Overclocking the 470/480....

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sp12 Posted: Sat, Mar 27 2010 6:35 PM

So almost none of the reviews I've seen mention anything about overclocking.

The card already draws a TON of power, and at least two reviews mention temperatures of 99 degrees (just below boiling) while gaming.

What overclocking headroom do you think Fermi cards will have, and more importantly, do you think it'll improve markedly as yields improve?

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AKwyn replied on Sat, Mar 27 2010 7:16 PM

Well the only thing that can cool that monster is water cooling and even that will reduce it to 70-80 degrees. I suspect we'll get 10 more FPS out of this thing before the card craps out.

And the only way NVIDIA can improve the performance on this thing is to make take less power and make it more efficient. I mean how low can chipset manufacturers shrink their dies?

 

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As hot as these cards seem to be getting I wouldn't do much or expect much overclocking. I think they will get cooler when they get there manufacturing down. Some of the spin off chips may be better. This thing makes my old Pentium D seem cool.

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RyuGTX replied on Sun, Mar 28 2010 4:17 AM

I think they will get cooler sooner when card manufacturers put on a custom heatsink and fan.

Like what MSI did on the 5870.

http://hothardware.com/cs/forums/t/47453.aspx

 

Not sure how much airflow those fans put out on the GTX 480, but I don't think it can be anywhere near 2x 80mm fans.

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sp12 replied on Sun, Mar 28 2010 6:08 PM

Well that's nice too, but I'm more concerned with standard parts. The MSI edition 5870 was significantly more expensive than the regular, and if they did a custom 480 model, then I might as well go for the 5970 for the cost.

 

I eagarly await a respin for these cards, they need it.

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3vi1 replied on Sun, Mar 28 2010 6:45 PM

What Bob said.  I wonder when the next manufacturing shrink is coming?

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RyuGTX replied on Mon, Mar 29 2010 1:03 AM

sp12:

Well that's nice too, but I'm more concerned with standard parts. The MSI edition 5870 was significantly more expensive than the regular, and if they did a custom 480 model, then I might as well go for the 5970 for the cost.

 

I eagarly await a respin for these cards, they need it.

Well, the 5970 is a very hot card as well. And the 5870 isn't sitting cool either. Hard OCP's GTX 480 review showed the 5870 at only 6 degrees cooler on full load compared tot he GTX 480.

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AKwyn replied on Mon, Mar 29 2010 1:44 AM

RyuGTX:

sp12:

Well that's nice too, but I'm more concerned with standard parts. The MSI edition 5870 was significantly more expensive than the regular, and if they did a custom 480 model, then I might as well go for the 5970 for the cost.

 

I eagarly await a respin for these cards, they need it.

Well, the 5970 is a very hot card as well. And the 5870 isn't sitting cool either. Hard OCP's GTX 480 review showed the 5870 at only 6 degrees cooler on full load compared tot he GTX 480.

Other reviews might disagree with you Ryu ;)

 

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RyuGTX replied on Mon, Mar 29 2010 6:29 PM

TaylorKarras:

RyuGTX:

sp12:

Well that's nice too, but I'm more concerned with standard parts. The MSI edition 5870 was significantly more expensive than the regular, and if they did a custom 480 model, then I might as well go for the 5970 for the cost.

 

I eagarly await a respin for these cards, they need it.

Well, the 5970 is a very hot card as well. And the 5870 isn't sitting cool either. Hard OCP's GTX 480 review showed the 5870 at only 6 degrees cooler on full load compared tot he GTX 480.

Other reviews might disagree with you Ryu ;)

 

Other reviews most likely disagree with the review that I happen to have open on a tab when writing that post. I'm not saying the Hard OCP one is the correct one. I was just too lazy to look for more temp postings and I guess that is a failure on my part because the one on AnandTech shows a bigger gap in temps (Crysis benchmark). Even the 5970 is quite a bit cooler in their Crysis benchmark. But Futuremark seemed to lessen the gap in temps.

 

I just look at temps in reviews just to get an idea of how hot it is compared to others. Every reviewer tests for temps differently and they may have lower ambient temps in the room they are testing in compared to others. There seems to be enough variables to get a wide variety of results. As can be seen by the AnandTech article. Many people consider Crysis to kill cards and push cards to the limit. Based on that, people might consider that to be a good way to put a video card on high load. It may or may not, but according to the Anandtech temps, it isn't as much as Furturemark. Anyways, the point is that reviews won't get the same results and I'm not defending one over the other.

 

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sp12 replied on Mon, Mar 29 2010 9:26 PM

So all of these reviews are in early spring.

Several of them had 99 degress maxes, I would not be surprised to have these chips melt come summer.

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RyuGTX replied on Tue, Mar 30 2010 10:36 PM

sp12:

So all of these reviews are in early spring.

Several of them had 99 degress maxes, I would not be surprised to have these chips melt come summer.

 

That would happen in my apartment. I live in southern California and it gets pretty hot down here. Not only that, but it seems like my apartment traps heat pretty well because there isn't enough ventilation, even with all the windows open. Also trying to save money by not using the A/C.

 

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gurujames replied on Tue, Mar 30 2010 10:51 PM

Hi Guys,

           As far as heat issues go Koolance has got you covered from next week is my info

 

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