Memory - Questions about duel channel and power usage

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FunGui

FunGui

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Nov 10, 2013
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Hi, could somebody explain to me how duel channel memory works and how much performance gain it provides? I have 4x 8 GB of RAM, and wish to utilise them. Two of them are 8gb Kingston 1333mhz, without heat spreader, and other two are 8gb 1600mhz corsair vengeance LP.
How much power does these consume? I shall be running all at 1333mhz on my Z97-a with a 4690k, but I only have a 460w PSU. I also have a r7 250x. Can I run it all?
Previously I was running above configuration with pentium g2020 and only kingston RAM, but after upgrade to Z97 and 1150, I don't know whether my PSU will be able to take. Please could somebody enlighten me?
Thanks :)
 
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R
Dual channel RAM (in theory) doubles the performance of your RAM. It works by splitting writes across two memory channels so tasks finish (up to) twice as fast. Reads are then sourced from both channels simultaneously.

In terms of power use, RAM is almost basically irrelevant. A few watts at most, it's inconsequential.

460W is absolutely fine for that config, provided you have a decent PSU that actually delivers its rated wattage (many cheaper models outright lie about their power output and can fail catastrophically, taking components with them). If you're worried post the make and model of your PSU here and someone can clarify. If it's a halfway decent 460W PSU, you'll be absolutely fine with a 4690 & 250x... a good 250W PSU...
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rhysiam

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Mar 24, 2013
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Dual channel RAM (in theory) doubles the performance of your RAM. It works by splitting writes across two memory channels so tasks finish (up to) twice as fast. Reads are then sourced from both channels simultaneously.

In terms of power use, RAM is almost basically irrelevant. A few watts at most, it's inconsequential.

460W is absolutely fine for that config, provided you have a decent PSU that actually delivers its rated wattage (many cheaper models outright lie about their power output and can fail catastrophically, taking components with them). If you're worried post the make and model of your PSU here and someone can clarify. If it's a halfway decent 460W PSU, you'll be absolutely fine with a 4690 & 250x... a good 250W PSU would handle those!

RE "utilsing" 32GB of RAM... good luck. Most power users will find 8GB plenty, 16GB is really only for video editors and bragging rights, 32GB only starts to matter if you're doing some really serious content creation, or running up a bunch of virtual machines. Most of us would never be able to tell the difference between a machine running 8 and a machine running 32GB of RAM.

Sell it maybe?
 
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FunGui

FunGui

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Nov 10, 2013
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I have a Silver Power SP-S460FL. I am not sure how good/ expensive it is, as you can no longer buy them, but it is fully modular and 80+ gold, apparently. I am planning to over-clock my 4690k.
I think I will sell some of my RAM, yes. Should I sell both my 1333mhz and have 16gb in 1600 mhz dual channel, or sell one of my 1333 mhz and have 24gb in 1333mhz dual channel with corsair vengeance?
 
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FunGui

FunGui

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Nov 10, 2013
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I have the Silver Power SP-S460FL PSU
Would the RAM work then? With different DRAM (What does DRAm do?)

 
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