AMD RX 490 Listed By Sapphire & Spotted In Official Slide

Lord Risky

Lord Risky

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AMD’s Mystery RX 490, Following The Paper Trail – Is This The Next Gen Vega 10, two Polaris 10 GPU's on a single pcb, or none of the above?

"The RX 490 is part of a promotion that ends on December 31 2016. This means that it has to launch in 2016 to be part of the promotion. Not only that but Sapphire is already listing the RX 490 on its website. Meaning not only is it launching this year but likely quite soon. So it’s not Vega 10 and it’s not Polaris 10. This brings us back to the question of “what the heck is the RX 490”. What about two Polaris 10 GPUs in a single card? Well this is where things get VERY interesting. There’s a healthy amount of evidence to support this"..........

AMD RX 490 4K Gaming Card Listed By Sapphire & Spotted In Official Slide - Launching In 2016
 
I'm hoping its going to be two Polaris 10 chips on an interposer/MCM that effectively work as a single chip rather than a one card crossfire setup like the previous X2 chips

Then again I'm not holding my breath.
 
ecmaster76 said:
I'm hoping its going to be two Polaris 10 chips on an interposer/MCM that effectively work as a single chip rather than a one card crossfire setup like the previous X2 chips

Then again I'm not holding my breath.
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Have you seen anything on how this would actually work? I mean how would work be dispatched having 2 full chips trying to act like one? I have seen a lot of posters mention the interposer setup but nothing indepth enough to make an educated guess on if it is plausible.
 
ecmaster76 said:
I'm hoping its going to be two Polaris 10 chips on an interposer/MCM that effectively work as a single chip rather than a one card crossfire setup like the previous X2 chips

Then again I'm not holding my breath.
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No and no and no and no. For one too few ROPs, secondly if they were capable of pulling that off they would have done it.
 
Presbytier said:
No and no and no and no. For one too few ROPs, secondly if they were capable of pulling that off they would have done it.
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Not really. The explicit multi adapter is what makes a lot of people think that it is just NOW possible. Having the application see the dual GPU as a single card. Again though as I posted above there are other questions as to the validity of the attempt.
 
JustReason said:
Not really. The explicit multi adapter is what makes a lot of people think that it is just NOW possible. Having the application see the dual GPU as a single card. Again though as I posted above there are other questions as to the validity of the attempt.
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The biggest issue is how few ROPS it has this is what holds the 480 from being a solid 4k card. Also I do not believe multi GPU setups are the future anymore.
 
Not holding my breath for any of AMD's offerings anymore. I have bought nothing but AMD the past decade because of the value in my price range. But if the RX 490 is better than the GTX 1070 ill buy it because AMD needs support. Just really hope it isnt as hot as the R9 290s and the 480.
 
///AMG said:
Just really hope it isnt as hot as the R9 290s and the 480.
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Dude, comparing the 290's massive power draw and heat dissipation to the 150-160w RX480 is ludicrously absurd. Geez.......................
 
AMD already indicated this was the direction they wanted to head in- it just feels a little soon for something like that. But it does make sense and would negate the drawbacks of crossfire and sli. As to the how, I can't really say. You'd need logic that is the equivalent of a load balancer that makes each individual chip "invisible" to the application for it to be seen as one. Since game rendering is massively parallel I don't see many issues other than whatever added complexity goes into designing the board or GPU logic. But given all the CPU influences in GCN, AMD would certainly be at least technically capable of such a feat.
 
Sharps97 said:
AMD already indicated this was the direction they wanted to head in- it just feels a little soon for something like that. But it does make sense and would negate the drawbacks of crossfire and sli. As to the how, I can't really say. You'd need logic that is the equivalent of a load balancer that makes each individual chip "invisible" to the application for it to be seen as one. Since game rendering is massively parallel I don't see many issues other than whatever added complexity goes into designing the board or GPU logic. But given all the CPU influences in GCN, AMD would certainly be at least technically capable of such a feat.
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Sounds like a lot of driver overhead though.
 
It could be done in hardware potentially. Supposedly a single Polaris 10 already has a more powerful (and higher clocked) scheduler than Fiji. The interposer could allow fast, low latency connections between the two chips and even shared memory access.

A lot of the challenges would be very similar to those faced by their HSA efforts.

Like I said before I'd be pretty surprised if anything nearly so awesome actually came to pass but its fun to speculate.
 
They have talked about MCM Opterons that use polaris 10 chip, I would not be surprised to find their coherency bus integrated for use in multi chip cards, and cpu cache access on apu's.
 
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