 

[amuffin]

A 400W power supply will run that system easily.

Here's a good power supply that's on sale!

http://www.newegg.com/Product/Product.aspx?Item=N82E16817139026&Tpk=cx430

 

[mocchan]

**EDIT**
muffin's PSU is a better value.

Something like this would be more than enough for your rig

However, I feel there can be some improvements made to your parts list, what is your budget and country?

 

[Siggyy]

**EDIT**
muffin's PSU is a better value.

Something like this would be more than enough for your rig

However, I feel there can be some improvements made to your parts list, what is your budget and country?

Well, i'm a complete noob at building computers, and this is my first one.
Budget is around 300-450 dollars... But all these parts together already add up to about 400 dollars...

Also, I'm in the US

 

[amuffin]

What is this for?

 

[Ragnarock]

On the amd website it says 450 watt minimum but take that with a grain of salt people always run cards lower than the minimum just have to make sure its a decent brand.

 

[amuffin]

^^

That card draws very little. Around 100W at most.

 

[Siggyy]

Now I'm debating wheter I should get a cheaper quad core processor by AMD.
Like the A8-XXXXK or maybe even the A6-XXXXK

 

[Siggyy]

Best answer selected by Siggyy.

 

[amuffin]

You could get away with a Pentium G series CPU.