Should We Still Install Matched Pairs of RAM?












2















When I say "still", I'm not actually talking about current generation Macs. I'm specifically talking about 2012's. Is there still benefit to installing matched pairs or are those days long gone?



I have two 2012 Macs with 4 GB each. I just got my hands on 8 GB from a 2012 iMac. So the question is, which Mac do I upgrade to 8 GB?



...but I could also do 2 GB + 4 GB in each Mac, bringing each Mac to 6 GB.
Way back when, it was always said to install in matched pairs, otherwise the RAM run's "slow". But is this still the case by 2012? Even if it is true, just how much slower is it? It still may be worthwhile to run unmatched pairs to get an extra 2 GB in each machine.










share|improve this question























  • Matched pairs are ideal, but the difference is super minimal. The extra 2 GB of memory afforded by a 2G + 4G config will outdo any advantages offered by a 2G + 2G config. (A more important thing to know is that if you install two sticks of RAM which are rated for different speeds, your computer will operate all RAM at the speed of the slowest stick.)

    – Wowfunhappy
    1 hour ago


















2















When I say "still", I'm not actually talking about current generation Macs. I'm specifically talking about 2012's. Is there still benefit to installing matched pairs or are those days long gone?



I have two 2012 Macs with 4 GB each. I just got my hands on 8 GB from a 2012 iMac. So the question is, which Mac do I upgrade to 8 GB?



...but I could also do 2 GB + 4 GB in each Mac, bringing each Mac to 6 GB.
Way back when, it was always said to install in matched pairs, otherwise the RAM run's "slow". But is this still the case by 2012? Even if it is true, just how much slower is it? It still may be worthwhile to run unmatched pairs to get an extra 2 GB in each machine.










share|improve this question























  • Matched pairs are ideal, but the difference is super minimal. The extra 2 GB of memory afforded by a 2G + 4G config will outdo any advantages offered by a 2G + 2G config. (A more important thing to know is that if you install two sticks of RAM which are rated for different speeds, your computer will operate all RAM at the speed of the slowest stick.)

    – Wowfunhappy
    1 hour ago
















2












2








2








When I say "still", I'm not actually talking about current generation Macs. I'm specifically talking about 2012's. Is there still benefit to installing matched pairs or are those days long gone?



I have two 2012 Macs with 4 GB each. I just got my hands on 8 GB from a 2012 iMac. So the question is, which Mac do I upgrade to 8 GB?



...but I could also do 2 GB + 4 GB in each Mac, bringing each Mac to 6 GB.
Way back when, it was always said to install in matched pairs, otherwise the RAM run's "slow". But is this still the case by 2012? Even if it is true, just how much slower is it? It still may be worthwhile to run unmatched pairs to get an extra 2 GB in each machine.










share|improve this question














When I say "still", I'm not actually talking about current generation Macs. I'm specifically talking about 2012's. Is there still benefit to installing matched pairs or are those days long gone?



I have two 2012 Macs with 4 GB each. I just got my hands on 8 GB from a 2012 iMac. So the question is, which Mac do I upgrade to 8 GB?



...but I could also do 2 GB + 4 GB in each Mac, bringing each Mac to 6 GB.
Way back when, it was always said to install in matched pairs, otherwise the RAM run's "slow". But is this still the case by 2012? Even if it is true, just how much slower is it? It still may be worthwhile to run unmatched pairs to get an extra 2 GB in each machine.







macbook memory mac-mini






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked 2 hours ago









l008coml008com

1,745515




1,745515













  • Matched pairs are ideal, but the difference is super minimal. The extra 2 GB of memory afforded by a 2G + 4G config will outdo any advantages offered by a 2G + 2G config. (A more important thing to know is that if you install two sticks of RAM which are rated for different speeds, your computer will operate all RAM at the speed of the slowest stick.)

    – Wowfunhappy
    1 hour ago





















  • Matched pairs are ideal, but the difference is super minimal. The extra 2 GB of memory afforded by a 2G + 4G config will outdo any advantages offered by a 2G + 2G config. (A more important thing to know is that if you install two sticks of RAM which are rated for different speeds, your computer will operate all RAM at the speed of the slowest stick.)

    – Wowfunhappy
    1 hour ago



















Matched pairs are ideal, but the difference is super minimal. The extra 2 GB of memory afforded by a 2G + 4G config will outdo any advantages offered by a 2G + 2G config. (A more important thing to know is that if you install two sticks of RAM which are rated for different speeds, your computer will operate all RAM at the speed of the slowest stick.)

– Wowfunhappy
1 hour ago







Matched pairs are ideal, but the difference is super minimal. The extra 2 GB of memory afforded by a 2G + 4G config will outdo any advantages offered by a 2G + 2G config. (A more important thing to know is that if you install two sticks of RAM which are rated for different speeds, your computer will operate all RAM at the speed of the slowest stick.)

– Wowfunhappy
1 hour ago












1 Answer
1






active

oldest

votes


















2














No - even in the core 2 days, it was almost always faster to have more RAM that wasn’t matched compared to less RAM that was matched. I believe the penalty was 3% range - so you could test it in a benchmark, but real world - more RAM wins.



These days, the memory controllers are so good, I don’t think you can even benchmark differences due to a mix of memory sizes or locations.






share|improve this answer
























  • How would you benchmark RAM? That's a good idea, I'm curious to see the difference.

    – l008com
    58 mins ago











Your Answer








StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "118"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});

function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});


}
});














draft saved

draft discarded


















StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fapple.stackexchange.com%2fquestions%2f349716%2fshould-we-still-install-matched-pairs-of-ram%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown

























1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









2














No - even in the core 2 days, it was almost always faster to have more RAM that wasn’t matched compared to less RAM that was matched. I believe the penalty was 3% range - so you could test it in a benchmark, but real world - more RAM wins.



These days, the memory controllers are so good, I don’t think you can even benchmark differences due to a mix of memory sizes or locations.






share|improve this answer
























  • How would you benchmark RAM? That's a good idea, I'm curious to see the difference.

    – l008com
    58 mins ago
















2














No - even in the core 2 days, it was almost always faster to have more RAM that wasn’t matched compared to less RAM that was matched. I believe the penalty was 3% range - so you could test it in a benchmark, but real world - more RAM wins.



These days, the memory controllers are so good, I don’t think you can even benchmark differences due to a mix of memory sizes or locations.






share|improve this answer
























  • How would you benchmark RAM? That's a good idea, I'm curious to see the difference.

    – l008com
    58 mins ago














2












2








2







No - even in the core 2 days, it was almost always faster to have more RAM that wasn’t matched compared to less RAM that was matched. I believe the penalty was 3% range - so you could test it in a benchmark, but real world - more RAM wins.



These days, the memory controllers are so good, I don’t think you can even benchmark differences due to a mix of memory sizes or locations.






share|improve this answer













No - even in the core 2 days, it was almost always faster to have more RAM that wasn’t matched compared to less RAM that was matched. I believe the penalty was 3% range - so you could test it in a benchmark, but real world - more RAM wins.



These days, the memory controllers are so good, I don’t think you can even benchmark differences due to a mix of memory sizes or locations.







share|improve this answer












share|improve this answer



share|improve this answer










answered 1 hour ago









bmikebmike

158k46284613




158k46284613













  • How would you benchmark RAM? That's a good idea, I'm curious to see the difference.

    – l008com
    58 mins ago



















  • How would you benchmark RAM? That's a good idea, I'm curious to see the difference.

    – l008com
    58 mins ago

















How would you benchmark RAM? That's a good idea, I'm curious to see the difference.

– l008com
58 mins ago





How would you benchmark RAM? That's a good idea, I'm curious to see the difference.

– l008com
58 mins ago


















draft saved

draft discarded




















































Thanks for contributing an answer to Ask Different!


  • Please be sure to answer the question. Provide details and share your research!

But avoid



  • Asking for help, clarification, or responding to other answers.

  • Making statements based on opinion; back them up with references or personal experience.


To learn more, see our tips on writing great answers.




draft saved


draft discarded














StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fapple.stackexchange.com%2fquestions%2f349716%2fshould-we-still-install-matched-pairs-of-ram%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown





















































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown

































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown







Popular posts from this blog

CARDNET

Boot-repair Failure: Unable to locate package grub-common:i386

濃尾地震