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[VC] AMD Radeon R9 290X with Hawaii GPU pictured, has 512-bit 4GB Memory - Page 21

post #201 of 1055
Quote:
Originally Posted by Alatar View Post

Has not been proven to do anything more than get better perf/watt.

Any facts on this? rolleyes.gif I'm sure not, because there isn't a GCN 2.0 on the market yet. The HD 7790 running on GCN 2.0 is/was purely a missconception, it was never something official from AMD, more like an slightly improved GCN 1.0, even AnandTech named it GCN 1.1 and that was made up. This was said over and over in this thread, but some people yet struggle to understand it... The new R-series cards will be the first official cards from AMD that will run GCN 2.0 and it is confirmed from AMD themselves.
post #202 of 1055
Quote:
Originally Posted by Usario View Post

4.5GHz GDDR5 is highly unlikely. That would mean literally no bandwidth increase over the 7970 GHz Edition. And, seriously, 6GHz ICs are everywhere these days, and cards like the 770 are even using 7GHz stock ICs.

TPU's database of upcoming GPUs has never really been anything more than a mish-mash of prevalent rumors anyway.
They might be gunning for better latency though. Possible other advantages being lower voltage and mosfet driver requirements plus heat quota, why on earth not?
First successful 512 bit video card to be following in 2900xt's path, they better be right.
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post #203 of 1055
Thread Starter 
Quote:
Originally Posted by Thunderclap View Post

Any facts on this? rolleyes.gif I'm sure not, because there isn't a GCN 2.0 on the market yet. The HD 7790 running on GCN 2.0 is/was purely a missconception, it was never something official from AMD, more like an slightly improved GCN 1.0, even AnandTech named it GCN 1.1 and that was made up. This was said over and over in this thread, but some people yet struggle to understand it... The new R-series cards will be the first official cards from AMD that will run GCN 2.0 and it is confirmed from AMD themselves.

You are correct. Since there are no GCN 2.0 cards on the market the correct statement would be:

Has not been proven to do anything at all.

However assuming that it gets better perf/watt is a reasonable assumption which is why I'll stick to my original statement due to the 7790. GCN 2.0 actually improving per core performance on the other hand is pure speculation.
Quote:
Originally Posted by mtcn77 View Post

They might be gunning for better latency though. Possible other advantages being lower voltage and mosfet driver requirements plus heat quota, why on earth not?
First successful 512 bit video card to be following in 2900xt's path, they better be right.

They're gunning for efficiency at the cost of some added die size.

Also GT200 and GT200b were pretty successful...
 
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post #204 of 1055
Quote:
Originally Posted by mtcn77 View Post

They might be gunning for better latency though. Possible other advantages being lower voltage and mosfet driver requirements plus heat quota, why on earth not?
First successful 512 bit video card to be following in 2900xt's path, they better be right.

They could be getting better latency (dunno how significant) and less heat from the VRAM. I don't see how that makes up for all the die space they'd be wasting and all the implications associated with that.
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post #205 of 1055
Quote:
Originally Posted by wertmur View Post

5mln transistors, 2560 sp, low clocks.... not impressive
If it matches 780 with low clock it will be a win especially since it also is a way smaller die.
post #206 of 1055
Quote:
Originally Posted by Alatar View Post

You are correct. Since there are no GCN 2.0 cards on the market the correct statement would be:

Has not been proven to do anything at all.

However assuming that it gets better perf/watt is a reasonable assumption which is why I'll stick to my original statement due to the 7790. GCN 2.0 actually improving per core performance on the other hand is pure speculation.

Better perf/watt is probably almost guaranteed that it is improved upon, yet I believe AMD had plenty of time to work on it and make it better on a purely performance standpoint. I don't expect GCN 2.0 alone to be something groundbreaking and add tons and tons of performance gains, but I do expect it to give a nice bump to per core performance while improving on the perf/watt ratio, which IMO is pretty import for a power-hungry high-end graphics card. thumb.gif
post #207 of 1055
Quote:
Originally Posted by Offler View Post

2. 512bit bus
Also makes sense. Somebody came with an idea that "Tahiti is slow on 4k" (cant test, such displays are not available here). 512bit bus with 4gb Vram will add enough performance for more displays in Eyefinity or on Higher resolutions.
AMD cards are superior on 4K resolution though.
I know.
post #208 of 1055
512 bit bus!!!! I'm interested!
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post #209 of 1055
Quote:
Originally Posted by Alatar View Post

I still haven't gotten an answer for this after many threads so I'll ask once again.

Hawaii is likely to have:

-25% more SPs (37.5% more being an extremely unlikely and remote possibility)
-50% more ROPs

Than Tahiti. Neither design will be memory bandwidth bottlenecked.

In order to beat a Titan Hawaii would have to improve clock for clock perf over the 7970 by over 40%.

And on top of that it would have to clock higher than the Titan when even the smaller Tahiti can't do that.

How do these things equal a Titan killer? Where exactly is the sense behind the assumption?

Not claiming its gunna be a titan killer, but do question one thing. GK104 is smaller then GK110, yet gk110 clocks higher, right? Is that only b/c of the recent voltmod'd bios'? Or GK110 being a newer chip on TSMC 28nm. Who says the process wont be tweaked enough to let Hawaii clock higher?
post #210 of 1055
Thread Starter 
Quote:
Originally Posted by maarten12100 View Post

AMD cards are superior on 4K resolution though.
I know.

Recent guru3d benches show a bigger difference between GK110 cards and Tahiti at 4K than conventional resolutions. And AMD does not have a working multi-GPU solution for 60Hz 4K yet so I doubt that this statement is true.

Quote:
Originally Posted by Yeroon View Post

Not claiming its gunna be a titan killer, but do question one thing. GK104 is smaller then GK110, yet gk110 clocks higher, right? Is that only b/c of the recent voltmod'd bios'? Or GK110 being a newer chip on TSMC 28nm. Who says the process wont be tweaked enough to let Hawaii clock higher?

It's only because of the increased voltage. At the same voltage GK104 easily clocks higher than GK110.
 
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