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Polaris RX 480 / RX 470 / RX 460 Discussion Thread - Page 47  

post #461 of 991
Quote:
Originally Posted by softskiller View Post

They write "uncritical 105°C" Is this really an okay temp?

Eh... for short periods. I'm surprised they didn't have stability issues. Most cards, nV and AMD, start to get wonky past 75c.

I'm also expecting 1.4-1.5V to be the safe limit like their past cards.

Edit: or what echoa said tongue.gif
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post #462 of 991
Anyone have any idea on what the max overvolt for the GPU would be? I'm curious if upping the voltage would get some of our cards past the 1350-1360 mark.
post #463 of 991
Quote:
Originally Posted by comagnum View Post

Anyone have any idea on what the max overvolt for the GPU would be? I'm curious if upping the voltage would get some of our cards past the 1350-1360 mark.

There's no way to find out right now

We have to wait for AIBs with at least one 8pin on em...

i guess we can be sure about that in a month
post #464 of 991
Video of the guy explaining his OC and what we should expect from custom cards.

https://www.youtube.com/watch?v=Jq47qmwcus8
post #465 of 991
Quote:
Originally Posted by comagnum View Post

Anyone have any idea on what the max overvolt for the GPU would be? I'm curious if upping the voltage would get some of our cards past the 1350-1360 mark.

Increased voltage doesn't guarantee anything. My 270x does 1.35ghz on 1.3v but many only peg around 1.2ghz
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post #466 of 991
Quote:
Originally Posted by linbetwin View Post

Video of the guy explaining his OC and what we should expect from custom cards.

https://www.youtube.com/watch?v=Jq47qmwcus8

Hmm, so he pretty much guarantees the aftermarket cards of being only capable of 1450 max OC. Slightly disappointing.
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post #467 of 991
Quote:
Originally Posted by Ultracarpet View Post

Hmm, so he pretty much guarantees the aftermarket cards of being only capable of 1450 max OC. Slightly disappointing.

Depends on phase count, how well vrms are cooled, how well you're specific unit clocks, etc.

That's just one 480, and reference too boot which isn't a measure for AIB overclocking
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post #468 of 991
Quote:
Originally Posted by linbetwin View Post

Video of the guy explaining his OC and what we should expect from custom cards.

https://www.youtube.com/watch?v=Jq47qmwcus8

Good vid, I'm hoping he got a bad chip (lol)

A 480 at 1400-1450mhz will still be very powerful, his card @ 1500mhz got to a 15300 graphics score, that's in heavily overclocked 980 territory isn't it?
Edited by Waitng4realGPU - 7/4/16 at 11:45pm
post #469 of 991
Quote:
Originally Posted by Echoa View Post

Depends on phase count, how well vrms are cooled, how well you're specific unit clocks, etc.

That's just one 480, and reference too boot which isn't a measure for AIB overclocking

They tested the limits of the chip itself (IE the reference board was not holding anything back), and it was 1500mhz with no scaling passed 1.35v. It was difficult to cool even on water, and was not entirely stable so they had to back it off to 1480mhz for regular use. He may have been unlucky and had a bad sample, but it is probably more safe to assume his card is nearer to the majority of cards, or closer to the average. +/- 5% from 1450 is likely what we will see. It will probably be slightly faster than a stock 980 in games.
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post #470 of 991
This guy says 480 is a cut-down chip:
http://forums.anandtech.com/showpost.php?p=38336220&postcount=40
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