【新聞】JEDEC暗示DDR-II將成為下一主流DRAM標準



贊助商連結


kanako0605
2002-04-09, 02:59 PM
首屆JEDEC會議上,JEDEC代表指出,DDR-400是否會成為繼DDR-300之後的下一主流,目前該組織正在猶豫中;而在DDR-333方面,之前已獲批准,成為目前市場上PC及其他產品的主流技術標準。JEDEC的代表更進一步暗示,"DDR-II"將取而代之(DDR-400)成為DDR-333之後的下一代DRAM標準,預計於今年將其制定為標準化,於2003年正式大量生產。在JEDEC的原始文章中指出,DDR-II共有兩種規格,400MHz 和 533MHz,使用的電壓為1.8V,封裝形式分為三種DIMMs、SODIMMs和MicroDIMMs。該組織亦正朝DDR-III方向發展中!!

以下為文章部分內容,資料來源:JEDEC

Now that the industry is comfortably launching volume productions of DDR SDRAM components with 200 and 266 megahertz data rates, and with the 333 megahertz speed grade sampling and getting ready for volume ramp in 2002, you would think that everyone could relax for a while. With module data throughput of 1600 megabytes per second for the DDR200 chips up to an astounding 2700 megabytes per second for DDR333 modules, the performance of today's DDRbased computing systems are impressive indeed. However, there is no rest for the weary. Processors seem to have an insatiable appetite for more bandwidth, so JEDEC has been busy on the development of ever higher speed grades of DDR for future systems.Generally called DDR II, this new generation of SDRAMs is highly compatible with the existing DDR generation of memories with a few new features to help drive data rates to 400 and 533 megahertz data rates per pin.These new features include a lower input/output signaling level,1.8V, to enable higher transfer speed through faster signal transition times, while at the same time reducing the operating power – the CV2f rules apply here! DDR II SDRAMs also include posted read and write options, further enhancing the performance of systems by offering high command bus utilization.The DDR400 speed grade offers 3200 megabyte per second peak throughput on PC3200 modules,which will be offered in 5.25 inch dual in-line memory modules (DIMMs), small outline (SODIMMs),and miniature form factor (MicroDIMMs). Even higher performance, the DDR533 speed grade, yields 4300 megabytes per second in a module.DDR II SDRAMs are expected to sample in 2002 with volume production to begin in 2003. So do you think we can rest now? Of course not… development has already begun on

贊助商連結


lipengj
2002-04-10, 01:20 PM
最初由 hjk0828 發表
哇,我還在用PC-133耶,想不到DDR都還沒用過,就又有新東西了......

我用PC-100﹐比你還可憐

:mad:

arnojean
2002-04-11, 01:56 AM
我想等到一切都成為定局後再來考慮吧!

harker
2002-04-11, 02:25 AM
當初買pc133想說換系統時ram 不會太差,結果我現在還在用k6-3-450還是100外頻的pc133還用不到,沒想到已經ddr400了

wisonlin
2002-04-11, 08:15 PM
時代變化可真快 現P4都主推DDR了 雖說我現用的是P3-933 SDRAM 還有512Mㄟ 難道P4的板子都開始不管SDRAM 了嗎 過幾年後他就只能跟我EDO RAM一樣只能拿來當鎖匙圈了嗎:mad:

lenbo
2002-04-11, 10:45 PM
至於未來誰會成為主流,一切的變數還是很大!
即使是現在DDR266也未能一統天下,不算其他的DDR家族
市場佔有率大概不到30%吧!
而且DDR的汰換速度太快,DDR200才剛出DDR266就跟上了
現在DDR333都還沒站穩,又放風聲要出DDR-II了

Hanse
2002-04-11, 11:26 PM
不知DDR-II(+)還會一直是184 pin ㄇ??
之前有聽說未來DDR會有200 pin 以上....:confused:

ericlien
2002-04-11, 11:40 PM
最初由 lenbo 發表
至於未來誰會成為主流,一切的變數還是很大!
即使是現在DDR266也未能一統天下,不算其他的DDR家族
市場佔有率大概不到30%吧!
而且DDR的汰換速度太快,DDR200才剛出DDR266就跟上了
現在DDR333都還沒站穩,又放風聲要出DDR-II了 個人也贊成小強兄的觀點畢竟現在DDR滿混亂的而且RAMBUS大有捲土重來之勢(PC1066和PC1200)還是需要再觀察一陣子!;)

EIGHTS
2002-04-12, 01:00 AM
有篇報導指出
Intel 有意提早推出 i850E 的晶片組
Rambus 還是 P4 的唯一的最佳配備