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[VC] AMD Radeon R9 290X with Hawaii GPU pictured, has 512-bit 4GB Memory - Page 9

post #81 of 1055
Quote:
Originally Posted by Usario View Post

512-bit... drool.gif

it's over nvidia is finished.

There's more to life than bus width.

I wonder if using a 512-bit bus and slower VRAM lets them keep the card cost down and that's why they went that way. Or if they couldn't scale the 7970 memory controller to 7000MHz speeds and so they had to move for that reason. Or maybe this is another "designed for smaller process but shoe-horned into the current one" part. Or maybe they saw how much forum cred they got for having 3GB of VRAM compared to the 2GB of the GTX 680 and decided to roll with that again this time.
post #82 of 1055
Quote:
Originally Posted by Phelan View Post

I'm not sold that the 7790 is the real gcn 2.0. If it is, I could see the R9 having GCN 3.0 then, since I'm pretty confident there will be more improvement to the arch on this node. Not to mention the 7970 is ROPs bottlenecked, no SP bottlenecked, so extra ROPs will add more boost than the SPs anyway.

Well AMD did say they would release a new architecture at the end of 2013, so perhaps these will use a new iteration of GCN.
http://www.overclock.net/t/1361021/hardwarecanucks-amd-clarifies-2013-graphics-strategy-new-cards-same-architecture-some-surprises
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post #83 of 1055
Quote:
Originally Posted by mcg75 View Post

I remember a video with a panel of AMD people being asked about Titan and they bashed the Titan as a compute card being released as a gaming card.

Now here they are doing it themselves.

amd is pretty good at bashing other companies, then doing the same thing themselves, or just failing miserably.
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post #84 of 1055
Not gonna beat the Titan. Let's move on.....
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post #85 of 1055
Finally a rumor with real evidence. Even if it doesn't turn out to be a great competitor for the 780, 4GB on a 512 bit bus is nice for e-peen. biggrin.gif
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post #86 of 1055
Quote:
Originally Posted by szeged View Post

amd is pretty good at bashing other companies, then doing the same thing themselves, or just failing miserably.

If they put as much effort into product as taking shots at Intel and Nvidia, they'd probably have more market share and wouldn't need PR stunts like the silly potato chip thing.
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post #87 of 1055
Never thought they'd go 512-bit, considering Titan is still 386-bit. But yeah, maybe using a 512-bit bus will allow them to simplify the memory controller and use lower speed GDDR5 than they did with Tahiti. I assume having a 420-430 mm chip makes that a reasonable compromise.

It's funny though how like the 2900XT this release seems to be. New naming scheme, 512-bit memory bus, >400mm^2 chip... tongue.gif
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post #88 of 1055
Quote:
Originally Posted by Stay Puft View Post

7790 uses GCN 2.0. 7790 has 40% more shaders then a 7770 and is only 20% faster then it. I'm sorry guys. This isnt a titan killer. Its not even a 780 killer

The 7790 uses GCN 1.1 and is severely limited by memory bandwidth and ROPs.

Also, it's more like 30% faster.
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post #89 of 1055
Quote:
Originally Posted by Usario View Post

The 7790 uses GCN 1.1 and is severely limited by memory bandwidth and ROPs.

Its not even GCN 1.1 .Anandtech used that name .

http://www.anandtech.com/show/6837/amd-radeon-7790-review-feat-sapphire-the-first-desktop-sea-islands/2
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post #90 of 1055
new architecture, 4 ROPs, 2560 (or 2816) SPs, 512-bit bus... It's going to at least beat the 780. I kinda wish it wasn't true because it's giving me tons of buyers remorse over my dual watercooled 7970s that I dropped $850 just 3 months ago (because I bet against the Hawaii series and underestimated AMD), but now I already wanna dump them asap so i can get one of these... I know the raw power of dual 7970s will be better than this 290X but I know the 290X will be a smoother experience and the observable frame rates will be about the same due to the frame pacing issues of the CFX 7970s, even after the "frame pacing fix".


AMD is taking this GPU as far as they possibly can on 28nm. Even though the process size is the same as Tahiti, they are still making it a product worthy of being called a new generation.

Also, I really like the look of that cooler. I hope its the final version.
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