SDRAM nomenclature is REALLY WEIRD...

[revvy]

Here's the question.. if there's DDR RAM... standing for Double Data Rate... and with DDR 333 RAM modules available and DDR 400 along with DDR 667 coming afterwards... shouldn't there be a change in name to let's say "TDR" or possibly "QDR" standing for.. you guessed it.. Triple Data Rate and Quadruple Data Rate.. and anther question... why are SDRAM modules still referred to by their bandwidth throughput ie. PC-2100, PC-2400, PC-2700 etc.... all of these ways of referring to RAM muddle things even further... IMHO... should there be some sort of convention established in naming SDRAM modules .. I certainly think there should be... conversely... RDRAM modules are so much easier to refer to ... for one thing.. new types of RDRAM modules haven't been coming out and evolving at an alarming rate as SDRAM and they only have two types available.. that being PC-600 and PC-800...
There should be a switch back to naming new SDRAM parts according to their clock speed with the "PC" prefix rather than migrating to the "PC" prefix with the rated bandwidth throughput following afterwards...
Just wanted to get this off my chest... Thanks for reading.

 

[microAmp]

<< Here's the question.. if there's DDR RAM... standing for Double Data Rate... and with DDR 333 RAM modules available and DDR 400 along with DDR 667 coming afterwards... shouldn't there be a change in name to let's say "TDR" or possibly "QDR" standing for.. you guessed it.. Triple Data Rate and Quadruple Data Rate.. and anther question... why are SDRAM modules still referred to by their bandwidth throughput ie. PC-2100, PC-2400, PC-2700 etc.... all of these ways of referring to RAM muddle things even further... IMHO... should there be some sort of convention established in naming SDRAM modules .. I certainly think there should be... conversely... RDRAM modules are so much easier to refer to ... for one thing.. new types of RDRAM modules haven't been coming out and evolving at an alarming rate as SDRAM and they only have two types available.. that being PC-600 and PC-800...
There should be a switch back to naming new SDRAM parts according to their clock speed with the "PC" prefix rather than migrating to the "PC" prefix with the rated bandwidth throughput following afterwards...
Just wanted to get this off my chest... Thanks for reading. >>



Don't forget to add PC66, PC100, and PC133 Then you got RDRAM at PC1066 and I thought there was some PC700.

 

[ElFenix]

DDR is refered to in mhz as part of a rambus is better strategy that intel used to employ. sheep believe that the higher number is better. so when ddr came out the ddr makers called it pc1600 and pc2100 to make it look faster than rambus pc800. intel called it pc266, refering to the 2x 133MHz bus it runs on, and rdram pc800 is 2x 400mhz bus. prob is, rdram is 16 bits wide and sdram of any sort is 64 bits wide, so you don't get the accurate picture of which is faster.


and no, we wouldn't call it TDR or QDR unless it was able to have 4 data bits per carrier wave, and that technology hasn't been implemented yet. DDR refers to the fact that the ram can use both the leading and trailing edge of the carrier signal for data, as opposed to regualr SDR ram which uses only the leading edge.

and i'm for calling it by the bandwidth because i think it paints a more accurate picture of real performance, rather than the clock speed which is only half the bandwidth equation. neither of those tell you of latency though, which has quite a bit to do with performance.

 

[revvy]

Hey Thanks ElFenix... you cleared up things pretty much... I guess referring to bandwidth throughput would make more sense now.