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[WCCF] AMD RX 480 Can Hit 1.5Ghz+, New Overclocking Tool With Voltage Control Coming - Page 118  

post #1171 of 2870
I'm still of the opinion that extra power and non-reference boards won't matter all that much because the reference card will OC very well on its own. I'd be surprised if we didn't get 1500MHz speeds even out of the $199 cards simply because I think 14nm FF will be the key determining factor, not extra power. We are talking about an extremely efficient chip here (probably only 100W or so at stock boost speeds). Of course even if the reference cards are limited by power, getting non-reference AIB cards that can do 1500-1600 MHz for less than $300 would still be a steal (and likely really good performers considering how much better GCN scales with OC's compared to Nvidia's last few architectures). Imagine how a 1600MHz 390X would perform?
post #1172 of 2870
Quote:
Originally Posted by Waitng4realGPU View Post

Well I guess it would be ok but I left a large margin for error/silicon lottery.

According to my wild assumptions you might get 1550mhz on a good sample of a card for $269. Then on an uber card for $329 maybe only 1600mhz.

The uber card would then be considered terrible value.

Anyway we all have our own opinions on how these are going to OC and what we personally would pay for them. We'll have to agree to disagree thumb.gif

Well originally based on the transition to 14nm, it offers 50% clockspeed improvements over 28nm. By going to 1266MHz with the 480 they already used 20% of their clockspeed improvement compared to previous gen. So there is another 30% leftover for clockspeed improvements here (yet AMD still settled on 1266MHz boost when clearly they could have gone higher). Now a while back I predicted the clockspeeds of the 1080 and 1070 based on the same arithmetic, that which is the clockspeed improvements from 28nm to 16nm. Yet when NVIDIA actually launched the 1080 and 1070 the clockspeeds ended up being even higher than what the facts say (on paper). Which means NVIDIA was able to go even higher than what 16nm can offer directly. Here I believe it is possible for the same scenario to occur with AMD, in that they might be sandbagging the clockspeeds (holding them back purposely). Whereas NVIDIA implemented all of their clockspeed improvements immediately. So there is always the possibility of over 1600MHz, it just about 1646MHz is the maximum on paper increase they can hit solely from 14nm.
Quote:
Originally Posted by Majin SSJ Eric View Post

Imagine how a 1600MHz 390X would perform?

Here's a 290X @ 1600MHz Fire Strike Extreme:



Here's a 980 Ti @ Stock Fire Strike Extreme:

post #1173 of 2870
Quote:
Originally Posted by Majin SSJ Eric View Post

I'm still of the opinion that extra power and non-reference boards won't matter all that much because the reference card will OC very well on its own. I'd be surprised if we didn't get 1500MHz speeds even out of the $199 cards simply because I think 14nm FF will be the key determining factor, not extra power. We are talking about an extremely efficient chip here (probably only 100W or so at stock boost speeds). Of course even if the reference cards are limited by power, getting non-reference AIB cards that can do 1500-1600 MHz for less than $300 would still be a steal (and likely really good performers considering how much better GCN scales with OC's compared to Nvidia's last few architectures). Imagine how a 1600MHz 390X would perform?

If GCN4 hasn't made any design regressions when it comes to clocking then through process change alone 1400 on reference should be the "guaranteed" OC. Only a very unlucky few might hit a wall in the 1300s.

Again, assuming AMD or GF have executed the 14FF transition with at least average competency.
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post #1174 of 2870
You guys are nuts if you're going to pay anything over $250 for this card. Its $229 for 8gb reference, so lets say $250 for an AIB card with non ref cooler, and if rumors are true you'll get a nice 1.5ghz clock out of it and be nipping on the heels of the Fury/Fury X.

Then theres the 1070 $379 MSRP for AIB cards, so i personally wouldn't pay more than $400 for it. Unfortunately with Nvidia's founders edition scam we wont be 1070s at $400 for some time. Now that i think about it, Nvidia's offering looks awful in terms of overall value especially the 1080. rolleyes.gif
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post #1175 of 2870
Thread Starter 
Quote:
Originally Posted by infranoia View Post

Drinking from Pascal's well, eh? The scaling on that fourth card is not great in DX11, granted-- but CF scaling is a far sight better than the competition. But I don't think we know enough about

1. These cards, or
2. DX12 MultiGPU

...to make that call. More info needed, especially with next-gen VR titles. If you can find anything at the $1000 pricepoint that would match 4 480s in raw speed, you're welcome to it (2 Vegas? One can hope...). Crossfire will soon be made obsolete by API, but I'm just not as afraid of it for all these aging DX11 titles as most of the grumps here on OCN.
Little boy! (Click to show)

Edited by Slomo4shO - 6/21/16 at 8:07pm
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post #1176 of 2870
Quote:
Originally Posted by Slomo4shO View Post

Little boy!

LOL! I did indeed forget who I was talking to. whistle.gif
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post #1177 of 2870
Quote:
Originally Posted by BiG StroOnZ View Post

Well originally based on the transition to 14nm, it offers 50% clockspeed improvements over 28nm. By going to 1266MHz with the 480 they already used 20% of their clockspeed improvement compared to previous gen. So there is another 30% leftover for clockspeed improvements here (yet AMD still settled on 1266MHz boost when clearly they could have gone higher). Now a while back I predicted the clockspeeds of the 1080 and 1070 based on the same arithmetic, that which is the clockspeed improvements from 28nm to 16nm. Yet when NVIDIA actually launched the 1080 and 1070 the clockspeeds ended up being even higher than what the facts say (on paper). Which means NVIDIA was able to go even higher than what 16nm can offer directly. Here I believe it is possible for the same scenario to occur with AMD, in that they might be sandbagging the clockspeeds (holding them back purposely). Whereas NVIDIA implemented all of their clockspeed improvements immediately.

I think that's probably the case. Polaris' goals are high efficiency and low cost: low voltage means better efficiency and lower clocks means looser tolerances, better yields, lower cost. They made it clear that those goals are more important to them than pushing the chip to the limits to try to compete with the much bigger GP104. And that means there should be significant headroom for those of us with different priorities. Assuming of course that GCN4 doesn't significantly reduce max clocks, which is possible, though I feel unlikely.
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post #1178 of 2870
Quote:
Originally Posted by Gungnir View Post

I think that's probably the case. Polaris' goals are high efficiency and low cost: low voltage means better efficiency and lower clocks means looser tolerances, better yields, lower cost. They made it clear that those goals are more important to them than pushing the chip to the limits to try to compete with the much bigger GP104. And that means there should be significant headroom for those of us with different priorities. Assuming of course that GCN4 doesn't significantly reduce max clocks, which is possible, though I feel unlikely.

Well that's basically why I think these $300 cards are going to have totally different goals than the reference design, and why I also believe that these high clocked AIB cards will most likely exist.

They already have "Super Clocked" versions of the AIB Reference 480:


Edited by BiG StroOnZ - 6/21/16 at 8:40pm
post #1179 of 2870
I hope its not just xfx cards that have the full length backplate.
 
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post #1180 of 2870
Those discounting the fact that AIB cards will be very necessary might need to reconsider because most recent testing of the reference design card maxes out at 1340MHz:



All these big overclock rumors we are seeing are AIB cards.

Also, thermal imaging of stock cooler:

https://vid.me/xs9x
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