Radeon released RX 480. (Card is Released) - page 24.

asdalani

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Quote from: antantti on June 30, 2016, 04:48:06 AM

Quote from: Amph on June 30, 2016, 04:42:29 AM

i presume those were without any 6 pin, just absorbing power from the pci-e

You are right. And without tdp mod.

Everyone can google "melted atx connector", we are about to see more of these.

You need the Asrock H61/81 pro btc and fill the two +12 V on the mother board or use powered risers now.

Harlot

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It looks like a good card. What is your monthly net profit with this?

antantti

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Quote from: Amph on June 30, 2016, 04:42:29 AM

i presume those were without any 6 pin, just absorbing power from the pci-e

You are right. And without tdp mod.

Everyone can google "melted atx connector", we are about to see more of these.

Amph

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Quote from: antantti on June 30, 2016, 04:32:39 AM

Quote from: vaulter on June 30, 2016, 04:21:11 AM

Just FYI - the problem with reference 480 is that it stresses pcie power
just for comparison - 480 draws 80w in stock (up to 100w OC) from pcie connector (290x - 32w, 380x - 48w) this is 24/7 it will stress your motherboard 12v or USB/Ribbon riser power - so it might a good idea to wait and see what happens to reference/custom design in this regard
now - its 80w minimum per card - so 6 should draw at least 480W through risers - and even with molex splitting up in 2 separate 12V lines in PSU might burn you risers/card slots (some use molex to sata - which is much worse)
Just be really careful with multiple 480 rigs!

for comparison with 290x and 380x read here under Update 6 https://www.reddit.com/r/Amd/comments/4qfwd4/rx480_fails_pcie_specification/

Normally it is ATX power connector (12V pins) that gives up first. And you don't need six cards to do that, I have done it with only two gtx 750ti.

i presume those were without any 6 pin, just absorbing power from the pci-e

antantti

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Quote from: vaulter on June 30, 2016, 04:21:11 AM

Just FYI - the problem with reference 480 is that it stresses pcie power
just for comparison - 480 draws 80w in stock (up to 100w OC) from pcie connector (290x - 32w, 380x - 48w) this is 24/7 it will stress your motherboard 12v or USB/Ribbon riser power - so it might a good idea to wait and see what happens to reference/custom design in this regard
now - its 80w minimum per card - so 6 should draw at least 480W through risers - and even with molex splitting up in 2 separate 12V lines in PSU might burn you risers/card slots (some use molex to sata - which is much worse)
Just be really careful with multiple 480 rigs!

for comparison with 290x and 380x read here under Update 6 https://www.reddit.com/r/Amd/comments/4qfwd4/rx480_fails_pcie_specification/

Normally it is ATX power connector (12V pins) that gives up first. And you don't need six cards to do that, I have done it with only two gtx 750ti.

vaulter

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Just FYI - the problem with reference 480 is that it stresses pcie power
just for comparison - 480 draws 80w in stock (up to 100w OC) from pcie connector (290x - 32w, 380x - 48w) this is 24/7 it will stress your motherboard 12v or USB/Ribbon riser power - so it might a good idea to wait and see what happens to reference/custom design in this regard
now - its 80w minimum per card - so 6 should draw at least 480W through risers - and even with molex splitting up in 2 separate 12V lines in PSU might burn you risers/card slots (some use molex to sata - which is much worse)
Just be really careful with multiple 480 rigs!

for comparison with 290x and 380x read here under Update 6 https://www.reddit.com/r/Amd/comments/4qfwd4/rx480_fails_pcie_specification/

Dev_Sempak_coin

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look someone OC RX 480 and get stable 27+mhs

http://cryptomining-blog.com/8041-optimizing-the-power-usage-of-amd-radeon-rx-480-for-ethereum-mining/

PovertyByte

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Quote from: Marvell1 on June 30, 2016, 02:05:35 AM

Quote from: PovertyByte on June 30, 2016, 01:41:05 AM

Quote from: ivan1975 on June 30, 2016, 12:21:42 AM

Quote from: mirny on June 29, 2016, 08:06:12 PM

be careful with oc, 480 can push 85w+ through pciex at stock clocks

Bad news.
Some links:
http://videocardz.com/61667/what-reviewers-say-about-radeon-rx-480-exceeding-pci-express-power-specifications
https://www.reddit.com/r/Amd/comments/4qfwd4/rx480_fails_pcie_specification/

Well, I will be waiting for them to fix that if it can even be fixed or waiting for the 470 for sure now. And I am now not trusting AMD here. Advertised such a tremendous power efficiency that is all a lie?

They stated 150 TDP

its inline with that , from the wall you lose efficiency due to waste from the PSU which is why people are seeing 160-170 watts

ALl the folks expecting 100 watts to get 27 -28mhs were fooling themselves although i hear the 1070 gtx gets 30 mhs for 120 watts but until they fix it to run on windows I'm not touching that.

As you said though the 470 will be the more interesting card if it can hit 23-24mhs at 120 watts it could be good, but I see posts of people expecting it to do that hashrate at 50-60 watts and i just laugh.

I understand the wall pull, but I am not looking to stress my motherboard that is already 7 years and still has plenty of years left in it. Either the videocardz link or the reddit mentioned 180 watts which just hits the point where the efficiency was well overhyped by AMD. That one other page may have found that 116 watts in GPUz could make 28 MH/s but 116 watts in the system should not translate to as much as 180 watts from wall.

Amph

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Quote from: Marvell1 on June 30, 2016, 02:05:35 AM

Quote from: PovertyByte on June 30, 2016, 01:41:05 AM

Quote from: ivan1975 on June 30, 2016, 12:21:42 AM

Quote from: mirny on June 29, 2016, 08:06:12 PM

be careful with oc, 480 can push 85w+ through pciex at stock clocks

Bad news.
Some links:
http://videocardz.com/61667/what-reviewers-say-about-radeon-rx-480-exceeding-pci-express-power-specifications
https://www.reddit.com/r/Amd/comments/4qfwd4/rx480_fails_pcie_specification/

Well, I will be waiting for them to fix that if it can even be fixed or waiting for the 470 for sure now. And I am now not trusting AMD here. Advertised such a tremendous power efficiency that is all a lie?

They stated 150 TDP

its inline with that , from the wall you lose efficency due to waste from the PSU which is why people are seeing 160-170 watts

ALl the folks expecting 100 watts to get 27 -28mhs were fooling themsleves although i hear the 1070 gtx gets 30 mhs for 120 watts but until they fix it to run on windows I'm not touching that.

it's more than 30, much more, and still only for less than 150w, but for now it work that good only with linux, maybe already on windows with the last drivers, someone should try it

Marvell1

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Quote from: PovertyByte on June 30, 2016, 01:41:05 AM

Quote from: ivan1975 on June 30, 2016, 12:21:42 AM

Quote from: mirny on June 29, 2016, 08:06:12 PM

be careful with oc, 480 can push 85w+ through pciex at stock clocks

Bad news.
Some links:
http://videocardz.com/61667/what-reviewers-say-about-radeon-rx-480-exceeding-pci-express-power-specifications
https://www.reddit.com/r/Amd/comments/4qfwd4/rx480_fails_pcie_specification/

Well, I will be waiting for them to fix that if it can even be fixed or waiting for the 470 for sure now. And I am now not trusting AMD here. Advertised such a tremendous power efficiency that is all a lie?

They stated 150 TDP

its inline with that , from the wall you lose efficency due to waste from the PSU which is why people are seeing 160-170 watts

ALl the folks expecting 100 watts to get 27 -28mhs were fooling themsleves although i hear the 1070 gtx gets 30 mhs for 120 watts but until they fix it to run on windows I'm not touching that.

As you said though the 470 will be the more interesting card if it can hit 23-24mhs at 120 watts it could be good, but I see posts of people expecting it to do that hashrate at 50-60 watts and i just laugh.

PovertyByte

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Quote from: ivan1975 on June 30, 2016, 12:21:42 AM

Quote from: mirny on June 29, 2016, 08:06:12 PM

be careful with oc, 480 can push 85w+ through pciex at stock clocks

Bad news.
Some links:
http://videocardz.com/61667/what-reviewers-say-about-radeon-rx-480-exceeding-pci-express-power-specifications
https://www.reddit.com/r/Amd/comments/4qfwd4/rx480_fails_pcie_specification/

Well, I will be waiting for them to fix that if it can even be fixed or waiting for the 470 for sure now. And I am now not trusting AMD here. Advertised such a tremendous power efficiency that is all a lie?

yugyug

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the price is quite tempting, but the power issue based on some reviews. let's wait for other rx 480 OEM gpus for the fix of this issue. maybe a slight revision on the design of power management side.

Masha Sha

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Thx guys for all the reports and photos! Thermal flow ;-) so the chips will have to use blank spaces to dissipate;-)

ivan1975

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Quote from: mirny on June 29, 2016, 08:06:12 PM

be careful with oc, 480 can push 85w+ through pciex at stock clocks

Bad news.
Some links:
http://videocardz.com/61667/what-reviewers-say-about-radeon-rx-480-exceeding-pci-express-power-specifications
https://www.reddit.com/r/Amd/comments/4qfwd4/rx480_fails_pcie_specification/

Marvell1

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Quote from: jstefanop on June 29, 2016, 09:50:53 PM

Getting about 26-27 MH on mine with basic settings that can be adjusted via crimson. Ill measure exact power draw in a bit, but running around 80c with very quiet fan profile (50% fan speed).

This should easily hit 30 MH once non reference cards hit.

I concur i ran 5 cards i picked up today and posted some pictures on my results

http://forum.ethereum.org/discussion/8017/xfx-rx480-black-oc-1328m-8gb-mining-results#latest

philipma1957

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Quote from: jstefanop on June 29, 2016, 10:28:29 PM

Looks like its pulling around 180 watts for me...which is pretty horrible considering this is supposed to be a 150 watt card. I guess considering the higher hashrate its not bad, but definitely higher than i expected.

and what are your settings> standard clocks? are these cards voltage locked? no under volting?

which one do you have?

and is it the 4gb or the 8gb

Tmdz

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Wow that seems like a lot considering my 290s with a undervolt pull only 220 watts at the wall, which is only 40 watts more than this card. I paid $60 cheaper for them per card that means I can mine on my 290's for 6+ months before I even see that savings in the power cost.

Seems hard to justify at this point to get on the rx 480 game.

jstefanop

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Looks like its pulling around 180 watts for me...which is pretty horrible considering this is supposed to be a 150 watt card. I guess considering the higher hashrate its not bad, but definitely higher than i expected.

jmumich

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Quote from: greaterninja on June 29, 2016, 09:06:14 PM

I've worked in semiconductors for 3 years...specifically in chip packaging for companies such as Apple and AMD. Going from 28nm process to 14nm does not imply thermal energy per area stays the same. It also does not imply that the chip area/die shrinks. It usually means transistor dimensions used to build the chip get smaller and heat generated per area usually goes down as the process becomes more efficient. I think your argument is a little flawed as you are associating the 28 vs 14 nm process to the chip's area when it directly relates to the smallest feature of a chip...in this case the transistors.

Thanks for this explanation. Here, it looks like (according to Wikipedia anyway) the die size is 232 mm^2, with 5.7 billion transistors. That's somewhere between Tonga (R9 380) with 5 billion transistors and a 359 mm^2 die size and Hawaii (R9 390) with 6.2 billion with a 438mm^2 die size.

So it looks like they did shrink the die size to closer to Trinidad (R7 370, 2.8 billion transistors, 212 mm^2 die size).

If I understand this right, there's some room to grow.

hawkfish007

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Quote from: jstefanop on June 29, 2016, 09:50:53 PM

Getting about 26-27 MH on mine with basic settings that can be adjusted via crimson. Ill measure exact power draw in a bit, but running around 80c with very quiet fan profile (50% fan speed).

This should easily hit 30 MH once non reference cards hit.

Nice, what mining software are you using? I will have to wait till tomorrow to get mine Sad

Topic: Radeon released RX 480. (Card is Released) - page 24. (Read 60193 times)