AMD: Speculation, Rumors, and Discussion (Archive)

Why post misleading info.... serves no purpose.

 

Taken from this link:
https://www.reddit.com/r/Amd/comments/4qmlep/rx_480_powergate_problem_has_a_solution/

 

http://i.imgur.com/182IP4K.png?1

 

They are just mentioning the PCI Express spec, there is also the ATX12V V2.x and also their Power Distribution configuration guidelines, along with Molex spec that I have also touched upon.
You can go above 75W even though it is not defined by PCI Express spec, but is by others.
It really breaks the debate into two parts; one around the PCI Sig certification-spec exceeded and the other around the actual power demand/distribution and impact.
Cheers

 

Apparently, the voltage tolerances don't really matter because the overhead is in current (bad).

PcPer did a nice write up:
http://www.pcper.com/reviews/Graphics-Cards/Power-Consumption-Concerns-Radeon-RX-480

 

As long as GCN's generally decent power management knows it's blowing out its power budget, I suppose I can feel a little better.
My mistake seems to have been relying overmuch on the six-pin as some kind of ward against the usual TBP relationship with reality.

 

Well at least pcper is doing testing with cheap mobos. It's what Toms should be doing.

"For our part, we are going to be plugging the Radeon RX 480 into a couple of older platforms and running it in some “bad case” scenarios…just to see what happens."

 

Just checked some cheap PCIe slots. One can buy some slots really rated as low as 1.1A per pin. With five 12V pins in an PCIe slot, that equals exactly the 5.5A/66W with no reserves at all. With such slots I can imagine that there could indeed be problems, especially in the long run. At this point one can only hope that most mainboards use slots with slightly thicker contacts and a higher current rating.

 

Who are you replying to, and in regards to what?

 

It doesn't matter now.

 

Getting away of the "power gate" I'm actually happy to see the performance and see a mid range card performing like the last high end ones. Customs cards would be a very good choice.

Enviado desde mi HTC One mediante Tapatalk

 

BTW is there a possibility of having customs coolers that fit the reference pcb?

Enviado desde mi HTC One mediante Tapatalk

 

When is the 470 and 460. It's so strange that release of the 480 has had no info for the other cards..

 

Why is that strange? The 480 was announced separately from the 460 and 470. They will have a separate product availability and reviews timelines.

 

Do we know when that is?

 

Mid July sources said.

Enviado desde mi HTC One mediante Tapatalk

 

Don't see the problem with the card. I will be getting one for my gf this fall. It uses little power , performs better than the 390 and is only $230 for 8 gigs.

Best part is it replaces the ancient 6950 in her machine so the whole system should run cooler and put less strain on her power supply.

 

to me its very clear that AMD certified an internal sample running at lower clocks and/or with lower voltage. But due to pascal pressure, retail cards have been pushed above the sweet spot/certified sample. nothing uncommon in the industry...

 

So its a non issue when Nvidia does it , but a big deal with AMD ? The jumps for the 960 are far worse also

https://forums.overclockers.co.uk/showpost.php?p=29719176&postcount=10420