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AMD RX 480 Review Thread - Page 176

post #1751 of 3674
Quote:
Originally Posted by keikei View Post

The reference card is meant to run at stock. If you want to oc, wait for the aftermarket ones.
The point isn't overclocking. The card is pulling too much power from the PCI slot, meaning it needs power from somewhere else... like the PCI power connectors.
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post #1752 of 3674
Quote:
Originally Posted by Skye12977 View Post

Would this mean that 1. it's not as power efficient as they're supposed to be 2. that they should just have additional PCI connectors?

It means a few things...

The bigger issue is addressing the PCI-E power usage, is it a fluke in the initial batch or a bigger issue? Licensing require that they address and fix any issue in order to keep selling it as a PCI-E device.

Secondary to that would be the efficiency concerns, it is really starting to look like the 480 is just starving. Fixing the starvation issue may open it right up to new levels of performance.

EDIT:

I wouldn't be surprised if the single 6 pin isn't able to feed the GPU enough, and the card is attempting to compensate for that via drawing more across the PCI-E bus itself. When electronics aren't properly powered, they will do strange things to attempt to compensate for it.
Edited by PostalTwinkie - 6/30/16 at 3:12pm
    
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post #1753 of 3674
Guys and girls ... considering that the AIB cards will increase the power allowed to this card and show it's true potential as suggested what do you think they are going to charge us premium for those.

It's a card at a 199-239$ MSRP do you think an extra 20$ max 30$ for better air cooling is what we should expect or much more ?

i am seeing 1080 founders eddition and the Gigabyte G1 version with only 10$ difference in my country. But that's founders eddition not MSRP price frown.gif
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post #1754 of 3674
AMD should have stopped being coy and just put 2 six pin connectors on the reference design. The 970 which more or less uses the same amount of power still has two 6 pin connectors.

Anyway, this card has some pretty big efficiency issues. This 232mm2 chip is consuming 150w at stock and the only thing keeping it from consuming more is BIOS power limits. Once you start overclocking 200w+ is going to be tricky to dissipate from such a small die, reference cooler or not.
Edited by NuclearPeace - 6/30/16 at 3:20pm
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post #1755 of 3674
I would also like to see more efficiency test done with better coolers. We all know that a hot chip uses more power, how much will this thing use when you cool it down alot.
 
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post #1756 of 3674
soo... any point putting a waterblock on a reference PCB?
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post #1757 of 3674
Quote:
Originally Posted by NuclearPeace View Post

AMD should have stopped being coy and just put 2 six pin connectors on the reference design. The 970 which more or less uses the same amount of power still has two 6 pin connectors.

Anyway, this card has some pretty big efficiency issues. This 232mm2 chip is consuming 150w at stock and the only thing keeping it from consuming more is BIOS power limits. Once you start overclocking 200w+ is going to be tricky to dissipate from such a small die, reference cooler or not.

The problem is most people have PSUs with only 1x 6 pin.
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post #1758 of 3674
Quote:
Originally Posted by Skye12977 View Post

The point isn't overclocking. The card is pulling too much power from the PCI slot, meaning it needs power from somewhere else... like the PCI power connectors.

The card passed PCIe compliance testing with PCI-SIG. According to them its not pulling too much power from the PCI slot. Its more appropriate to take this dicussion to the thread that concerns this very topic.
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post #1759 of 3674
Quote:
Originally Posted by ZealotKi11er View Post

The problem is most people have PSUs with only 1x 6 pin.

I guess that's true. I forgot that cards refuse to POST if you forget to plug in auxiliary power.
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post #1760 of 3674
Quote:
Originally Posted by slavovid View Post

Guys and girls ... considering that the AIB cards will increase the power allowed to this card and show it's true potential as suggested what do you think they are going to charge us premium for those.

It's a card at a 199-239$ MSRP do you think an extra 20$ max 30$ for better air cooling is what we should expect or much more ?

i am seeing 1080 founders eddition and the Gigabyte G1 version with only 10$ difference in my country. But that's founders eddition not MSRP price frown.gif

I'd anticipate $299 for the Gigabyte G1 and similar AIB cards. They'll need custom PCBs with more power delivery, more VRMs, and drastically better cooling. Keep in mind AMD cut corners every way they could for the reference model.

At $299, the price is getting dangerously close to the 1070.
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