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[Toms] Nvidia's Tegra Kal-El Will Be 40 nm, Not 28 nm - Page 2

post #11 of 16
System On a Chip and Multi Chip packages are a BEAR to produce. They can't even pull of a 32nm of this yet and my guess is 40nm will be a brawl to even do. I bet ya nobody even comes out with a 40nm chipset this year that isn't super high end limited production.
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post #12 of 16
Quote:
Originally Posted by Hephasteus View Post
System On a Chip and Multi Chip packages are a BEAR to produce. They can't even pull of a 32nm of this yet and my guess is 40nm will be a brawl to even do. I bet ya nobody even comes out with a 40nm chipset this year that isn't super high end limited production.
Tegra 2 is 40nm, so whats your point? There is no doubt in my mind that nVidia charges a premium over Qualcomm and TI for their processors, but still $200 phones..
post #13 of 16
It's actually 39.5nm, but who's counting...
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post #14 of 16
Quote:
Originally Posted by FtL1776 View Post
Tegra 2 is 40nm, so whats your point? There is no doubt in my mind that nVidia charges a premium over Qualcomm and TI for their processors, but still $200 phones..
My point is yields and production of these are going to suck. The only thing saving them is that they are so small they can fit so many on a wafer. That alone mitigates the yield loss. Memory has very few process it has to go through, cpu's have middle amount, gpu's have a bunch of steps involved and mcp and system on a chip has the most amount of processes to go through. It's time consuming and creates a bunch of trash chips. The only thing saving them is a dead market. No matter how much everyone lies about sales the market is dead.
Nvidia can yammer up 28 nm and put it on a roadmap but until ram goes through it, cpu's go through it, gpu's go through it, they aren't even going to try chipsets or systems on a chip. Tegra 2 was supposed to start showing up last christmas now it's spring. My guess is we won't see hardly any of them till late summer.
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post #15 of 16
So 40nm process technology is absolutely the right approach. It is the most mature, and we can go into very high [volume] production very quickly because the yields are so great."

Nvidia CEO
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post #16 of 16
I think 40nm is still too big. I don't think that the extra cores are the problem though (they only take up a fraction of the SOC anyway); I think that the problem is that 3x faster graphics. It will have to be physically bigger (I would assume 2x the size give or take). This isn't a problem on a smaller fab, but I think it will hit hard on 40nm (die shots show that the current graphics is around 1/4 of the chip.

Another huge issue is software. Android, iOS, and WP7 (from what I've read) aren't programmed for dual core processors, let alone quad core processors (I suppose this is where I say that Meego was designed from the ground up to use multi-core processors).

Die shot of Tegra 2:
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Overclock.net › Forums › Industry News › Hardware News › [Toms] Nvidia's Tegra Kal-El Will Be 40 nm, Not 28 nm