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Windows 7: Upgrade system ram from DDR2 to DDR5 big difference?

04 Feb 2010   #1
DarkPhoenix

Windows 7
 
 
Upgrade system ram from DDR2 to DDR5 big difference?

My Motherboard will not use more than 4 gigs of ram.. BUT.. I was thinking about a way to cheat this.

I understand every time you go up from a DDR rating say from DDR1 to DDR2 with 2 gigs of ram.. its really like you are getting a 3 gig stick of ram if it were still rated at ddr1.

This is how the DDR thing was explained to me.

So If I have DDR2 now with 4 gigs.. and swap that for 4 gigs of DDR5.. wont that be like getting something like 6 gigs of ram effectively work/power wise? (like having 6 gigs of DDR2)


My System SpecsSystem Spec
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04 Feb 2010   #2
jimbo45

Linux CENTOS 7 / various Windows OS'es and servers
 
 

Hi there
unless you are an inveterate gamer you'll hardly notice a difference in DDR2 / DDR5 RAM.

For 90% of "typical Users" the performance of your machine will be dictated by the speed of the HDD's.

Slowish Hard disks are usually always the cause of poor performance - assuming you have a decent amount of RAM in the system.

Getting an SSD will pay much better dividends in performance than upgrading your RAM to DDR5.

If you get an SSD put the system page file on this too. You don't need to have the OS on this drive BTW as once the OS is loaded Windows doesn't need to load a lot more. Putting the paging file (and any Photoshop etc Scratch / work files and database indexes on an SSD will speed up your system NO END).

Cheers
jimbo
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04 Feb 2010   #3
Wishmaster

Windows 7 Home Premium 64bit
 
 

What jimbo45 said


I would add, that RAM speed will not help very much at all, if any for gaming.

If you are building a complete new PC, then YES, go with DDR3.

If upgrading you current system so it can use DDR3, in hopes it will speed things up, then NO. you will be sadly disappointed.
You will likely not see any real gain in a real world situation.

not to mention, if your board only supports DDR2, then you can only use DRR2 modules. Depending what you have, you may be able to replace them with 2x2Gb of faster.
A few boards will support both DDR2 and DDR3 .. but as stated above .. the diff is not much in real world use.
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04 Feb 2010   #4
madtownidiot

 

Quantity of ram will make a bigger difference than speed. 16 GB of DDR2 @ 1066MHz will outperform 8 GB of DDR3 at 1333 MHz and cost less than half as much. Use what you'd save to buy a SSD large enough for the OS and a couple games and you'll end up with a much faster machine for the same money
My System SpecsSystem Spec
04 Feb 2010   #5
Wishmaster

Windows 7 Home Premium 64bit
 
 

Thats true only IF you use applications that are very heavy on RAM use, Multiple VMs etc.

For the most part 4Gb is plenty for most people,
and those who use heavier RAM use apps 6-8 is typically enough, although true some will have exceptions and need more.

generally speaking most will never need more than 4-6
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04 Feb 2010   #6
madtownidiot

 

Quote   Quote: Originally Posted by Wishmaster View Post
generally speaking most will never need more than 4-6
"640K is more memory than anyone will ever need" - Bill Gates
My System SpecsSystem Spec
04 Feb 2010   #7
pparks1

Windows 7 Ultimate x64
 
 

More ram does not always equate to better performance. Also, there are other things to consider to get an accurate picture. For example, latencies are lower with DDR2 RAM versus DDR3 RAM. So, while DDR3 does offer more bandwidth and total throughput speed, if you aren't maxing it out...you might not be gaining enough to offset the lower latencies provided by the DDR2 RAM.

Also, as most have likely noticed, DDR2 RAM is getting more and more expensive these days. I know that it's about 2x the cost that it was back in July of 2009. However, the price of DDR3 hasn't really been going up...but rather down.

Finally, in order to change from DDR2 to DDR3 you have to have a mobo with support for the new RAM chips. They don't have the same physical interface so DDR3 sticks will not fit into the DDR2 slots on older mobos. The little notch is in a physically different location.

I would say the "majority" of home computer users likely don't need more than 2GB of RAM. Some users might have heavier needs or run beefier apps like Photoshop and these people might gain from moving to 4GB of RAM. The vast majority of people who have upgraded to 8GB...hardly ever make use of that RAM. I put 8GB into my machine...but I setup lab scenarios in virtual machines so it's not uncommon for me to run 4-5 virtual machines simultaneously. ( A domain controller, an exchange server, a sql server, and 1-2 client machines).
My System SpecsSystem Spec
04 Feb 2010   #8
madtownidiot

 

Three absolutes that have held true since I built my first gaming computer in the 80s

The operating system will expand to fill all available storage media.
Everything will require more memory after the next update.
Attempts to fully utilize available resources inevitably result in the need to increase available resources
My System SpecsSystem Spec
04 Feb 2010   #9
chev65

Windows 7 Ult, Windows 8.1 Pro,
 
 

That won't work as already pointed out, memory is board specific. But when it comes to performance CPU speed is still king I don't care what anyone says.
My System SpecsSystem Spec
04 Feb 2010   #10
pparks1

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by madtownidiot View Post
Two absolutes that have held true from the beginning

The operating system will expand to fill all available storage media.
Everything will require more memory after the next update.

But I think Windows 7 runs much better on lower amounts of RAM than Vista ever did. So, that absolute might not be so absolute anymore
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 Upgrade system ram from DDR2 to DDR5 big difference?




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