AMD R9 390X makes an appearance

WYP

WYP

News Guru
The AMD R9 390X makes it's first appearance. With small PCB and a AIO water cooling solution Fiji might make a great Mini PC which packs a punch.

07044739665l.jpg


Read more on the AMD R9 390X here.
 
Perhaps the PCB wont be as small as we think. What we see in the render is just the WB at the moment. PCB might extend further. Either way, those specs look divine right now!
 
If the PCB of the WCE version of the R9 390X is indeed different from the normal version, I wonder what this means for after market waterblocks...
 
Hopefully AMD have actually made something that can really compete with Nvidia because if it doesn't then I don't know how AMD are going to recover. But I do have high hopes for this card because those specs seem awesome, but the fact that it ships with a AIO makes me think the power requirements of this card are high and I just hope it's not as high as the R9 290x.
 
You just made waiting at the hair dresser enjoyable, cheers!
Those specs are epic, can't wait for the first confirmed benchmarks to appear
 
I think it's impossible for AMD to add 8GB of HBM on a single core card.
I read a lot of rumors that they were gonna do that but, I read this article: (it's in Dutch, sorry)
http://be.hardware.info/nieuws/42958/hbm-technologie-amd-beperkt-tot-4-gb-per-gpu
In the article they say because of the interposer the max amount of memory dies is limited to 4.
And I read before that the max size of the first HBM dies is 1GB also went to SK hynix site and their Q2 2015 Graphics Memory databook says that on the moment they only sell 1 GB dies.

the SK hynix page were i got the data book:
https://www.skhynix.com/products/support/databook.jsp

Personal I hope that I am wrong I love too see such GPU.

greetings
Spiritwolf

please forgive if I made spelling mistakes or bad phrases.
 
What makes you think it's short PCB? It looks like the board extends beyond the block right up to the back of the rad in that render to me. I mean obviously it's not made it to final production and nobody knows just yet but it doesn't look particularly short to me.

JR
 
As much as this will tempt me, I'm a little broke for the next few months with moving country and all so I shall restrain myself BUT I shall eagerly await Nvidias response :)
 
spiritwolf said:
I think it's impossible for AMD to add 8GB of HBM on a single core card.
In the article they say because of the interposer the max amount of memory dies is limited to 4.
And I read before that the max size of the first HBM dies is 1GB also went to SK hynix site and their Q2 2015 Graphics Memory databook says that on the moment they only sell 1 GB dies.
Click to expand...

You think wrong. HBM alone would be limited to 4GB currently, however, the way around that is by using an interposer to add another layer of 4GB of HBM memory. This then equates to 8GB. It's not a normal flat design like gddr3/gddr5. It's a 2.5D layered design meaning it also is vertical which is why the interposer aids in adding another stack. This is the rumor but I don't think it's wrong. They aren't dumb enough to release a Top Range card with 4GB of memory.

Next year with HBM2 and according to SKHynix themselves, it should be able to get to 8GB of memory without the need of an interposer and increase in speed by about x2.

But i think this rumor about being half length is wrong. First off the picture itself isn't exactly that high res and sort of blurrs the edge making it hard to tell if it ends or not.. plus it comes from WCCFTech who are not the most reliable source in my honest opinion.
 
If I understand you correctly you are saying that they will be combining a stack of 3D HBM with a stack of 2.5D HBM. If I remember correct the real 3D HBM approach isn’t ready yet, that’s why they are using the 2.5D HBM.
Image for the difference between the 2:

AMD%20Fiji%203D%20HBM.jpg


I did some research and most ‘older’ articles say because they are using the interposer the GPU is limited to one stack. And since SK hynix only has 1GB die at the moment so it has a max of 4GB VRAM.
But some newer articles say that AMD is going to use a “Dual Link Interposer”. If they can use this, this will mean they can put 2 stacks alongside the GPU.
Then is the question how are they going use the 2 stacks. If I am correct there are 2 ways to do this.
1) Make the memory controller bigger.
2) Work with the bank structure like registered DDR DIMMS
Another method cited in some articles is to accompany the 4GB of HBM with 4 GB of GDDR5, so using the HBM as first buffer and then the slower GDDR5. But that would defeat some of the advantages of HBM so I think they won’t do this.

Some of my sources:
http://www.tweaktown.com/news/44765/amd-radeon-r9-390x-feature-4gb-hbm-8gb/index.html
http://www.tweaktown.com/news/43742/amd-radeon-r9-390x-limited-4gb-vram-hbm-limitations/index.html
http://en.wikipedia.org/wiki/Registered_memory
 
Last edited by a moderator:
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Tiny cards incoming?

-edit- if the WCE is basically a full block with a 120 rad (not sure where the pump would be) that'd be pretty cool.
 
Well I've been hearing rumours that this is as quick as the 295x2, which would make it up to 20% faster than the Titan X.

I've also heard rumours that if HBM is all it's cracked up to be that, quote "Nvidia could be in trouble".

Obviously I take those claims with an enormous dose of sodium hydrochloride but if true this could be really good news for AMD. This, coupled with Zen that's apparently 40% faster than Excavator which is in turn 10% faster than Piledriver could be very good news for AMD.

I must say that right now I am scraping by perfectly fine on my Titan Blacks, even at 4k. Thus I don't think I will upgrade to this tech mostly because I would need Crossfire to work and it's been appalling lately, but it's nice none the less. What I am interested in however is Zen. If it's 50% faster than Piledriver that makes it very close to being as fast as Ivy E and even Haswell E and I wouldn't mind an 8 core CPU similar to the 5960x for hopefully a lower price.

AMD made the announcement that they were no longer going to just make low end products, so with any luck they can start to compete again :)
 
The Titan X was supposed to be as fast as a 295X2 according to some reviewers but in practice that never happened either lol.

The 390X won't get near a 295X2 either.
 
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