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Old 09-29-2008, 05:07 PM   #11 (permalink)
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Default Re: Best graphics card for a 400W, +12V 18 amp PSU

get a 4850, and before you say anything. read this
SYSTEM DRAW, not the card.
Power Consumption - Tom's Hardware : ATI Radeon HD 4850: Smarter by Design?

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Old 09-29-2008, 05:07 PM   #12 (permalink)
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Default Re: Best graphics card for a 400W, +12V 18 amp PSU

I would say for your PSU, the 4670 is about the best you'll find.
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Old 09-29-2008, 10:15 PM   #13 (permalink)
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Default Re: Best graphics card for a 400W, +12V 18 amp PSU

The only reason the 4670 is recommended more then the 3850 would have to be because like 90% of the time its able to run on your current PSU. Unlike the 3850, 9600 GSO's, and other more powerful cards. Which usually require a PSU upgrade to use.
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Old 09-30-2008, 02:25 AM   #14 (permalink)
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Default Re: Best graphics card for a 400W, +12V 18 amp PSU

Quote:
Originally Posted by Puddle Jumper View Post
The 4670 is about the same performance as the 3850 but has lower power consumption.
Really, are you positively sure? Check out this power consumption table i found from here. The Truth About Graphics Power Requirements V2 - Graphic Hardware - Forums - www.atomicmpc.com.au I'm pretty sure it is accurate as everything is cross referenced from articles.

HD4870 X2____________##########¦)#####################}| 88W-262W !
HD4870 ______________########¦)¦]######| 65W-80W-130W ²
HD4850 X2____________############################}| 230W %
HD4850 OC____________#######¦)########}' 64W-133W § (800/1250)
HD4850 ______________#####¦)#¦]#####}| 41W-61W-110W ²
HD4670 ______________#¦)######}| 10W-70W %
HD4650 ______________#¦)######## 10W-80W %
HD4470 ______________#¦)####| 10W-50W %
HD4450 ______________#¦)#}| 10W-30W %

HD3870 X2____________#######¦)¦]#############|' 58W-66W-171W ²
HD3870 ______________##¦)¦]######' 19W-25W-81W ²
HD3850 X3____________###################} 156W §
HD3850 X2____________######¦)###########' 54W-145W §
HD3850 ______________#¦)¦]####}|' 14W-20W-63W ²
HD3690 ______________##¦)###}' 21W-51W §
HD3650 ______________#¦)###| 12W-42W ² (512MB)
HD3650 ______________##¦)###}' 19W-53W § (256MB)
HD3470 ______________#### 32W
HD3450 ______________##¦)#} 18W-36W §

The 4670 actually uses more power than the older 3850 according to this power consumption chart. Note, i am also replying to a similar thread i created about a new GPU which you recommended the 4670 over the 3850.
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Old 09-30-2008, 02:32 AM   #15 (permalink)
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Default Re: Best graphics card for a 400W, +12V 18 amp PSU

Quote:
Originally Posted by veedubfreak View Post
get a 4850, and before you say anything. read this
SYSTEM DRAW, not the card.
Power Consumption - Tom's Hardware : ATI Radeon HD 4850: Smarter by Design?

Also, edit posts if no one else has posted. Don't bump.
Ok, so total system draw of the card was relatively lower with the hd4850 but I don't think that is a good measurement as it still consumes up to 110W on peak load, more than the preceding Ati cards, including the Nvidia ones i mentioned.
Although it is very power efficient it is still a hefty latest-gen cards and eats up the wattage/amps. I don't think it would be wise to put a 4850 in my system with the current PSU.


ATI Radeon HD 4850 System Requirements

* PCI Express® based PC is required with one X16 lane graphics slot available on the motherboard
* 450 Watt or greater power supply with 75 Watt 6-pin PCI Express® power connector recommended (550 Watt and two 6-pin connectors for ATI CrossFireX™ technology in dual mode)
* Certified power supplies are recommended. Refer to Certified Power Supplies 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 a complete ATI CrossFireX™ system, a second ATI Radeon™ HD 4850 graphics card, an ATI CrossFireX Ready motherboard and one ATI CrossFireX Bridge Interconnect cable per graphics card (included) are required
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