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To: Road Walker who wrote (131174)	3/29/2001 10:16:58 AM
From: Scumbria	Respond to of 186894

John, You asked for this a couple of weeks ago: To:Paul Engel who wrote (49091) From: Scumbria Tuesday, Feb 9, 1999 6:46 PM View Replies (2) \| Respond to of 135072 Paul, Direct RDRAMS at speeds from 300 to 400 MHz. A 16 bit DRDRAM bus running at 300 Mhz, will deliver longer latency and lower bandwidth than SDRAM, at a significant price premium. Sounds like Intel and Rambus are racing towards a head on collision with reality. Scumbria Message 7744162

To: Road Walker who wrote (131174)	3/29/2001 10:21:51 AM
From: Scumbria	Read Replies (1) \| Respond to of 186894

John, Here is an earlier one: To:Brian Hutcheson who wrote (39285) From: Scumbria Wednesday, Oct 14, 1998 8:49 PM Respond to of 135072 If the main memory (i.e. RDRAM) is at 800mhz with 16 bits and can be ganged together to provide higher throughput then why bother with anything other than L1 cache ? Brian, RDRAM has the property that once it gets going, it can burst large amounts of data. It is analogous to a long train. It takes a while to get going, but once it does it moves a lot of cargo to the destination. The problem with CPUs using RDRAM is that they don't need large amounts of data. Instead they need small amounts of data very quickly. RDRAM is exactly the wrong choice for a CPU. To compensate for this, CPU designers are adding large onboard L2 caches to minimize the number of accesses to dram. RDRAM is an excellent choice for graphics adapters, because they are bandwidth limited rather than latency limited. I am really tired of hearing all this nonsense about direct Rambus. I remember the day that INTC shot up because of their announcement about a Rambus alliance. Rambus is not going to improve CPU performance. Scumbria Message 6020593