LinuxQuestions.org
Download your favorite Linux distribution at LQ ISO.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Hardware
User Name
Password
Linux - Hardware This forum is for Hardware issues.
Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?

Notices


Reply
  Search this Thread
Old 01-10-2005, 12:36 AM   #1
arun3
LQ Newbie
 
Registered: Jun 2003
Posts: 11

Rep: Reputation: 0
speed versus quantity with ram


I'm needing to speed up my computer with some more ram. I'm running Slack 10.1, but i think that is irrelevant. I'm just wondering if anyone could help me find out if getting faster ram is better than getting more ram. Would it be better to get, say, 512mb of pc3500 ram, or 1024mb of pc2100? Thanks for any help.
 
Old 01-10-2005, 01:03 AM   #2
J.W.
LQ Veteran
 
Registered: Mar 2003
Location: Boise, ID
Distribution: Mint
Posts: 6,642

Rep: Reputation: 85
I would take X megs of slower RAM over half X of faster RAM any day. It depends a lot on the specific quantities and speeds you're talking about, but at least for me I'd go with the 1G of 2100 over 512Mg of 3500. That's just my own 2 cents, I don't have any official benchmarks or anything like that, so I may be wrong.

Regardless, if you're planning to upgrade your memory though, be sure that your mobo can handle it. For instance, if your mobo can handle a max of DDR 333, then don't buy anything faster than 2700 because you won't get any additional performance. -- JW.
 
Old 01-10-2005, 02:09 PM   #3
arun3
LQ Newbie
 
Registered: Jun 2003
Posts: 11

Original Poster
Rep: Reputation: 0
So in other words, the speed difference between two equal sized pieces of ram is pretty much negligible for the standard user?

And thanks for the reminder, I went back and checked and realised my board supports only up to DDR 400.
 
Old 01-10-2005, 03:07 PM   #4
Emerson
LQ Sage
 
Registered: Nov 2004
Location: Saint Amant, Acadiana
Distribution: Gentoo ~arch
Posts: 7,231

Rep: Reputation: Disabled
It depends on what your computer does. For a network server with alot of cached files amount of RAM is important and speed quite irrelevant. For a gamer who wants to get x+1 framerates instead of x, the speed is everything and amount has to be just sufficient.
For you there may be no difference at all if your amount of memory is not a proved bottleneck.
 
Old 01-10-2005, 05:07 PM   #5
J.W.
LQ Veteran
 
Registered: Mar 2003
Location: Boise, ID
Distribution: Mint
Posts: 6,642

Rep: Reputation: 85
Quote:
Originally posted by arun3
So in other words, the speed difference between two equal sized pieces of ram is pretty much negligible for the standard user?
Well, that depends on what kind of applications you are running. All other things being equal, faster RAM is always better than slower RAM, however, the original question was whether having twice as much slower RAM would be better or worse than half that amount of faster RAM. If I had to choose in this scenario, I'd go with having twice as much slower RAM.

Now, if you are using equal amounts of RAM, then the faster RAM probably will result in noticeably better performance but as I said a lot of this will depend on the apps you are running. For a standard user doing typical activities (checking Email, surfing the web, etc) there probably won't be any detectable improvement, simply because those tasks just don't take that much horsepower to complete. To illustrate, suppose a given task takes 0.04 seconds to complete with the slow RAM, but only 0.03 seconds with the fast RAM. Mathematically, using the faster RAM will give you a 33% speed improvement, but in real terms, gaining a whopping one-hundreth of one second isn't exactly a cause for celebration.

On the other hand, if the user is working with apps that do require major horsepower (graphics work, heavy duty number crunching, etc) then there definitely should be an obvious difference with the faster RAM. Using the same example, if you had to do that same imaginary task 1000 consecutive times, then the slow RAM would require 40 seconds to complete the work while the faster RAM would require 30 seconds. That would be noticeable.

Having said all this, if you are planning on upgrading your RAM, be sure to use sticks that are running at the same speed (ideally, I'd suggest using identical sticks - same model, same manufacturer, same speed, same capacity). If you use multiple sticks of RAM, the effective speed will only be as fast as the slowest stick, eg, if you have 256 or 2100 and 256 of 2700, your system will effectively be using 512 of 2100.

Sorry for the long post. Good luck with whatever upgrade decision you make -- J.W.
 
Old 01-10-2005, 06:50 PM   #6
arun3
LQ Newbie
 
Registered: Jun 2003
Posts: 11

Original Poster
Rep: Reputation: 0
Thanks for the information and advice!
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
Determining RAM speed smithtodda Linux - Hardware 8 03-22-2014 02:45 PM
Netscape versus IE for browser speed dolphans1 Mandriva 1 06-23-2005 05:42 PM
how to find the bus speed of my RAM rmanocha Linux - General 6 01-16-2004 10:55 PM
Question on CPU speed vs RAM satimis Linux - Hardware 8 01-08-2004 02:05 PM
shared Memory versus the total amount of RAM on the server ashley75 Linux - General 1 08-25-2003 11:21 AM

LinuxQuestions.org > Forums > Linux Forums > Linux - Hardware

All times are GMT -5. The time now is 12:49 AM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Open Source Consulting | Domain Registration