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Old March 16, 2010, 06:23 AM
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It is still a 512 core design. No matter what, every die that rolls off the production line has 512 cores. How many of those cores will be enabled in each SKU is open for debate however.
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Old March 16, 2010, 06:27 AM
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So technically there is a way to "unlock" these cores?
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Old March 16, 2010, 06:31 AM
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Quote:
Originally Posted by belgolas View Post
Instead ATI is charging rediculous prices currently. .
At first i tough also that ATI overprise their card, but they also have a problem of production, it's not easy to find a 5970 in stock.. so if it's true, it will be the same with the Fermi, so we can expect high price.
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Old March 16, 2010, 06:36 AM
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So technically there is a way to "unlock" these cores?
No. They are "cut" and are not accessible. As are their associated TMUs. Also, when you take yields into the equation, some CUDA cores will simply not work which is why it is financially viable to release lower-end cards based on cores from the same wafer as the higher end ones.
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Old March 16, 2010, 06:48 AM
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Originally Posted by SKYMTL View Post
. Also, when you take yields into the equation, some CUDA cores will simply not work which is why it is financially viable to release lower-end cards based on cores from the same wafer as the higher end ones.
I always find funny the way Intel, Amd , and now Nvidia in this exemple sell they manufactured defects at lower price. WE CUT THE DEFECTIVE PART OF IT. but in the other hand , if they don't do it, the highend one will cost way more.
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Old March 16, 2010, 06:50 AM
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Originally Posted by SKYMTL View Post
No. They are "cut" and are not accessible. As are their associated TMUs. Also, when you take yields into the equation, some CUDA cores will simply not work which is why it is financially viable to release lower-end cards based on cores from the same wafer as the higher end ones.
Interesting, I thought it work like AMD CPU's cores, I should probably read more about this.
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Old March 16, 2010, 08:53 AM
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well it would be nice to have masked units like in the past, but i guess they learned(?). altough if they rush things we may see something...or not :)
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Old March 16, 2010, 09:18 AM
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Originally Posted by MrDiaz View Post
Interesting, I thought it work like AMD CPU's cores, I should probably read more about this.
GPU manufacturers have been physically disabling extra cores/pipelines for years now. The last cards that you could really unlock were the nVidia 6800 series and ATI X800 series (some people here probably remember the legendary Sapphire X800 GTO2 which was specifically designed to be unlocked to 16 pipelines which provided performance close to the X850 XT).
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Old March 16, 2010, 09:23 AM
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There were also some BFG 7900 GT (or was it GS) cards that could unlock.
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Old March 16, 2010, 09:32 AM
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Originally Posted by SKYMTL View Post
There were also some BFG 7900 GT (or was it GS) cards that could unlock.
I didn't remember that, but I looked it up and there were in fact some 7900GS cards that could unlock to 24/5. It was not the 7900GT, since that card was just a lower-clocked full-featured G71 core.
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