Is Fiji XT a dual GPU?

[the54thvoid]

Right from the unreliable horses mouth.

http://fudzilla.com/news/graphics/37373-amd-fiji-has-two-gpus

Makes some sense - TDP, leaked (Titan X busting) performance, requires water cooling, the jump from 4GB HBM to 8GB HBM, the requirement of two gpu's for a certain software in VR.

 

[Ferrum Master]

unreliable horses mouth.

Why are you bashing a horse? They don't deserve to be compared to something like that...

 

[d1nky]

wouldnt be surprised if this is true. but wouldnt it be called 395x

 

[Fluffmeister]

It's boring either way, fucking release it.

 

[GhostRyder]

Right from the unreliable horses mouth.

http://fudzilla.com/news/graphics/37373-amd-fiji-has-two-gpus

Makes some sense - TDP, leaked (Titan X busting) performance, requires water cooling, the jump from 4GB HBM to 8GB HBM, the requirement of two gpu's for a certain software in VR.

If that is true, its a huge disappointment...

But then again we will not know until we see it in person. But I would be confused if they did that because it would not be interesting enough to take a crown especially considering that they would still be held back to 4gb per GPU...

Also it would not fit with this leak from earlier about the new AIO. The AIO shown was designed more with a single GPU in mind so to me it still has to be a single GPU card. But that is my speculation...
http://wccftech.com/amd-fiji-xt-r9-390x-zauba/

 

[Devon68]

I don't think it's a dual gpu.That might come later in the form of a R9 395x or something.

 

[crazyeyesreaper]

Okay this is pretty much fud and heres why

If we lookat GCN cores and their performance and look at the 285 Tonga, then the 390x would have similar capabilities to a 7990 ~ 295x2 now due to scaling being worse on dual gpus we can expect look ing at specs that the 390x should come in around 7970 xfire performance in terms of cores / rops / tmus if we believe the specs reported.


390X
Shaders: 4096
ROPs: 64-128
TMUs: 256

285 Tonga:
Shaders: 1792
ROPs: 32
TMUs: 112

280x:
Shaders: 2048
ROPs: 32
TMUs: 128

295x2
Shaders: 5632
ROPs: 128
TMUs: 352

Looking at the specs and the minor efficiency gains in GCN with recent revisions the 390X Should perform somewhere between R9 285 Crossfire and R9 290 Crossfire

At 4k Resolution

Considering Crossfire doesn't tend to scale great across all titles we can extrapolate that performance of the 390X if its specs are correct it should perform somewhere between the 7990 and 295x2 leaning closer to the 295x2 due to improvements in silicon / memory bandwidth etc. That means 10%-46% faster than the 290X. An increase of 30% would put the 390X on par with Titan X. 295x2 has a lead of 20% over the Titan X. that makes a gap of 50% which is VERY close to the supposed 60% increase. This of course boils down to if the leaked specs are correct. With things as they are I expect the 390X to be about 30% faster than a 290X at standard resolutions. At 4K we might see an increase of around 45% realistically which would allow for a R9 390 to place in about 15% behind that while a tweaked 290x with higher clocks could then fill in easily enough as the 380X and so on.


390X
Shaders: 4096
ROPs: 64-128
TMUs: 256

VS

295x2
Shaders: 5632
ROPs: 128
TMUs: 352

The 390X as a dual GPU would make no sense as it would be according to specs weaker than the 295x2.

 

[Caring1]

Right from the unreliable horses mouth.

http://fudzilla.com/news/graphics/37373-amd-fiji-has-two-gpus

Makes some sense - TDP, leaked (Titan X busting) performance, requires water cooling, the jump from 4GB HBM to 8GB HBM, the requirement of two gpu's for a certain software in VR.

Makes no sense.
The new single chip GPU will beat the TitanX, but probably not by as much as speculated.
It's not exactly a major leap from 4Gb to 8Gb for top tier cards, there are cards with more that are single chip also.
AIO cooling solutions are being touted for a number of cards now, not just dual chip models.
I think there will be a dual chip offering in the future, based on the new card, but not quite yet.