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All Forums > Tech Talk > Tech Talk Forum Page 56 > RAM ?
AuthorPost
Coyote
Member

Daylight Savings Time, is it really Necessary?
972 Posts
3/04
Posted - Jul 15 2004 : 4:37AM
I was under the impression that RDRam was the fasted RAM out there but I have seen DDR 2x (something like that) being sold with Dell Computers and was wondering if that is faster than RD? My tech terms may be a bit off but I hope I made sense..if not I'm in the wrong forum..lol.
GaySatyr
Senior Member

Half dirty ol' man; half horny ol' goat!
1684 Posts
10/00
Posted - Jul 15 2004 : 4:49AM
They are different and handle memory operations enough differently that it is not easy to make a direct comparison. However, with the i875, i915, and i925 chipsets, the current fastest DDR SDRAM has a greater through-put than any of the current fastest RD RAM.

~ GaySatyr

Coyote
Member

Daylight Savings Time, is it really Necessary?
972 Posts
3/04
Posted - Jul 15 2004 : 8:38PM
Wow, thanks GS.
Drew Black
broken crankshaft

8009 Posts
9/99
Posted - Jul 15 2004 : 8:58PM
I think the switch to DDR and other open standard memory architectures is based more on economics than performance. Rambus DRAM has the potential to be faster than anything out there but it comes with the extra baggage of paying licensing and royalties to the patent holders.

I hope that I see the day when IBM's new electron-spin memory technology is mass marketable. They sold off their entire hard drive design and manufacturing business based on the assumption that when they are able to manufacture the new technology cheaply magnetic media as we know it will be obsolete.


GaySatyr
Senior Member

Half dirty ol' man; half horny ol' goat!
1684 Posts
10/00
Posted - Jul 15 2004 : 9:31PM
Drew, I think you are right in terms of RD RAM potential and about the switch to DDR SDRAM because of its economics; however, that battle was fought and won ages ago -- at least in the short life cycle of memory wars -- and DDR SDRAM has developed quite rapidly whereas development of RD RAM has slowed tremendously: thus my conclusion.

With the implementation of Intel's i875/i865-series and their i925/i915-series chipsets (and other chipset manufacturers' implementation of the same memory protocols) DDR SDRAM is pulling way ahead. With top-of-the-line motherboards and memory for both memory types, effective through-put for DDR SDRAM is now about 40% higher than for RD RAM.

The only place where RD RAM still holds its own is with servers. Here the error detection and correction components as implemented in the current generation of DDR SDRAM hold it back, however, that bottleneck should be eliminated in the next cycle of ECC DDR SDRAM design.

~ GaySatyr




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