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Why do NVIDIA and ATI lock cores? - Page 2

post #11 of 21
They were originally indistinguishable, manufactured the same way, at the same cost.
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post #12 of 21
Quote:
Originally Posted by MinitroN View Post
Why would you assume something so stupid.
here's an idea, you don't have anything useful to say then don't post, nuff said
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post #13 of 21
Quote:
Originally Posted by Fx4 Mike View Post
580 chip is different than a 570 chip..... (i think unless i'm completly wrong)

6950 and 6970 have same chip
Quote:
Originally Posted by Fx4 Mike View Post
Well if one is laser cut to prevent the use of extra cuda cores then wouldn't the be different...

They started as the same chip then the 570 was laser cut, which technically makes it a diff chip
They are both GF110. Judging by your criteria above RE: HD 69xx series, they are the same chip.

Quote:
Originally Posted by Blameless View Post
They were originally indistinguishable, manufactured the same way, at the same cost.
This.
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post #14 of 21
Quote:
Originally Posted by Blameless View Post
They were originally indistinguishable, manufactured the same way, at the same cost.
Bingo. They'd have a hard time getting people to overpay so much for the 580 if they didn't laser cut, lol. Oddly enough, the laser cutting process probably costs them more money, so a 570's gpu might (ironically) cost more to make than a 580.
    
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post #15 of 21
AMD does the same thing with their chip, they disable non-working cores and sell them as a different CPU (which is why some can be unlocked to fully functional Tri's and Quads) for a lower price, to appeal to a lower-budget market. Nothing wrong with it.

If they didn't lock cores, everybody would be buying cheap cards and unlocking them. Can you see how much revenue they would lose?
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post #16 of 21
Quote:
Originally Posted by Erick View Post
Why do you need to be rude with him, it's a valid question.

I think they lock the cores, so that they can sell the card for less money and less performance, to get to every niche of the market.

But not all gpu cores a locked down from the flagship, so are made like that.
You just answered your own questions.

HD555s and HD595s are the same headset. One has foam in it to retard the sound. It's also $100 cheaper.
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post #17 of 21
Along w/having less cores, typically also the lower-end cards won't need to be built using as 'high-end' of components (less power stages, for example, or memory with worse timings ... for examples, see the 570 and 6950).

Typically when disabling the HW units, the power draw will become lower, so the 2nd-tier card will require less in the way of PSU juice, and PCI-Ex connectors ... which then makes them compatible with more PSU's.

So the card makers end up saving money elsewhere on the lower end card, plus they typically will end up selling more of them due to the lower price point ... this all makes it so that the 'loss' of profit caused by disabling some hardware units is mitigated.
    
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post #18 of 21
Did some cleanup on this thread ... some of your posts may be slightly edited to remove the offending material.

Next time guys, you know the rules ... alert, don't quote/reply
Edited by brettjv - 8/8/11 at 10:37am
    
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post #19 of 21
Market segmentation.

Even though it costs the same to produce, they will not be able to sell all at the premium price. Therefore companies can do one of two things.... sell everything at a lower price or seperate the product to price at different market ranges.


Quote:
Originally Posted by Steven-1979 View Post
Bingo. They'd have a hard time getting people to overpay so much for the 580 if they didn't laser cut, lol. Oddly enough, the laser cutting process probably costs them more money, so a 570's gpu might (ironically) cost more to make than a 580.
Naw, laser cutting only costs a penny or so.

The GTX570 has weaker components and one less plug.
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post #20 of 21
Quote:
Originally Posted by brettjv View Post
So the card makers end up saving money elsewhere on the lower end card, plus they typically will end up selling more of them due to the lower price point ... this all makes it so that the 'loss' of profit caused by disabling some hardware units is mitigated.
Are you referring to the lower quality components manufacturers use to fill out the rest of the video card like the VRM's on the reference 570's which carry the reputation of being very easy to overwork and burn up?

Quote:
Originally Posted by DuckieHo View Post

Naw, laser cutting only costs a penny or so.

The GTX570 has weaker components and one less plug.
They probably laser cut the core down to a 570 whenever they are doing the original cut out from the die. Its likely just a matter of the cad operator drawing an extra line into the cut out file.
I wonder if chip engineers have to design their chips with cutout channels for the laser to run through. And like on the AMD X2 555's do they always disable the same 2 cores or does it vary?
Edited by cook - 8/8/11 at 10:54am
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