back to article Nvidia to stack up DRAM on future 'Volta' GPUs

Nvidia wants to own an ever-increasing part of the computing racket and will be adding 3D memory stacking to its future graphics processors to make them more power-efficient and to boost their performance. Jen-Hsun Huang, co-founder and CEO at Nvidia, outlined the company's plans to used stacked DRAM on future graphics chips …

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Anonymous Coward

Too hot guv ...

> It doesn't look like Nvidia is going all the way and stacking memory chips and wiring them up directly on top of the future GPU processor

Sure you can stack RAM on top of your main SoC, but getting out 100W of heat though the DDR substrate which is in the way becomes a challenge (and RAM doesn't like being that hot).

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Volta did not invent the battery

There was a battery of mass destruction in Baghdad in 250BC.

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Anonymous Coward

"Last Fall"

Did someone lose their balance? What is this "fall" of which you speak?

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"Huang said that the future Volta GPUs would have an aggregate of 1TB/sec (that's bytes, not bits) of bandwidth into and out of the stacked DRAM, and added that this would be enough to pump an entire Blu-Ray DVD through the memory in 1/50th of a second."

You were OK until you mentioned "an" entire Blu-Ray DVD. The big caveat to this massive bandwidth is that a single component only sees a tiny fraction of it. It would be more accurate to say that if you happened to have a DVD already divided into several thousand shards then you could stream each shard past a different (and isolated) processing unit in that fiftieth of a second. Obviously that's less impressive. Actually processing that data as a coherent whole will take longer.

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