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Graphic card for 250W Power supplied ?

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December 11, 2011 6:42:13 PM

I have a Pavilion a4327 PC, AMD Athlon ll 240 dual core, 4GB, GeForce 6150SE nForce 430, main: M2N68-LA (Narra5), power supply: ATX-250-12Z REV D7R 250W. And I thinking about upgrade the graphic card and I really don't know what to go for. I only have $100 or less for a graphic card. I choose HD 5570 but it seem they all out of stock, please help.

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a c 1308 U Graphics card
December 11, 2011 6:44:26 PM
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HD6570 would be very similar in power consumption http://www.anandtech.com/show/4278/amds-radeon-hd-6670-...
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a c 1308 U Graphics card
December 11, 2011 7:06:39 PM

Yes that is one!
December 11, 2011 7:19:46 PM

rolli59 said:
Yes that is one!

Just want to make sure before I buy it :D  :D  :D 
December 11, 2011 7:23:42 PM

I probably wait untill Christmas for a better deal :) 
a c 1308 U Graphics card
December 11, 2011 7:28:29 PM

$50 after rebate is not a bad deal! But if you are a subscriber at newegg for their news letter they sometime come with great deals.
December 11, 2011 7:39:27 PM

Newegg always have the best deal ever...:) 
December 11, 2011 8:39:05 PM

It doesn't come with a SFF bracket. Guess I have to buy one.
December 12, 2011 12:01:08 AM

I just been at a thread and a guy said I cannot go with the 6570. He said: check what the card specs say . then using the psu calc , add them together , then ad 20% for startup surge , then see if it comes to 250 watts or more.
I'm so confusing...@@
December 12, 2011 12:17:33 AM

rolli59 said:
Look at this one again total system load running a stress test on an I7 9xx overclocked system 204watts http://www.anandtech.com/show/4278/amds-radeon-hd-6670-...
That is an actual test done by a very reputable hardware site!

This guy keep telling me that I can't run this card and he said it require 400W and I said it not only for the card. I'm getting tired of this, I let him see the chart but he didn't say anything about it. If you want to join the chat, here the link: http://www.computerhope.com/forum/index.php?action=chat
a c 1308 U Graphics card
December 12, 2011 12:35:09 AM

I do not know them but see their view point. If manufacturer is recommending a certain size PSU they will not recommend anything smaller! I on the other hand am guiding you by known facts/tests that is performed by a respectable hardware site, I as well have no liability as a member on an public open forum, they on other hand might look at being liable for advice they give.
This came from one of them;
"the ati specs <wattage> for the 6570 from ati is >>>> 500 Watt or greater power supply with two 75W 6-pin PCI Express® power connectors recommended (600 Watt and four 6-pin connectors for AMD CrossFireX™ technology in dual mode)"
Clearly wrong, first of it is AMD today not ATI, second HD6570 does not need external 75watt PSU connections let alone two 500watts is to high as well and this is copied from AMD's website;
"400 Watt or greater power supply recommended (500 Watt for AMD CrossFireX™ technology in dual mode)" Recommendation based on generic crappy PSU's.
a c 1308 U Graphics card
December 12, 2011 12:45:41 AM

You will be fine the card is going to work fine in your computer! The key word is "recommended"
December 12, 2011 12:47:53 AM

Are you pretty pretty sure? Cause I do not want to burn my system
a b U Graphics card
December 12, 2011 1:00:37 AM

Even a HD6670 can run on a 250W PSU (it uses less power than a HD5670 which runs fine), so a HD6570 should have no issues :) 
a c 1308 U Graphics card
December 12, 2011 1:00:41 AM

vudothienan said:
Are you pretty pretty sure? Cause I do not want to burn my system
The Bestec unit in your computer is not the best but should still be able to run that card but if you start having issues it can be replaced on the cheap with something like this http://www.newegg.com/Product/Product.aspx?Item=N82E168...
a b U Graphics card
December 12, 2011 2:13:05 AM

Personally I would not risk using a midrange or even lower midrange card with a 250 Watt Power supply. I think it is really placing your machine at risk. I tried something like that years ago and about 30 minutes in to gaming USB ports would start malfunctioning among other issues then the machine would lock up.

You can not look at a 250 Watt Power Supply as 250 Watts. If that PSU has a 80% efficiency rating the actual wattage would eventually drop to 200 Watts. (250W x .80% = 200W). If it has a 70% efficiency rating then you are looking at 175 Watts.

The CORSAIR Builder Series CX430 Rolli59 linked would be highly advisable if it is compatible with your HP. The only reason I say that is some prebuilt computers have propitiatory connectors.

a c 1308 U Graphics card
December 12, 2011 2:30:04 AM

rwayne said:
Personally I would not risk using a midrange or even lower midrange card with a 250 Watt Power supply. I think it is really placing your machine at risk. I tried something like that years ago and about 30 minutes in to gaming USB ports would start malfunctioning among other issues then the machine would lock up.

You can not look at a 250 Watt Power Supply as 250 Watts. If that PSU has a 80% efficiency rating the actual wattage would eventually drop to 200 Watts. (250W x .80% = 200W). If it has a 70% efficiency rating then you are looking at 175 Watts.

The CORSAIR Builder Series CX430 Rolli59 linked would be highly advisable if it is compatible with your HP. The only reason I say that is some prebuilt computers have propitiatory connectors.

PSU's are rated on their DC output not AC input! Just to correct if the PSU has 80% efficiency means that the DC rating still stays at 250watts but it will pull 312.5watts from the wall on full load!
a b U Graphics card
December 12, 2011 2:58:52 AM

vudothienan said:
I have a Pavilion a4327 PC, AMD Athlon ll 240 dual core, 4GB, GeForce 6150SE nForce 430, main: M2N68-LA (Narra5), power supply: ATX-250-12Z REV D7R 250W. And I thinking about upgrade the graphic card and I really don't know what to go for. I only have $100 or less for a graphic card. I choose HD 5570 but it seem they all out of stock, please help.

Save up a bit more and grab a Radeon HD 6850 is is a powerhouse and it is a low power consumption beast that only needs one 6 pin power connector so it will work with a low end 250watt PSU.
December 12, 2011 4:56:29 PM

Headspin_69 said:
Save up a bit more and grab a Radeon HD 6850 is is a powerhouse and it is a low power consumption beast that only needs one 6 pin power connector so it will work with a low end 250watt PSU.

If the HD 6850 need a 6 pin power connector, it would take more than 250W to able to run it.
a b U Graphics card
December 12, 2011 8:01:51 PM

vudothienan said:
If the HD 6850 need a 6 pin power connector, it would take more than 250W to able to run it.

1 6pin PCI-E power connector can supply a max of 75watts draw from the PSU and as well the PCI-E lane itself can draw another Max of 75Watts from the PSU so 150 watt max and the Radeon HD does not even use all of that when under max load it can only use 127Watts.That leaves you with an overhead of about 120watts to run the rest of your low end hardware you will be fine.
a c 355 U Graphics card
December 12, 2011 8:05:10 PM

I wouldn't risk running a HD 6670 on a 250w PSU. But a HD 6570 will be fine.
a b U Graphics card
December 12, 2011 8:14:47 PM

jaguarskx said:
I wouldn't risk running a HD 6670 on a 250w PSU. But a HD 6570 will be fine.

I speak from experience I am not talking though my ass here and the Radeon HD 6850 @ absolute max draws 127Watts and that's only in the most demanding part in Metro 20033 etc or 3D Mark 11 etc so lets take account for all the low end parts that use very little power he has installed and then you will realize an overhead of Juice to run a single 6850.
a c 355 U Graphics card
December 12, 2011 8:17:54 PM

rwayne said:

You can not look at a 250 Watt Power Supply as 250 Watts. If that PSU has a 80% efficiency rating the actual wattage would eventually drop to 200 Watts. (250W x .80% = 200W).



Yeah, you got the math backwards. It would 250w / .8 = 312.5w. That basically means if the power supply is delivering 250w, then it is drawing 312.5w from the A/C outlet.
a b U Graphics card
December 12, 2011 8:24:00 PM

jaguarskx said:
Yeah, you got the math backwards. It would 250w / .8 = 312.5w. That basically means if the power supply is delivering 250w, then it is drawing 312.5w from the A/C outlet.

Its a 250watt power supply that means it is rated to deliver 250watts which is enough power for a low mid range system with a power efficient 6850 and he could in theory and practice run two 6670s from one 250wtt PSU.I ran two HD 4890s in CFX and a Phenom II x4 940 off one 500Watt Enermax PSU no problems ever in the year of ownership.
a c 355 U Graphics card
December 12, 2011 8:37:19 PM

Headspin_69 said:
I speak from experience I am not talking though my ass here and the Radeon HD 6850 @ absolute max draws 127Watts...


Just because you got it up and running does not mean it is safe. Maxing out the PSU near it's limit decreases the lifespan of the PSU. Therefore your PSU will die sooner rather than later.
a b U Graphics card
December 12, 2011 8:47:47 PM

jaguarskx said:
Just because you got it up and running does not mean it is safe. Maxing out the PSU near it's limit decreases the lifespan of the PSU. Therefore your PSU will die sooner rather than later.

By the time if and when the PSU goes he will have the money to spend $50 dollars on a good 450watt PSU LOL. I am just trying to save this guy some trouble because these low end Graphics cards are garbage for gaming and he will be wanting more down the line and the 6850 can and will deliver the performance for some decent gaming for today and tomorrow at a decent price.
a c 1308 U Graphics card
December 12, 2011 8:54:36 PM

jaguarskx said:
I wouldn't risk running a HD 6670 on a 250w PSU. But a HD 6570 will be fine.

Agreed 250watt PSU HD6570 or HD5570, 300watt PSU HD6670 or HD5670
a b U Graphics card
December 12, 2011 9:31:27 PM

rolli59 said:
Agreed 250watt PSU HD6570 or HD5570, 300watt PSU HD6670 or HD5670

The only thing he stands to lose is frame rates with a POS 6670 so don't discourage people from a 127watt peak Radeon HD 6850 when it will run just fine because I speak from experience LOL.
a c 1308 U Graphics card
December 12, 2011 9:46:18 PM

Headspin_69 said:
The only thing he stands to lose is frame rates with a POS 6670 so don't discourage people from a 127watt peak Radeon HD 6850 when it will run just fine because I speak from experience LOL.

I speak from experience as well! Here is a quick calculation for yourself HD6850 peaks at 127watts all from the +12volts. His PSU has 12 x 14 = 168watts available on the +12 volts. That leaves 41watts of 12 volt power for the CPU and other components! Is that enough? My answer to that is NO his CPU has tdp of 65watts!
a b U Graphics card
December 12, 2011 10:23:57 PM

rolli59 said:
I speak from experience as well! Here is a quick calculation for yourself HD6850 peaks at 127watts all from the +12volts. His PSU has 12 x 14 = 168watts available on the +12 volts. That leaves 41watts of 12 volt power for the CPU and other components! Is that enough? My answer to that is NO his CPU has tdp of 65watts!

So at worst the GPU will not get enough Juice = framerate drop however it will still be head and shoulders above the performance of a jankey 6670 LOL and he can always upgrade the PSU down the road for very cheap and if he wants to play games than a new PSU and something better than a jankey 6670 is essential end of story.
a c 355 U Graphics card
December 12, 2011 10:33:17 PM

Don't forget that the fans, hard drive and optical drive motors also draws power from the 12v rails as well as the CPU & GPU. The motherboard may also have some components that also draws power from there as well.
a c 1308 U Graphics card
December 12, 2011 10:42:53 PM

Headspin_69 said:
So at worst the GPU will not get enough Juice = framerate drop however it will still be head and shoulders above the performance of a jankey 6670 LOL and he can always upgrade the PSU down the road for very cheap and if he wants to play games than a new PSU and something better than a jankey 6670 is essential end of story.

If it was only fps to worry about, how about sudden shut downs black screens GPU recovery and so on?
a b U Graphics card
December 12, 2011 10:50:09 PM

rolli59 said:
If it was only fps to worry about, how about sudden shut downs black screens GPU recovery and so on?

Ether way a 6670 is busted for a gaming rig and so is a 250watt PSU however if he saves his money and gets a good component like the 6850 then he is one step closer to a decent rig for what he wants and he will not want a 6670 when he finds out that it sucks.Plus at leased he will be able to play games better than a 6670 because most games are not playable on a 6670 anyway while he saves for a new PSU.
a c 1308 U Graphics card
December 12, 2011 11:02:17 PM

Headspin_69 said:
Ether way a 6670 is busted for a gaming rig and so is a 250watt PSU however if he saves his money and gets a good component like the 6850 then he is one step closer to a decent rig for what he wants and he will not want a 6670 when he finds out that it sucks.Plus at leased he will be able to play games better than a 6670 because most games are not playable on a 6670 anyway while he saves for a new PSU.

OP did not ask for a gaming card! He asked for a GPU upgrade for a 250watt PSU! He as well states $100 or less for the upgrade!
It is good practice to read peoples posts before replying to avoid giving bad advice!
If OP had stated that he had a $200 dollar budget mine and jaguarskx advice would have more a long the lines you are thinking but the parameters were set by OP in his beginning post. So even recommending a card that is outside OP's budget is pointless and a bad advise looking away from PSU issues!

The gaming capabilities of the 6670 http://www.tomshardware.com/reviews/fastest-graphics-ca...
a b U Graphics card
December 12, 2011 11:08:23 PM

rolli59 said:
OP did not ask for a gaming card! He asked for a GPU upgrade for a 250watt PSU! He as well states $100 or less for the upgrade!
It is good practice to read peoples posts before replying to avoid giving bad advice!
If OP had stated that he had a $200 dollar budget mine and jaguarskx advice would have more a long the lines you are thinking but the parameters were set by OP in his beginning post. So even recommending a card that is outside OP's budget is pointless and a bad advise looking away from PSU issues!

The gaming capabilities of the 6670 http://www.tomshardware.com/reviews/fastest-graphics-ca...

Ya because i am sure he want to upgrade from his current onboard GPU to encode video and music faster LOL stop trolling your wrong bro. 9/10 times a GPU upgrade is for playing games and that goes without saying LOL.
December 13, 2011 2:12:45 AM

rolli59 said:
The Bestec unit in your computer is not the best but should still be able to run that card but if you start having issues it can be replaced on the cheap with something like this http://www.newegg.com/Product/Product.aspx?Item=N82E168...

I may get this power supplies, I don't really know because the 6570 can run on my system though
a b U Graphics card
December 13, 2011 3:12:23 AM

vudothienan said:
I may get this power supplies, I don't really know because the 6570 can run on my system though

Don't bother with that 6570 you will set yourself up for disappointment big time that 6570 card would struggle to run Mine Craft at 30fps.
December 13, 2011 9:16:59 PM

Headspin_69 said:
Don't bother with that 6570 you will set yourself up for disappointment big time that 6570 card would struggle to run Mine Craft at 30fps.
Well if that the case, I still have to go with it cause the $$$. If I have enough money I would buy the PSU that rolli59 suggest for me and get the 6850 too.
a b U Graphics card
December 13, 2011 9:25:34 PM

vudothienan said:
Well if that the case, I still have to go with it cause the $$$. If I have enough money I would buy the PSU that rolli59 suggest for me and get the 6850 too.

Dude there are some very rock solid options for under $100 American like the Radeon HD 5750/5770 and I will check because they might even run on less power than the 6850 so you are still in luck for decent gaming for under $100 just hold on I will get back to you.
December 13, 2011 9:30:28 PM

Headspin_69 said:
Dude there are some very rock solid options for under $100 American like the Radeon HD 5750/5770 and I will check because they might even run on less power than the 6850 so you are still in luck for decent gaming for under $100 just hold on I will get back to you.

Thanks, I appreciate it :) 
a b U Graphics card
December 13, 2011 9:38:13 PM

vudothienan said:
Well if that the case, I still have to go with it cause the $$$. If I have enough money I would buy the PSU that rolli59 suggest for me and get the 6850 too.

OK your still in luck here is the link for the Radeon HD 5750 / 5770 total system power draw is well under 250watts for the 5770 and under 200watts for the 5750 and here is the link http://www.tomshardware.com/reviews/radeon-hd-5770,2446... I can say from the experience of ownership of the Saphire Radeon HD 5750 1GB GDDR5 that is still plays any game out today and most will be played with maxed out settings 1080P and it will cost you under $100. Here is a link to a great card for your under $100 budget and it comes with a free copy of Dirt 3 http://www.newegg.com/Product/Product.aspx?Item=N82E168... . Peace and please let me know how it goes ;-)
December 13, 2011 11:30:17 PM

What is the difference between DDR3 and GDDR5. Will GDDR5 take more power than DDR3 ? The link you gave to me look like a really good deal but I didn't see the any feedback from people that bought the card. I might do some more research about it too
a b U Graphics card
December 14, 2011 1:21:41 AM

vudothienan said:
What is the difference between DDR3 and GDDR5. Will GDDR5 take more power than DDR3 ? The link you gave to me look like a really good deal but I didn't see the any feedback from people that bought the card. I might do some more research about it too

Do some research because it is really the only card to get @ under $100 that performs well and GDDR5 is newer and more power efficient just like the 6750 and the 6750 is the direct and exact same card as the 5750 just re-badged as 6750 so do some reserch and look it up on Youtube and you will be delighted and gaming on one soon.http://www.youtube.com/watch?v=m7J347UQJ5o
December 23, 2011 8:43:22 PM

Best answer selected by Vudothienan.
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