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AMD To Launch RV770 On June 18th

what i thought they are 512 bit not 256 :confused: they have less tmu's then nvidia for example maybe memmory would compensate that different but 256 nahh for get it we need 512 bit that works properly roar power
 
Gerard said:
The spec are only unconfirmed specs though, sites usually do put up stuff like this to get some attention =/
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The mem situation is confirmed. I dought we will know the specs until a week before release now that Nvidia have shown theirs (apart from clock & mem speeds). AMD are prolly wetting them selves at the minute to be honest.
 
psychas said:
they have to pull something out of the back if its not to late i think the cards might be in production now hope they are 512 bit
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Indeed.


But still 1gb of GDDR5 on 256 bit still offers a kick ass amount of bandwidth. Though depending on how good the card is itself it could be a wastefull amount.
 
Lightnix said:
Apparently the GDDR5 is gonna be clocked at around 3.9GHz DDR, that means that it has more bandwidth on its 256-bit bus than the 2900 XT did on its 512-bit bus.

That is assuming these guys are correct (again):

http://www.nordichardware.com/news,7755.html
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Well thats basically confirmed.


AMD have said that they have gone to Qimonda for GDDR5 and they make them at 3.6 GHz, 4.0 GHz, and 4.5 GHz clock speeds. And infact the chips have already been shipping in volume to AMD.
 
Another confirmation here

AMD today announced the first commercial implementation of Graphics Double Data Rate, version 5 (GDDR5) memory in its forthcoming next generation of ATI Radeon graphics card products. The high-speed, high-bandwidth GDDR5 technology is expected to become the new memory standard in the industry, and that same performance and bandwidth is a key enabler of The Ultimate Visual Experience, unlocking new GPU capabilities. AMD is working with a number of leading memory providers, including Samsung, Hynix and Qimonda, to bring GDDR5 to market.

Today's GPU performance is limited by the rate at which data can be moved on and off the graphics chip, which in turn is limited by the memory interface width and die size. The higher data rates supported by GDDR5 - up to 5x that of GDDR3 and 4x that of GDDR4 - enable more bandwidth over a narrower memory interface, which can translate into superior performance delivered from smaller, more cost-effective chips. AMD's senior engineers worked closely with industry standards body JEDEC in developing the new memory technology and defining the GDDR5 spec.

"The days of monolithic mega-chips are gone. Being first to market with GDDR in our next-generation architecture, AMD is able to deliver incredible performance using more cost-effective GPUs," said Rick Bergman, Senior Vice President and General Manager, Graphics Product Group, AMD. "AMD believes that GDDR5 is the optimal way to drive performance gains while being mindful of power consumption. We're excited about the potential GDDR5 brings to the table for innovative game development and even more exciting game play."

The introduction of GDDR5-based GPU offerings marks the continued tradition of technology leadership in graphics for AMD. Most recently AMD has been first to bring a unified shader architecture to market, the first to support Microsoft DirectX 10.1 gaming, first to lower process nodes like 55nm, the first with integrated HDMI with audio, and the first with double-precision floating point calculation support.

AMD expects that PC graphics will benefit from the increase in memory bandwidth for a variety of intensive applications. PC gamers will have the potential to play at high resolutions and image quality settings, with superb overall gaming performance. PC applications will have the potential to benefit from fast load times, with superior responsiveness and multi-tasking.

"Qimonda has worked closely with AMD to ensure that GDDR5 is available in volume to best support AMD's next-generation graphics products," said Thomas Seifert, Chief Operating Officer of Qimonda AG. "Qimonda's ability to quickly ramp production is a further milestone in our successful GDDR5 roadmap and underlines our predominant position as innovator and leader in the graphics DRAM market."

GDDR5 for Stream Processing
In addition to the potential for improved gaming and PC application performance, GDDR5 also holds a number of benefits for stream processing, where GPUs are applied to address complex, massively parallel calculations. Such calculations are prevalent in high-performance computing, financial and academic segments among others. AMD expects that the increased bandwidth of GDDR5 will greatly benefit certain classes of stream computations.

New error detection mechanisms in GDDR5 can also help increase the accuracy of calculations by indentifying errors and re-issuing commands to get valid data. This capability is a level of reliability not available with other GDDR-based memory solutions today.

Source:
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Azza said:
The mem situation is confirmed. I doubt we will know the specs until a week before release now that Nvidia have shown theirs (apart from clock & mem speeds). AMD are prolly wetting them selves at the minute to be honest.
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There's been a few reports around the internet about AMD's orders of GDDR5 to work on a 512MB interface, and AMD have also reportedly confirmed their use of GDDR5 too, it's over at TPU.

Edit - Looks like I've misread something, either way a 256 bit interface with high speed GDDR5 will make for high bandwith, higher than a 2900 I think, so it shouldn't really matter at all.
 
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Owenb said:
Yes it is much lower than nvidia's. However i think that nvidia use TMU's for AA while AMD use the SP so they probably don't need as many- might be wrong on that. From what we have seen on price/wattage AMD can't compete on performance any more and are trying to design a card that will get contracts with Dell/HP etc. Lets hope it works for them.
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AMD said some time ago that they aren't interested in making mega-performance cards... For them it's now about the value alternative, with better power consumption and bang for buck than ATi.

In other news, 5x the bandwith of GDDR3??? wow... i hope these cards can really make use of that
 
-iceblade^ said:
AMD said some time ago that they aren't interested in making mega-performance cards... For them it's now about the value alternative, with better power consumption and bang for buck than ATi.

In other news, 5x the bandwith of GDDR3??? wow... i hope these cards can really make use of that
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And you believe them? That was just spin for the fact that their last chip was poorly designed. They were saying that after the 2900XT, yet the 2900 was not only slower but had terrible power consumption with a similar die size and a larger, more expensive 512bit bus.
 
Owenb said:
And you believe them? That was just spin for the fact that their last chip was poorly designed. They were saying that after the 2900XT, yet the 2900 was not only slower but had terrible power consumption with a similar die size and a larger, more expensive 512bit bus.
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Larger die size ;), also, they ended up being great cards once they shrunk the die and they became the 3800s.
 
no fuss guys i do not mind of the correction i was still in bed with laptop while writing it :) so what do you think will 4870 will be more then 200£ or less ?
 
Sitting here with me old 7800gtx i am looking forward to these new ati cards. Maybe they won't be as powerful as nvidia but i doubt i will have that sinking feeling after 3 months as my high end card goes rapidly down in price and performance so balances out. It's win win for me as whatever the 4870 is like i gaurantee it is a lot better then what i have now :D.
 
psychas said:
so what do you think will 4870 will be more then 200£ or less ?
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If I had to take a guess (and I'm pulling these numbers out my arse as much as the next guy :p ) I'd say around £200 for the 4870. Maybe closer to £250 on release, if availablity is a problem.

For the nvidia GT200 cards, I'd say around £450-£475 for the 280, and around £350-£375 for the 260.
 
RV770 cooler scratches


RV770XTcooler.jpg


RV770ProCooler.jpg
 
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