Sign in with
Sign up | Sign in
Your question

+12v 16A enough for hd5670?

Tags:
  • Graphics Cards
  • HD
  • Radeon
  • Graphics
  • Product
Last response: in Graphics & Displays
Share
April 17, 2011 3:52:08 AM

Hi all,

I am recently dismayed to learn that my 400W PSU (16A on the +12V rail) isn't powerful enough for a GTS 250 or a Radeon HD 5770, so I have no choice but to pick either a 9800 GT or a Radeon HD 5670. However, due to the scarcity of info on the vendors' websites, I am not even sure of the power requirements of these two cards.

(1) Although I read on GigaByte's website that 400W is enough for 9800 GT, I don't know if 16A on +12V is enough.

(2) ATi's website says that 400W is enough for Radeon HD 5670, but again I don't know if 16A on +12V is enough.

please someone help me out...

More about : 12v 16a hd5670

a c 214 U Graphics card
April 17, 2011 4:21:52 AM

You need roughly around 24amps on the 12/v rail to run a 5770The 9800GT usues jsut about the same amount of power as the 5770.I would think you have enough for the 5670 but I want to be sure.

Please list your full system specs.(CPU,RAM,Mobo,etc.)

When you looks at the sticker on your PSU what does it say exactly under the 12/v rail?

m
0
l
a c 177 U Graphics card
April 17, 2011 8:40:20 AM

i would expect a 400w psu to have at least 20-25a on the 12v rail. It sounds like a very cheap crappy psu. you should upgrade it. get an antec earthwatts 380w. it has 2x 17a 12v rails and will be able to support up to a 6850 or gtx460.
m
0
l
Related resources
a b U Graphics card
April 17, 2011 8:50:13 AM

probably that PSU will be fine with 5670, but not 9800GT, get something like Antec Earthwatts/ Corsair/ OCZ
m
0
l
a b U Graphics card
April 17, 2011 12:25:58 PM

A 5670 needs 4 to 5 amps, so you should be OK with a 16 amp 12 volt rail. You will, however, have no reserve.
m
0
l
April 24, 2011 3:11:49 AM

hmmm i rounded off to hd 5670... is that a gud choice over gt9800??? and also give me some options for psu...
m
0
l
a c 214 U Graphics card
April 24, 2011 3:29:51 AM

The 5670 and 9800GT perform almost exactly the same.
What's your budget for the PSU?
m
0
l
April 24, 2011 3:32:19 AM

i can afford around 6k indian rupees
m
0
l
a c 214 U Graphics card
April 24, 2011 3:37:09 AM

Something like this is what you should look for.Although I have a feeling it will be drasticly more expensive in your country.But if it is the same price then I would put the extra money towards a better GPU.$20 more and you can get a 5770.

http://www.newegg.com/Product/Product.aspx?Item=N82E168...
m
0
l
May 17, 2011 9:26:57 AM

I've been using ASUS Radeon HD 5670 for a long time on a 450w Tech-com PSU which delivers a meagre 10 amps on the 12V rail. I've played games on full 1080p resolution with max possible settings and never had an issue. So I think you can go ahead with Radeon 5670 since it doesn't need external power source.

Although I am a bit curious about how much is the difference in power and amps requirement between a Radeon 5670 and 5750?
m
0
l
!