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some questions about ATI 5850

Last response: in Graphics & Displays
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October 27, 2009 5:15:34 PM

actually, i have several questions and not all of them are about the video card itself...
1. if i get, for example, 700w PSU, will it eat up all 700w if i have core i5+5850? or just what it needs? i mean, will the PSU itself eat 700w or just 500w, giving the 400w (with 80% output)? :pfff: 
2. what's the minimum PSU required for this bundle? :whistle: 
3. when we bought a GTX 275 for my friend, it said that he needs a 500w PSU WITH ampers. does the 5850 require any ampers?
4. how better is it compared to GTX 275? :heink: 
5. how good is this RAM? http://www.frys.com/product/5844343?site=sr:SEARCH:MAIN... :sol: 

More about : questions ati 5850

October 27, 2009 8:59:35 PM

so, nobody wants to answer? cmon guys i need your help...
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a b U Graphics card
October 27, 2009 10:10:07 PM

if you only plan on getting one card (aka noe crossfire), any quality 550w PSU with significant amps on the 12v rail should be able to handle a system with one video card

my recommendation: Corsair 550VX

also a PSU will only deliver what the computer needs, so a pc needing 450w will get that if the psu can output it, it will use 563w @ 80% eff at the wall
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October 27, 2009 10:14:30 PM

but how many amps do i need for this card? i'm planning to get one, so i need to know how much amps PSU should i get... also, my friend told me that 500w should be enough... my other friend has his gtx 275 running @ 500w with no problem...
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October 28, 2009 5:04:19 AM

miha2 said:
but how many amps do i need for this card? i'm planning to get one, so i need to know how much amps PSU should i get... also, my friend told me that 500w should be enough... my other friend has his gtx 275 running @ 500w with no problem...


Here are the official power requirements for the brand new ATI Radeon HD 5850 and HD5870 video cards.

ATI Radeon™ HD5850 System Requirements

PCI Express® based PC is required with one X16 lane graphics slot available on the motherboard
• 500 Watt or greater power supply with two 75W 6-pin PCI Express® power connectors recommended (600 Watt and four 6-pin connectors for ATI CrossFireX™ technology in • dual mode)

ATI Radeon™ HD5870 System Requirements

• PCI Express® based PC is required with one X16 lane graphics slot available on the motherboard
• 500 Watt or greater power supply with two 75W 6-pin PCI Express® power connectors recommended (600 Watt and four 6-pin connectors for ATI CrossFireX™ technology in • dual mode)
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a c 175 U Graphics card
October 28, 2009 5:29:41 AM

1) If you buy a PSU it will only provide what it needs to. If your system is in sleep mode and only needs 130W, then thats all the PSU will provide. If your gaming and it needs 650W then it should provide that, assuming it can. If you buy a 700W PSU it won't be drawing 700W from the wall all the time.

2) An i5 with the 5850 shouldn't be any more power hungry then a Q9xxx and the 4870. This means any QUALITY 500W PSU should be fine. Just make sure you have 30A on the 12V rail. (if that didn't make sense, see below.)

3) All electronic devices require "ampers". Watts is how many, Amps is how fast. I suggest looking up the wiki page for "Ohms law" to learn how Watts (power), Voltage, Amps, and Resistance are related. Come back and ask any questions you might have.

4) This one is iffy. Some games its quite a bit better, while others show it no better at all. HardOCP just did a review of Batman:AA, where the 5870 was only as fast as a GTS280, while other games show it nearly as fast as the GTX295. Might be a driver issue, might be a game that just doesn't like AMD video cards. The fact that the 5850 was only as fast as the GTX275 isn't a bad thing however. Its cheap, supports DX11, and supports Eyefinity. Seeing as Nvidia doesn't have a better card, you might as well get it.

5) Not bad but there is better out there.

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

These are $10 cheaper, free shipping, and a touch faster. (CL timing of 8 instead of 9) I also couldn't find the voltage you'd need to run on the ram you linked. Its ok to buy, but make sure you get CL9 timings with 1.65 or less volts.
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October 28, 2009 5:39:29 AM

thanks, 4745454b. your answer is the best. especially i liked the answer on question 3 even though you answered it in question 2, but that's ok. thank you
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January 5, 2010 3:04:30 PM

good answere 4745454b,
would u say OCZ StealthXStream OCZ500SXS 500W ATX12V 24PIN Active PFC ATX Power Supply 120MM Fan Black
is a QUALITY power supply ???

I will also run a corei5 on a Asus p7p55d mobo with a new graphic card and I still haven't chose which one I'll buy. (any suggestion ??? my bugdet is around 200$-250$ or higher if necessary... And what I want is to run most of new first person shooter games with as many fps as possible.

Thanks
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January 5, 2010 11:29:56 PM

"most of new first person shooter games with as many fps as possible. "
is crysis one of those? then core i5+ati 5970, since only that card can run it on 1680x1050 with all settings on highest possible... hehe...
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