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Technology Stocks : Rambus (RMBS) - Eagle or Penguin -- Ignore unavailable to you. Want to Upgrade?

To: Scumbria who wrote (41006)	4/27/2000 4:26:00 AM
From: Bilow	Read Replies (1) \| Respond to of 93625

Hi Scumbria; Dolphin uses both embedded DRAM and external DDR. No one does DDR in embedded memory, as far as I know, cause embedded usually has more bandwidth than you need, and there isn't much of a pin limitation in full custom. If you need more, you just split the memory in two, and thereby double the bandwidth, without having to buy more memory than you needed. Though doing this does increase the die area, it increases it by a lot less than a factor of two. -- Carl

To: Scumbria who wrote (41006)	4/27/2000 10:54:00 AM
From: Dave B	Read Replies (1) \| Respond to of 93625

Scumbria, Compare the second bullet on this slide from a Rambus presentation ("Rambus ensures all Partners' chips, modules, connectors interoperate compatibly") s299.com to AMD's disclaimer ("and/or that various DDR memory modules may not function correctly with AMD's chipsets.") Dave

To: Scumbria who wrote (41006)	4/27/2000 1:19:00 PM
From: Plaz	Read Replies (2) \| Respond to of 93625

it appears that you are playing devil's advocate. Your post to Carl emphasized the need for bandwidth to the framebuffer, and your post to me played it down somewhat. I'm not advocating anything! :-) I was just calling Carl on a very technically inaccurate post. The memory bandwidth problem is very real. Deferred shading, moving part of the memory inside the chip to eDRAM, using multiple busses, etc are all different solutions who's validity will be decided by the engineers at the 3d chip companies. Plaz