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View Full Version : RD-RAM vs SD-RAM


-Ryu(+)mega-
06-20-2001, 11:54 PM
Well, I am just sitting here kind of wondering..
How great is the speed difference compared to SD-RAM and RD-RAM?
[133 SD-RAM vs. 800 megahertz RD-RAM]

RD-RAM is much more expinsive, and often requires groupds of 2 128 RD-RAM sticks instead of 1 256 RAM sticks..

Just curious. ;)
~Chris

cbaker17
06-21-2001, 12:19 AM
While statistically rdram is faster its not that much faster youll reach other bottlenecks before you reach rdrams speed bottle necks, you should pay more attn. to the features and reliability of a motherboard rather that the type of ram at this point.

-Ryu(+)mega-
06-21-2001, 12:41 AM
Good. I chose SD-RAM instead of RD-RAM. :)

Many people often, kind of what you said, overlook how important other parts of the system. You shouldn't just say "Oh, well, I have a P4 1.7 gigahertz, 1.024 gigs of RAM." Those are a few basic stats.. Many times people then just throw in some cheap stuff such as a bad heatsink and fan, [a bad choice since it can cause your famed Processor to burn or sound bad].. Get the cheapiest motherboard that supports what you want.




In reality, IMO, computers is one of the things in which what you spend on it is what you get.

However, I am still interested on opionons of RD-RAM vs SD-RAM. I believe that SD-RAM is still more effective- since if you go to Ebay you can get guarenteed working RAM with a life-time warrenty for40 bucks- and that already includes shipping and handling. . . . . .
RD-RAM, however, has been proven to increase the computer's actual speed, even if it cannot have as many programs open at once.. Is that true?
~Chris
(PS- I am twelve, so please forgive my ignorance. :)

cperciva
06-21-2001, 01:19 AM
RDRAM is better... usually. In particular, RDRAM shows (both theoretically and in practice) a significant lead when large blocks of data are being used sequentially -- for example, in audio/video editing, or playing any number of 3D games. SDRAM, on the other hand, does better for unpredictable random accesses -- for example, most "office" applications, or heavy multitasking (by which I really mean server applications).

In a way the RDRAM/SDRAM line can be drawn parallel to the IDE/SCSI line: For an average home user who plays games, edits photos, etc. an IDE drive with high DTR and high seek times will do well, and RDRAM will give the best performance; however, for a web server which is switching between 100 processes, each of which is reading from random disk locations, a SCSI drive will give much better performance, and SDRAM will perform just as well or better than RDRAM at a much lower price.

-Ryu(+)mega-
06-21-2001, 01:24 AM
Yah! I learned something about computers today! *g* :)
Thanks for the info.
~Chris

PS- would this be considered spam? I am just wondering. Different forums have different 'ideas' about what qualifies as a spam post, and I try not to spam. ;)

Chris
06-21-2001, 01:30 AM
RDRAM is for Intel processors which makes it 100% useless to me, so DDR ram takes my vote, and pc133 comes second.

-Ryu(+)mega-
06-21-2001, 01:38 AM
Yes, I hear DDR is nice as well.. only used by Athlons, correct? I guess I personaly prefer intel, even though it IS slower than Athlons right now. ;) (ever since my first computer- 486, intel, I believe it was around 50 megahertz or less I have had intel. :))
I'm a newbie when it comes to much of this technical stuff.. :(
~Chris

cperciva
06-21-2001, 01:45 AM
Originally posted by -Ryu(+)mega-
PS- would this be considered spam? I am just wondering. Different forums have different 'ideas' about what qualifies as a spam post, and I try not to spam. ;)

No, not at all. "Spam", generally speaking, is either 1. A message which is sent out multiple times[1], eg, to many different newsgroups or email addresses, or 2. Commercial [2] advertising in a non-commercial forum.

Sometimes a third meaning, namely 3. Anything which breaks content rules, is added to that list, but that is normally just called "breaking the rules" rather than "spamming".

These definitions originated on usenet, but since then have been generally applied across the internet.

[1] Multiple times is defined technically by an index refered to as "BI", which sums the square root of the number of recipients over each individual message... generally speaking, if the same message is posted 20 times within a month it is considered to be spam.
[2] Commercial in the broad sense of the word: Political propaganda, for example, while not explicitly commercial in nature, is generally grouped into that same category.

Get-Hosted.com
06-21-2001, 03:48 AM
RD-Ram is not a good investment. Intel used it with their P4 and after that, anyone who upgrades past a P4 will be stuck to buy a new motherboard, and new ram. With teh P4 stopping at 2GHz... that's gonna leave a lot of unhappy people who are stuck with an old incompatible motherboard and ram.

SD-Ram is good right now, and DDR ram gives slight increases in performance, and when compared to Good SD-Ram, costs the same. Only difference is a more expensive motherboard. I highly recommend you stay away from the Ebay no name lifetime warranty ram. You'll be doing yourself a favo by getting some good Cas2 high name brand ram for not too much extra. (That also has a lifetime warranty)

Crushix
06-21-2001, 07:26 AM
RD RAM will be no longer made due to it's expensive price.
I say go with DDR RAM. Yeha only if you have Athlon. I heard Intel will be trying to make DDR RAM compatible with Pentium 4. This is good news.
Also, Intel all the way! Screw those benchmark tests.
I go for quality :) Not speed factors.

This would be my overall good computer

PIII 1GHZ
256MB PC133 SD-RAM
Aus CUSL-2 Mainboard
20GB HD RPM 7200

XTStrike
06-21-2001, 08:38 AM
i prefer whatever allows me to browse the internet and since thats not exactly the most intensive thing out there i can use ram as slow as a pi55ed ant crawling through glue and it still doesnt make a difference.

Lawrence
06-21-2001, 08:52 AM
Amusing choice of simile xtstrike... :D