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[dvHW] ATI RV770 PRO has 256-bit memory bus - Page 3

post #21 of 38
oO That seems a little ridiculous... Wouldn't the RV770 core have to, well to say it bluntly, absolutely ridiculous to even come close to utilizing the absurd bandwidth that a 512bit interface with 4ghz gddr5 would produce?
1. I don't think the RV770 is that powerful
2. I think ATi learned with the 2900XT, and their engineers aren't dumb enough to do it again.
3. Here's hoping that if there is a card in existence with 512bit and GDDR5 that it's only an ultra type card, and that it will just be there to compete with nvidia's super high end, which I could honestly see. But I don't know if they have the money for the R&D and implementation of such a card, along with a full line.

Sounds far fetched overall..
    
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post #22 of 38
Whats the point? GDDR5 + 256-bit bus would still break (or at least match) the 2900PRO/XT bandwidth and that was alot already. Seems like a waste of PCB layers.
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post #23 of 38
If you follow all the links back, The original poster of this was Fudzilla. Anyways DDR5 plus a 512bit bus just doesn't make sense in my opinion.
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post #24 of 38
They must have a serious core to even think they would use half that bandwidth!
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post #25 of 38
Quote:
Originally Posted by Licht View Post
They must have a serious core to even think they would use half that bandwidth!
They doubled the TMUs and gave it a 1/2th more(160) SPs.
post #26 of 38
Quote:
Originally Posted by RussianGrimmReaper View Post
They doubled the TMUs and gave it a 1/2th more(160) SPs.
I think allot of it will be about the architecture changes.
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post #27 of 38
Quote:
Originally Posted by Licht View Post
I think allot of it will be about the architecture changes.
Almost identical architecture last I heard. They had to change the memory controller and regroup the SPs, besides that it should be the same.
post #28 of 38
Quote:
Originally Posted by RussianGrimmReaper View Post
Almost identical architecture last I heard. They had to change the memory controller and regroup the SPs, besides that it should be the same.
Shader clock is not dependent on core clock now.
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post #29 of 38
Quote:
Originally Posted by Somenoob View Post
Shader clock is not dependent on core clock now.
I was aware of that but it seems like there was something else too...
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post #30 of 38
The XT is not going to have a 512-bit memory bus.
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