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[VC] AMD Radeon R9 290X with Hawaii GPU pictured, has 512-bit 4GB Memory - Page 11

post #101 of 1055
79 vs 100 = 1 vs 1.27
7770 + 27% = 7790
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post #102 of 1055
Quote:
Originally Posted by Stay Puft View Post

Lets call it 21%





Also it's using 2.0. Google it. My search returned pages and pages of links stating the 7790 uses 2.0

http://www.overclockersclub.com/news/33850/
http://www.tomshardware.com/news/AMD-Radeon-7790-Saturn-GPU,21447.html

The 7770 being 21% slower does not translate to the 7790 being 21% faster... It translates to the 7790 being 26.5% faster.
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post #103 of 1055
The 7790 uses GCN 1.1, not 2.0. Those sites are incorrectly labeling it. Anandtech did a whole piece on Bonaire when it was released.
     
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post #104 of 1055
Quote:
Originally Posted by SoloCamo View Post

I don't understand how these conclusions are made when we truly don't have official specs. Besides, 7970GE's still are competitive with 780's as is in a good portion of games (yes, clearly the 780 is faster overall, but it's not leaps and bounds by any means and gets matched or beaten in some situations - http://anandtech.com/bench/product/768?vs=827).

The point I'm trying to make is how old the 7970 is in terms of GPU tech, I see no less than a 780 performance wise stock vs stock. Anything less would be a waste for them. If this 512bit bus is true, who knows what else may be in store for these gpu's. Some act as if Nvidia is the only one who does any R&D when in reality Titan's performance level is not godly and unreachable....especially considering how long AMD has had to come up with a new generation. Maybe I'm biased here but I feel when we look back in a few years the 7970 is going to be heralded much like the 8800gt was IMO, especially considering it's lifetime and constant improvements.

Did you ever wonder why it took so long for AMD to introduce a new card after 7970? Simply because AMD's resources are focused on other markets that it views as growth markets. mobiles, consoles, clouds, etc. AMD will do whatever it can to continue to deliver performance for value for the desktop video cards, but we can't look at it in isolation. If the price/performance is too out of market . ie, undercuts Nvidia significantly on price, Nvidia will respond immediately by accelerating plans for its own new releases at lower prices. Its absurd to think that Nvidia has been sitting on its laurel in terms of R&D, and they have a much bigger spend than AMD. All in all, this is a good thing for consumers, and I am delighted that AMD is finally developing and releasing new discrete gpus.
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post #105 of 1055
Quote:
Originally Posted by sdlvx View Post

384GB/s theoretical bandwidth in this card.

GK104 has 192GB/s and loses to 150GB/s 7870 at 1080p with 8xMSAA when you benchmark for VRAM bandwidth.

http://www.tomshardware.com/reviews/tahiti-le-7870-7930-benchmark,3401-4.html

It's not vram bandwidth. If it was, the 660ti would lose worse to the 7870 at 1440p than it does at 1080p. Instead, the 660ti wins at 1440p.
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post #106 of 1055
Quote:
Originally Posted by sdlvx View Post

384GB/s theoretical bandwidth in this card.

GK104 has 192GB/s and loses to 150GB/s 7870 at 1080p with 8xMSAA when you benchmark for VRAM bandwidth.

Really ? thinking.gif

I though It was a driver issue that has been resolved back in February...

http://www.tomshardware.com/reviews/tahiti-le-7870-7930-benchmark,3401-4.html

With the new test GTX 670 is better than 7870 and even the 800 MHz 7950 with 8x MSAA.
Edited by HeadlessKnight - 9/21/13 at 12:33pm
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post #107 of 1055
Thread Starter 
Quote:
Originally Posted by sdlvx View Post

It's over, Nvidia is relegated to 1080p rig status. This is probably going to be the only thing remotely capable of pushing 1440p and better on next gen console ports. This thing is gonna have 100GB/s more theoretical over GTX 780, and as Tom's showed in their "testing for bandwidth limitations" review Nvidia theoretical bandwidth isn't close to AMD theoretical bandwidth.

I hope this is sarcasm because if it isn't then it makes no sense. And as we all know the 2900XT with it 512bit bus ended up being the only thing able to drive 1080p...

512bit bus takes space. Only reason to go with it over a 384bit one is to clock the memory lower and increase efficiency, something Nvidia is killing AMD in for the HPC market. 512bit bus is a move trading die space for lower clocks giving you higher efficiency but also higher manufacturing costs.

And we've yet to see how the IMC on Hawaii is. Kepler's IMC is teriffic, I can drive 1950MHz memory on my Titan. That's 7800MHz effective. And error correction kicking in isn't even a worry at that point.

As for the other stuff, Tahiti already has enough memory bandwidth. GK110 has mostly enough memory bandwidth. Even if the SPs scaled linearly with Hawaii it will not have the clock for clock performance to beat GK110 cards because they will clock higher. And we all know that SPs do not scale linearly...

Once again everyone is just setting themselves up for a disappointment yet again. I'll buy one if it's faster than a Titan at max OCs but I'm afraid that the numbers and math do not support that conclusion at all. They never have. So unless AMD suddenly pulls some miracle chip with higher density than ever seen before on 28nm and tons of architectural improvements, it's not happening. That's why the pricing rumors are what they are. These cards wont match highly OC'd 780s or Titans and they're unlikely to match them at stock either since AMD was touting their efficiency and performance for the specific die size instead of just pure performance.

Clocked low, high efficiency OCs well but unfortunately for them can't match GK110 clock for clock and GK110 clocks higher. Maybe getting performance wins when GK110 throttles back to base boost clocks or base clocks.
 
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post #108 of 1055
Quote:
Originally Posted by provost View Post

Did you ever wonder why it took so long for AMD to introduce a new card after 7970? Simply because AMD's resources are focused on other markets that it views as growth markets. mobiles, consoles, clouds, etc. AMD will do whatever it can to continue to deliver performance for value for the desktop video cards, but we can't look at it in isolation. If the price/performance is too out of market . ie, undercuts Nvidia significantly on price, Nvidia will respond immediately by accelerating plans for its own new releases at lower prices. Its absurd to think that Nvidia has been sitting on its laurel in terms of R&D, and they have a much bigger spend than AMD. All in all, this is a good thing for consumers, and I am delighted that AMD is finally developing and releasing new discrete gpus.


...But the resources of the CPU division and the GPU division are independent of one another, at least I thought.
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post #109 of 1055
Quote:
Originally Posted by Edge Of Pain View Post

...But the resources of the CPU division and the GPU division are independent of one another, at least I thought.

At the end of the day, it all comes from the same piggy bank...giving more to one means less to the other
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