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Hamletxi
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re: Apple, Nvidia may stack graphics for Macs, iPads
Hamletxi   12/20/2012 12:59:48 AM
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I think the time for Apple or Intel to use Nvidia graphics seems over. Imagination Technologies PowerVR graphics have cornered mobile graphics. If more than 50% of Apple revenue is iphone why would they need Nvidia. Also they could have bought IT or Nvidia years ago. Why would they switch to Nvidia? The Apple chips are in gen 6. If Apple were to truly control everything it would need to make their own core and own graphics. Only buying Nvidia would give it full control. What is the major benefit?

chipmonk0
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re: Apple, Nvidia may stack graphics for Macs, iPads
chipmonk0   12/19/2012 4:17:59 PM
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3D stacking was oversold as the " More than Moore " panacea before key technical / logistic / biz issues were even comprehended. There is some PR going on here to keep people interested.

markhahn0
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re: Apple, Nvidia may stack graphics for Macs, iPads
markhahn0   12/19/2012 5:37:48 AM
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ugh. it would be so much more imaginative to use stacking to create a lower-power module containing compute and memory. imagine a smallish chip dissipating maybe 50W, but which can gluelessly be tiled with a bunch more such chips. a 1U node containing, say, 16 of these would be pretty awesome, and a data-parallel programming model like Cuda could leverage it pretty well...

Kresearch
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re: Apple, Nvidia may stack graphics for Macs, iPads
Kresearch   12/19/2012 2:52:22 AM
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Take it easy. It is just rumor and speculation. Let's wait and see the mass production date arriving. Soon? I doublt it.

anon3860072
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re: Apple, Nvidia may stack graphics for Macs, iPads
anon3860072   12/19/2012 12:55:42 AM
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Nvidia's philosophy has been to use brute force to implement graphics. In contrast, ATI (AMD now) took the other approach and arguably offered the best mobile graphics in the past. Just imagine the steam (i.e. heat) coming off the Nvidia graphics cores inside the 3D package. Unless there is a liquid nitrogen pipe going through the 3D package, or unless 5nm is made available to Nvidia and Apple assuming the current transistor count, this rumour is simple a pipe dream!

Bond Number
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re: Apple, Nvidia may stack graphics for Macs, iPads
Bond Number   12/18/2012 5:16:11 PM
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Nvidia + packaging = trouble Remember the bump issues during 2008 time frame

tangey
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re: Apple, Nvidia may stack graphics for Macs, iPads
tangey   12/18/2012 3:32:13 PM
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Nvidia does not have any graphics IP that can compete with SGX554MP$ in the current ipad, in terms of performance/area/power. 1st half of next year, we are likely to see Apple implement IMG's next gen graphics, rogue, which will increase processing performance considerably. Nvidia have failed to be leading edge in soc tech, despite throwing $100s millions at it, securing only a tiny market share. Just because they can technically do what you are postulating, doesn't mean they have a better overall solution to what is already out there.



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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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