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Best GFX Card for 400w PSU?

Last response: in Graphics & Displays
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June 19, 2010 2:18:48 AM

I've got a 3-year old Gateway GM5474 and the 8500GT died today.

I'm looking for the best graphics card this computer can handle without having to upgrade it's 400 watt power supply.

I'd also like to note that upon opening the case I only saw one 4-pin power connector opposed to the 6-pin ones required for most cards. Do these cards come with some kind of adapter or will I need to buy it separately?

Any insight is greatly appreciated, thanks in advance. :) 

More about : gfx card 400w psu

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a c 1410 U Graphics card
a c 715 ) Power supply
June 19, 2010 2:32:16 AM

A card like this does not need external power and is a big upgrade from 8500GT http://www.newegg.com/Product/Product.aspx?Item=N82E168...
It will run on a 400watt PSU
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June 19, 2010 2:53:38 AM

Thanks for the fast reply.

That does indeed look like a big upgrade. Discounted price, free shipping, lifetime warranty. Great find. But I noticed that the PSU requirement is 350w, couldn't I get something stronger with a 400w requirement? I also saw that there are other 9800 GT's with 1gig memory, wouldn't that be better?

I'm a little disappointed though, is this the best my computer can take? I'd like to add that I do quite a bit of gaming. I understand that I limit my options by not upgrading the PSU but that's because I plan to build something better and I'd like to save for that.

Thanks again.
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a c 1410 U Graphics card
a c 715 ) Power supply
June 19, 2010 3:11:55 AM

The 9800GT is not powerful enough to noticeably gain from 1GB ram over 512Mb.
If your PSU has 24amps or more on the +12 volt rail you can run a card like this http://www.newegg.com/Product/Product.aspx?Item=N82E168... IT would require 2 x 4 pin molex from your PSU to be adapted into one 6 pin PCIe connector. Being a Gateway I am hesitant on recommending HD5750 card which is a great card but people have had issues with some older OEM systems with the HD5xxx cards.
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a c 199 U Graphics card
a c 126 ) Power supply
June 19, 2010 4:28:14 AM

You have a combined 30A on your +12V rails (there are two). You could run a HD5770 on that PSU if you wanted to.
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June 19, 2010 3:11:35 PM

I only see one 4-pin connector coming from my PSU and these cards require two. Even if I meet the Amp requirement how can I properly power these cards?

If I can, maybe I'll be able to get away with the 9800 GTX? It has a 450w requirement. Would this be worth the extra 60$ compared to the 9800 GT?
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June 19, 2010 4:15:44 PM

Quote:
I only see one 4-pin connector coming from my PSU and these cards require two. Even if I meet the Amp requirement how can I properly power these cards?

Still need an answer before I can make a decision.
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a c 1410 U Graphics card
a c 715 ) Power supply
June 19, 2010 4:27:35 PM

You can put a jumper lead from maybe a hdd power connection to get the other connection to the adapter that comes with the card (most likely that card is going to be fine connected with 1 4 pin molex to the adapter).
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a b U Graphics card
a b ) Power supply
June 19, 2010 4:27:45 PM

No, it will need both. Although rolli's answer would solve the problem. The 5770 uses about 100w at full load, about 78w at normal 3D use. The PCIe socket supplies 75 watts, the additional 25w needed would probably be handled by the single 4 pin.
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June 19, 2010 4:29:21 PM

And I'll only be able to connect one of the two 4-pin connectors in the adapter. Will this work fine?
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June 19, 2010 5:03:02 PM

So then it wont need both? rolli's answer sounds a little complicated to me.

If I wont run into any problems using a single 4 pin I'll give the 5770 a shot, I hope there's no bottleneck. Is there any particular reason you chose ASUS over the other manufacturers?
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a c 199 U Graphics card
a c 126 ) Power supply
June 19, 2010 5:10:27 PM

Looks like a great price on that Asus, especially if you play the rebate game and win. Asus has a good reputation in general, and with that price, that's probably why he picked it.
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September 13, 2010 10:23:57 PM

Best answer selected by Deliverance.
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