Antec EA500W will handle GTX470?

[Or94]

My friend wants to buy the NVIDIA GTX 470 and he have PSU of Antec EA500W. This PSU will handle the GTX470?

http://www.newegg.com/Product/Prod [...] 6817371007

 

[toyota]

a power supply doesn't just power the video card you know? without knowing the rest of the specs no one can give you an accurate answer to a question like that. that being being said the answer will likely be no if he has a pc worthy of putting a gtx470 in.

 

[Or94]

The CPU is QX9770 and 2GB RAM.

 

[OCGuy]

PSU requirements are generally overstated.

However, they do degrade over time, so the closer you are to the max output, the more likely something can happen down the road.

 

[toyota]

The CPU is QX9770 and 2GB RAM.

well he will certainly need more than 2gb of ram for some newer games unless he enjoys hitching. I certainly would not put a gtx470 with a QX9770 using that power supply. that system could easily get close to 375-400 watts or so under full load and that psu only has a max of 408 watts on the 12v line. if he has several drives and/or does any overclocking he will certainly be at the limit for what the psu was designed to handle.

what video card does he have now and what res does he play at? it might be best for him to just get a gtx460 or 5850.

 

[bryanW1995]

amps are what you need to worry about. that psu is rated at 34 a on the 12v rail. he'll be ok with the gtx 470 and qx 9770 as long as he doesn't get too crazy with his OC, but I'd probably go a bit higher on the psu. 40a would probably be better, any good 500-550w psu will be in that range. if you have questions about that post over in the psu forum and/or go to jonnyguru.com.

 

[Or94]

Now the friend have HD4850

 

[bryanW1995]

do you mean that he's using a 4850 instead of a gtx 470? if that's the case then an ea 500 will be, if anything, overkill.

 

[Or94]

He want to buy the GTX470 instead of HD4850.

 

[OCGuy]

Maybe he should consider a GTX460.

 

[golem]

Maybe he should consider a GTX460.

+1 on either the GTX 460 or ATI 5850.

 

[Or94]

But the GTX 460 is not good such as the GTX 470.

 

[kinobas]

if he has a ATI hd 5850 he should sell it and buy a better PSU and then get a gtx470

 

[happy medium]

With no overclock he will be ok.

 

[thilanliyan]

Yeah OCing will put it near the PSU limits. I just tried running both unigine (to load GPU) and prime95 (to load CPU) on my system and I pulled 500w at the wall (both are OCed), which is around 400w with 80% efficiency (if my kill-a-watt is reading correctly).

 

[extra]

Don't do it. Better safe than sorry.

 

[bryanW1995]

gtx 460 is ~ 90% of a gtx 470, but it will oc better, runs cooler, uses less power, etc etc. only way I would even consider 470 over 460 would be if heat/noise/power is absolutely no issue to you at all AND, based upon reviews, you think that a gtx 460 would be just barely too slow while gtx 470 would be just right.

ok, why does % (percent) keep showing up as % ???

 

[RussianSensation]

I am running a Core i7 860 @ 3.9ghz which consumes FAR more energy than the QX9770 and GTX470 @ 751mhz on the GPU on a 520W PSU. So it's definitely easily doable. The problem is the Antec 500 is rated at only 17A x 2 on 12V rail, or a maximum of 408Watts instead of the Corsair which is rated at 41A or a maximum of 480 Watts.

http://benchmarkreviews.com/index.p...task=view&id=30&Itemid=1&limit=1&limitstart=1

As a result, this particular 500W PSU may not be sufficient, or cutting it close. I would probably consider a 5850 instead (or a GTX460).

 

[cusideabelincoln]

If he doesn't overclock he will be fine.

If he overclocks the CPU or GPU, then he will need a new PSU.

Or of he has like 5 hard drives and a bunch of other stuff then he'd also need a new PSU.

 

[faxon]

heres how i see it. you only have 2gb of ram, you are going to HAVE to upgrade that or whatever you put in is going to constantly hitch while playing because your comp will be drive thrashing data in and out of ram from page file quite often under any modern game worthy of a 5830 or higher, and you could notice the difference in a lot of games with a much slower card even, like a 5770, which is faster than a 4850. if he only has so much budget to spend, i would focus on a 460 1gb model and another 2gb of ram, the difference of that combo upgrade will be bigger than going to the 470 would be, you dont need a new PSU, and you still have enough amps to overclock your 460 to well beyond 470 performance while still drawing less power. the only thing we still need to know to confirm that this is the best route is what resolution you play at. if you're playing at 1600x1200 or lower res (most 22" are 1680x1050), then a 470 is a waste when your system needs attention elsewhere, but if you're playing at 1920x1080 or higher, then a 470 makes a lot more sense IF you want to start maxing games out. the only downside is you will have to get a new PSU, and look at overclocking that CPU if you havent already, since there are some games which can take advantage of it quite well now. if you arent big on overclocking your GPU, the 460 is already getting factory overclocked models of 850mhz from 675 stock, so getting it to 470 performance is a walk in the park even for the most timid GPU overclocker

 

[SHAQ]

I think he'll be okay. My rig runs great with a 750 watter. The Antec has 44A on the 12V rails and is rated at 500 watts continuous so the max is around 600.

 

[toyota]

I think he'll be okay. My rig runs great with a 750 watter. The Antec has 44A on the 12V rails and is rated at 500 watts continuous so the max is around 600.

no it doesn't and you should know that you don't simply add the 12v lines together. as already mentioned twice it has a max of 408 watts on the 12v line and that's when its brand new. he would certainly be pushing it especially for long term use. if he was to oc the card then he absolutely would be at the very limit.

 

[bryanW1995]

yeah, shaq, it's rated for 34a max, not 44a. not a bad psu by any means, I have a couple of earthwatts running 24/7 DC, I was just saying that the numbers are a bit low to be rated as a "500w" psu. my hx 520, for example, is 41a.

 

[cusideabelincoln]

TL;DNWTR version:
No overclocking: Good to go.
Overclocking: Buy a new PSU.

Assuming a typical build under a full load, no overclocking:
171W for GTX 470 http://www.techpowerup.com/reviews/ASUS/GeForce_GTX_470/28.html

114W for QX9770 http://www.lostcircuits.com/mambo//...ask=view&id=79&Itemid=42&limit=1&limitstart=6

75W for the rest of the system

360W for the entire system. Under gaming conditions this will probably be closer to 300W, since the majority of games won't be maxing out his processor. 360W fully loaded is safely under the 408W Antec rates the +12V at, and it can peak out and remain stable up to 480W on just the +12V railhttp://www.hardwaresecrets.com/article/Antec-EarthWatts-500-W-Power-Supply-Review/526/8

Antec's numbers basically confirm this: http://www.anandtech.com/show/3809/nvidias-geforce-gtx-460-the-200-king/17

Their rig (i7 920 @ 3.33 GHz) with a GTX 470 is pulling 366W during a gaming session of Crysis. Factor in efficiency since their measuring at the wall, then the actual load their system is drawing from the PSU is in the range of 300-320W (depends on the efficiency curve of their power supply, but I'm assuming it's 80+ Certified). At worse we can even assume the QX9770 will draw 20W more power than their i7 920. 340W is still safely under the rated PSU specs.

The GTX 470 meets the same power requirements as last generations high end (4870, 280), and these cards can certainly work on a quality 500W PSU. No reason the 470 can't do the same. The GTX 480, now that's a different story.

Overclocking is also different story. This will draw significantly more power over stock. An overclock on the CPU and GPU can easily raise power requirements by 50% (or more), and this would put his system beyond the capabilities of the 500W Antec.

 

[bryanW1995]

I am running a Core i7 860 @ 3.9ghz which consumes FAR more energy than the QX9770 and GTX470 @ 751mhz on the GPU on a 520W PSU. So it's definitely easily doable. The problem is the Antec 500 is rated at only 17A x 2 on 12V rail, or a maximum of 408Watts instead of the Corsair which is rated at 41A or a maximum of 480 Watts.

http://benchmarkreviews.com/index.p...task=view&id=30&Itemid=1&limit=1&limitstart=1

As a result, this particular 500W PSU may not be sufficient, or cutting it close. I would probably consider a 5850 instead (or a GTX460).

he runs DC 24/7 like I do also, so you know that psu is getting pushed all the time. corsair is just very conservative with their psu ratings.