Silicon Investor (SI) -- The First Internet Community

STOCKTALK

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor. We ask that you disable ad blocking while on Silicon Investor in the best interests of our community. If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.

Technology Stocks : Advanced Micro Devices - Moderated (AMD) -- Ignore unavailable to you. Want to Upgrade?

To: Bilow who wrote (3951)	8/8/2000 9:13:59 AM
From: Dan3	Read Replies (2) \| Respond to of 275872

Re: What is your view on the effect of DDR on system performance... Thanks for the kind words, you are overestimating me. :-) My personal WAG is a real improvement, but not a dramatic one. On the order of 10%. I haven't a detailed clock by clock knowledge of the interaction between the DIMMs, the chipset and the CPU like you do. I'm mostly going by the 4% to 5% improvement between 66MHZ and 100MHZ EDO and 3% to 4% from PC100 to PC133. Historically, a 50% increase in memory speed led to a 5% increase in performance, a 33% increase led to about a 3+% increase, so I'd exepect a 100% increase in memory speed to lead to a 10% increase in overall system performance. Of course, that's the difference in performance between a $500 CPU and a $700 CPU, so if it comes at little additional cost, it's a pretty big deal! Regards, Dan

To: Bilow who wrote (3951)	8/9/2000 3:02:20 PM
From: Ali Chen	Read Replies (1) \| Respond to of 275872

<effect of DDR on system performance> If you have in mind the BAPCO Sysmark-2000, the stalls due to memory walks are about 20% at 1GHz (Athlon with 100/200FSB and SDRAM PC-100). If the system will use DDR-200, there will be about zero performance improvements. If AMD manages to make FSB to work at 133/266, the improvement may be up to 6-7% at 1GHz, but it does not matter whether DDR or SDRAM. If you mean other applications like Spec2000, the story may be different. Regards, - Ali