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How much power do these cards need=4870x2

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  • NAS / RAID
  • Power
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Last response: in Graphics & Displays
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October 17, 2008 6:01:43 AM

I saw the website says they need 650 watt for one card and 1 kilowatt for 2 but that seems modest to me thinking of everything else that could be in your pc. will this PSU handle 2 of these cards and a raid setup?

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

The product has 80 amps but the card doesn't specify as to how much amperage it would require.

More about : power cards 4870x2

a b U Graphics card
October 17, 2008 12:21:21 PM

Draiken said:
I saw the website says they need 650 watt for one card and 1 kilowatt for 2 but that seems modest to me thinking of everything else that could be in your pc.
When you get a good PSU, you could be surprised at how "little" wattage a system really needs. For something high-mid-range, you can often do fine with 550W ...
Related resources
a b U Graphics card
October 17, 2008 2:04:35 PM

No1sFanboy said:
Yes.

Here is a good read to put your mind at ease.

http://www.anandtech.com/casecoolingpsus/showdoc.aspx?i=3413

Hey, great article man. Anyone notice which High end power supply is the best 'high end' one there ? The Zalman 850W baby, I love it when everybody tries to tell me that Zalman doesn't make good power supplys, you stupid noobs just got pwned. In fact, when I'm running Quad Fire all nice and stable on it, I will make sure to let you know, you know who you are!
October 17, 2008 2:07:01 PM

lol @ kari, no it doesn't the 1 280 GTX does around 380 or so and the 4870 X2 drains more power than the 280 GTX, maybe not @ idle but @ load yes, Ati always had the trend of having low idle and huge load.

This is from Guru3D:

Radeon HD 4870 X2 (R700) 437 Watt Full Load.

Radeon HD 4870 X2 (R700) Crossfire 740 Watt Full Load.
October 17, 2008 2:11:24 PM

Annisman said:
Hey, great article man. Anyone notice which High end power supply is the best 'high end' one there ? The Zalman 850W baby, I love it when everybody tries to tell me that Zalman doesn't make good power supplys, you stupid noobs just got pwned. In fact, when I'm running Quad Fire all nice and stable on it, I will make sure to let you know, you know who you are!



Alot of reviews I've read show Zalmans ( I don't kno the 850w) to not have as high of a energy efficiency and it just wastes alot of energy instead of regulating it.

I personally go for Corsairs, they are very durable, have a high efficiency even when suppling alot of watts. The Corsair 1000HX has been reviewed to be better than alot of 1200 wat PSUs (thus the high price tag) and is able get the job done because of it's high Amperage.

Not nocking ur PSU, didn't read a 850w review of Zalman, they are just not a very widely used PSU.

I read a couple of reviews just now, it did well...but it doesn't have a power switch lol...thats sooo weird!!!
a c 89 U Graphics card
October 17, 2008 2:15:36 PM

L1qu1d said:
lol @ kari, no it doesn't the 1 280 GTX does around 380 or so and the 4870 X2 drains more power than the 280 GTX, maybe not @ idle but @ load yes, Ati always had the trend of having low idle and huge load.

This is from Guru3D:

Radeon HD 4870 X2 (R700) 437 Watt Full Load.

Radeon HD 4870 X2 (R700) Crossfire 740 Watt Full Load.

well daa'a :non: 
those are total system consumptions, the 270W (263W to be exact) is for the card alone measured by XBitLabs on a modified platform :kaola: 
a c 89 U Graphics card
October 17, 2008 2:17:03 PM

and on sidenote the PCIe standards only allow 300W usage for graphics cards...
October 17, 2008 2:17:42 PM

oh ok no I thought u were saying thats all the watts, I'm like he's gonna get a 300 wat PSu and use it LOL!
October 17, 2008 2:35:46 PM

No1sFanboy +1, Good article. Draiken in the article to which you refer did they specify a particular setup, and then recommend a PSU for it?
a b U Graphics card
October 17, 2008 2:44:31 PM

L1qu1d said:
Alot of reviews I've read show Zalmans ( I don't kno the 850w) to not have as high of a energy efficiency and it just wastes alot of energy instead of regulating it.

I personally go for Corsairs, they are very durable, have a high efficiency even when suppling alot of watts. The Corsair 1000HX has been reviewed to be better than alot of 1200 wat PSUs (thus the high price tag) and is able get the job done because of it's high Amperage.

Not nocking ur PSU, didn't read a 850w review of Zalman, they are just not a very widely used PSU.

I read a couple of reviews just now, it did well...but it doesn't have a power switch lol...thats sooo weird!!!



Haha, yea, well I was so pleased with my Zalman 600W that I decided to keep the same brand when getting the 850W. I mean, how cool is it to have your Power Supply cooled by heatpipes? I mean seriously. Obviously Zalman has the cooling part down pretty good. Yea, the no power switch issue, well it's not really an issue for me at least. If I need to fully cut the power to my rig, it is actually easier to reach the wall socket and pull the plug, than reach around back and flip a switch. But I could definately see for some people how that would be a pain. Honestly, I think it makes the PS look real sleek.
a b U Graphics card
October 17, 2008 2:48:57 PM

Oh, and I know this is totally off topic, but a Far Cry 2 performance review just came out, and the 4870X2 cleans up pretty good, but it is obvious that it has slight scaling issues, also Quad cores are finally doing their job. Hopefully ATI will release some epic drivers, or Ubisoft will patch it up to help out the 4870X2 a little more performance wise, kinda like Stalker Clear Sky which at first was totally unplayable at highest settings, but now is like a hot steaming knife thru butter.

http://www.pcgameshardware.com/aid,663817/Test/Benchmar...
October 17, 2008 3:02:03 PM

The fans help circulated air though :p . But with heat pipes it is quiet.
October 17, 2008 3:03:39 PM

Annisman said:
Oh, and I know this is totally off topic, but a Far Cry 2 performance review just came out, and the 4870X2 cleans up pretty good, but it is obvious that it has slight scaling issues, also Quad cores are finally doing their job. Hopefully ATI will release some epic drivers, or Ubisoft will patch it up to help out the 4870X2 a little more performance wise, kinda like Stalker Clear Sky which at first was totally unplayable at highest settings, but now is like a hot steaming knife thru butter.

http://www.pcgameshardware.com/aid,663817/Test/Benchmar...



It came under the 260 GTX in sli:S

meh we'll prob see increases with driver releases from both companies.
October 17, 2008 3:06:01 PM

Although I must add that its impressive for both the X2 and the GTXs in sli to do so well on a game with out supported drivers.

The game seems to be optimized really well, yet have very close graphics to the alot more demanding Crysis.
a c 130 U Graphics card
October 17, 2008 3:17:19 PM


Ball park idea at best.
This summary made me laugh "All-clear: You don't need a high-end PC to run Far Cry 2 at playable framerates - even the "Ultra High” Settings are far from the brutal system requirements Crysis imposes. Even with a Core 2 Duo E6600 or an Athlon 64 X2 6000+ and a Geforce 9800 GT/8800 GT or a Radeon HD 4850 you can play the highest settings."

So thats just not quite bleeding edge then :lol: 

Mactronix
a b U Graphics card
October 17, 2008 5:32:56 PM

Well, who says 'bleeding edge' means that the game has to be unplayable by current hardware???

Although, that is how I look at it. = P
a c 130 U Graphics card
October 18, 2008 7:03:06 AM


Sorry let me clarify what i meant was that the cards they are quoting as "Oh look you can even run it on these" are not exactly budget cards are they ? I mean a 4850 has what 4/5 cards above it (im grouping 9800 and 9800+ together etc, same card more or less).

Mactronix
October 18, 2008 11:58:25 AM

Draiken said:
I saw the website says they need 650 watt for one card and 1 kilowatt for 2 but that seems modest to me thinking of everything else that could be in your pc. will this PSU handle 2 of these cards and a raid setup?

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

The product has 80 amps but the card doesn't specify as to how much amperage it would require.

may i suggest this one
Green GP1230b

it will even support your future needs
a b U Graphics card
October 18, 2008 12:17:13 PM

4870x i would recommend 600w and 4870x2 in cf 750w. (high quality psu)
looking at the farcry2 performance review my rig seems to be up to run this game with all the eye candy.
=]
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