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Technology Stocks : Advanced Micro Devices - Moderated (AMD)
AMD 222.48+3.9%10:46 AM EST
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To: pgerassi who wrote (215025)10/26/2006 8:41:15 AM
From: eracerRead Replies (2) of 275872
 
Re: You continue to use bad estimates for the size of a GPU using AMD64 grade processes. Since the AMD 65nm ssSOI process used to make DC and soon QC K8Ls generates DC CPUs at more than 2GHz using less than 35W including twin 72bit DDR2 controllers, you don't need as many pipelines as you would for GPUs on bulk 90nm processes that run only 500MHz or so. 1/4 the number of 2GHz pipelines will have the same performance. A mid range GPU of today with 12 pipelines at 500MHz could be done with just 3 pipelines at 2GHz. They would use about 1/4th of the die area at 90nm and 1/8th at 65nm ssSOI at likely less power as well.

You continue to use bad estimates for GPU clock speed. I suppose you assume AMD just bought a bunch of dummies because ATI and NVIDIA clock speeds top out in the 600-700MHz range at 90-nm while AMD was doing 2.2GHz and Intel was doing 3.4GHz with 130-nm bulk silicon ages ago.

And I suppose AMD engineers are really stupid and SOI is completely broken because Barton peaked at 2.2GHz at 130-nm bulk while Opteron only went to 3GHz on 90-nm SOI. By your estimates AMD should be looking at 8.8GHz single-core 65-nm CPUs in a couple months. After all, moving ahead two nodes and switching to SOI is worth a 4x clock speed increase, right?
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