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Old 02-14-2009, 06:02 PM   #1 (permalink)
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Default Best GFX Card for my PSU

I have a CoolMax V-600 psu
3 12V rails @ 18A each
so thats 54A on the 12V rail
what is the most powerful gfx card i can wire into that?

rest o my specs:

MSI nForce4 s939 mobo
amd x2 3800+
2 gb ddr400 ram
74GB WD Raptor
500GB Seagate baracuda
dvd-r drive

Side question... can i use a card that requires like 50-54A or does the cpu, etc use some of the 12V power?

Thx
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Old 02-14-2009, 06:05 PM   #2 (permalink)
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Default Re: Best GFX Card for my PSU

I think my Corsair TX750 has a 54A rail, and as you can see in my sig I'm using a GTX260. Don't quote me on that though, I'm not too good with electric-ey stuff
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Old 02-14-2009, 06:09 PM   #3 (permalink)
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Default Re: Best GFX Card for my PSU

well you're problem will be a CPU bottleneck, not a psu issue. I wouldn't really recommend anything over a 3870 or 8800gt/gts to be quite honest as you just won't see improvement unless you can get more out of your cpu. But max you could put under it I would say is a 4870 or a gtx260 but those might be stretching it.
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Old 02-15-2009, 06:23 PM   #4 (permalink)
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Default Re: Best GFX Card for my PSU

I usually have my cpu overclocked from 2.0GHz to about 2.5-2.55GHz. I plan on upgrading to a ddr2 based rig pretty soon so that should free up any cpu bottle-necking (amd or intel, depends on the deals that are out). i would prefer to keep my psu as its fairly new. i figure i should just get the best gfx card my psu can handle so that i dont have to upgrade again when i go to a ddr2 rig. so assuming i'm not concerned with bottlenecking, what card should i get?
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Old 02-15-2009, 06:36 PM   #5 (permalink)
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Default Re: Best GFX Card for my PSU

like some of the above posters have said

your not going to see a significant improvment beyond a 8800 series card unless you improve your other hardware (cpu/mobo/ram)

before spending up to $200 or more on a video card, i would try to upgrade the other hardware first.
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Old 02-15-2009, 08:37 PM   #6 (permalink)
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Default Re: Best GFX Card for my PSU

I'm running a GTX260 with 36A, so I KNOW 54A will be more than enough. I have an almost identical setup, and I "see" a HUGE improvement over the X1900XT I had in it... and so far crysis (on high), farcry 2 (med/high) and fear 2 (high) has no lag and no problem playing it. It just takes a couple of seconds longer to load than my C2D system...
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Old 02-17-2009, 11:41 AM   #7 (permalink)
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Default Re: Best GFX Card for my PSU

Alright, i think im going to go with a GTX260 Core216 or 4870.... i'm just keeping my eyes pealed for the best deal. At least i'll be able to play dx10 games... i've been wanting to for a long long time
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Old 02-17-2009, 07:28 PM   #8 (permalink)
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Default Re: Best GFX Card for my PSU

TX750 there is a single +12v rail supplying up to 60 Amps
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Old 02-18-2009, 06:41 AM   #9 (permalink)
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Default Re: Best GFX Card for my PSU

Quote:
Originally Posted by Nukem View Post
I'm running a GTX260 with 36A, so I KNOW 54A will be more than enough. I have an almost identical setup, and I "see" a HUGE improvement over the X1900XT I had in it... and so far crysis (on high), farcry 2 (med/high) and fear 2 (high) has no lag and no problem playing it. It just takes a couple of seconds longer to load than my C2D system...
I have 49Amps and run 2 video cards and a power hungry overclocked little chip.

54Amps is cutting it for GTX 260 SLI, but way more then enough for a single card.
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Old 02-18-2009, 09:49 AM   #10 (permalink)
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Default Re: Best GFX Card for my PSU

Actually GTX 260 in SLI, just themselves consume only about 380W with 32A. I think people blow it out of proportion, on how much power graphics cards consume. But you have to add in the rest of your systems power draw as well.

This is a very nice article:
Actual Power Consumption And Current Requirements - Review Tom's Hardware : How Much Power Does Your Graphics Card Need?
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