I want get an Ati 5670, but only have a 300watt psu is this enough

I would like to get an ati 5670, but only hane a 300 watt psu. Its a standard psu which came with my hp pc.
Here are the some specs of my pc i know

Amd Athlon x3 440
3gb ddr3 ram

I'm currently using an ati 4550, but it's not that great even on low settings on some games...

If I can't run an ati 5670 with a 300watt psu, can anyone recommend a safer option?


Thanks

What PSU Do You Have? Make ?

The 5670 Uses 76W At Full Load And 16W At Idle.
http://www.tomshardware.com/review [...] 33-17.html

So Check The Ampere Rating Of Your 12V Railing! And Post Here!
Anyways, I Think The Card Will Run Just Fine..

Generally speaking, a 300w PSU should be able to handle a HD 5670 without any issues.

However, it is best if you provide your system specs and the specific make and model PSU you have.

Like I thought off of this page (http://www.amd.com/us/products/desktop/graphics/ati-radeon-hd-5000/ati-radeon-hd-5670-overview/Pages/ati-radeon-hd-5670-overview.aspx#3) here are the requirements:

Suggested ATI Radeon™ HD 5670 1GB GDDR5 System Requirements
■PCI Express® based PC is required with one X16 lane graphics slot available on the motherboard
■400 Watt or greater power supply recommended (500 Watt for ATI CrossFireX™ technology in dual mode)
■Certified power supplies are recommended. Refer to http://support.amd.com/us/certifie [...] sting.aspx
for a list of Certified products
■Minimum 1GB of system memory
■Installation software requires CD-ROM drive
■DVD playback requires DVD drive
■Blu-ray™ playback requires Blu-ray drive
■For an ATI CrossFireX™ system, a second ATI Radeon™ HD 5670 graphics card, an ATI CrossFireX Ready motherboard and one ATI CrossFireX Bridge Interconnect cable per graphics card (included) are required

NOTE: If the gold finger connectors have been removed from the 1GB board design, an ATI CrossFireX Bridge Interconnect cable is not required to enable ATI CrossFireX™ technology in dual mode.

Suggested ATI Radeon™ HD 5670 512MB GDDR5 System Requirements
■PCI Express® based PC is required with one X16 lane graphics slot available on the motherboard
■400 Watt or greater power supply recommended (500 Watt for ATI CrossFireX™ technology in dual mode)
■Certified power supplies are recommended. Refer to http://support.amd.com/us/certifie [...] sting.aspx
for a list of Certified products
■Minimum 1GB of system memory
■Installation software requires CD-ROM drive
■DVD playback requires DVD drive
■Blu-ray™ playback requires Blu-ray drive
■For an ATI CrossFireX™ system, a second ATI Radeon™ HD 5670 graphics card and an ATI CrossFireX Ready motherboard are required


So Go For a 400W or higher or you could have problems...

Like the OP? Seriously OP choice is yours, but manufacturer recommends 400w or higher. Thats what i would recommend if you came into my shop. IMHO.

I used To Run A 9500GT On A 250W PSU! And That Too Some Cheap One I Got With My OEM PC! No Probs For 2 Years, Untill I Upgraded To A New PSU Nd Card!

It All Depends On The Total Power Consumption Of The Other PC Parts, CPU,Mobo,HDD,DVD Burner Etc!
The 5670 is a very low power consumption card! As Tom's Says It Uses Only 76W At Full Load!



It Would Be A Lot Easier Giving Advice If The OP Posted His System Specs/PSU Make!
I Mean An Antec/Corsair Etc PSU's Are Under rated And Would Give More Than The 300W Specified!

A 300 watt should be fine. I have a computer with i660, 4 gigs of 1300 memory, 5670, HD, DVD, 500 watt PS.
At max load I am drawing at the outlet (no monitors) about 100 watts, at idle about 65 watts.
In my case max load means CPU load of about 65%, running a dvd along with Power DVD, Windows Media Player running a MP4, audio stream, internet video and virtualization with animation activities.
Assuming you are not loaded up with a number of other PCI slot cards etc. I think you are good to go.
You can always get a Kill A Watt power meter and check reality yourself (idle and load values).

+1 ^^^

Thats 19Amps On The +12V, Which Means 19 x 12 = 228W!(The +12V Railing is the one that supplies your Card Power)
Now Your 5670 Is Going To Use 76W At Load!(Say 90W Just In Case Of High Spikes)!

Now A 250W Delta Smps Is The One That I Had Too(Its Said Max 240W Output)! But Yet I Used To Run A 9500GT Which Uses 104W At Full Load On It!
Now Yours Is A 300W Delta, So More Power. Besides The 5670 Uses A Lot Lesser Power Than A 9500GT!

And ATi 4xxx Cards Use More Than 100W Power For Your Info!
The 5670 Uses Less Power And Will Definitely Work On Yours! I Mean Don't Buy A Card Which Performs Less Than 5670 And Still Consumes More Power!

Do remember with those videos
that they were recorded with FRAPS
so that the FPS is actually a little better without the recording software

Only way your going to hammer the nail is if you try it. These guys have very valid points, 64w TDW is a very low power consuming card. You should be fine, I just have the annoying habit of harping off Manufacturer's Recommendations...A+ Cert, FTW. But they are absolutely right, 19v x 12v = 228w total on your main line, your card is going to pull around 64 under normal conditions, and a very safe estimate is what our friend DJ said 90w so we can safely assume:

19*24=228-90(worse case scenario)=138w left for your system, plus what the other rails provide. So when you tak einto the fact the HDD and ODD run off serperate rails you should be okay...for me personally..little too low, but for someone on a budget go for it.

+1 to DJ for the easy eye breakdown