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CL9 RAM vs CL11 for an AMD APU?

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December 6, 2012 6:16:37 PM

My laptop is an Acer V3-551-8887 using the A8-4500m with integrated graphics. I'm running windows 7 64-bit. According to this Acer support page, the CPU is natively compatible with 1600mhz RAM (unless I'm misinterpreting it). I can't find anything on the mother board. I use this computer for gaming (first-person shooters).

Here are the 3 kits I'm considering:
http://www.crucial.com/store/mpartspecs.aspx?mtbpoid=6467BC19A5CA7304
http://www.amazon.com/Samsung-Electronics-Extreme-MV-3T4G3D-US/dp/B00592005E/ref=sr_1_1?ie=UTF8&qid=1354815085&sr=8-1&keywords=Samsung+MV-3T4G3D%2FUS
http://www.amazon.com/Kingston-Modules-Notebook-KHX1600C9S3P1K2-8G/dp/B004Y4XAAK/ref=sr_1_7?ie=UTF8&qid=1354745271&sr=8-7&keywords=sodimm+ddr3

The first two are CL11 and 1.35v, and the last one is CL9 and 1.5v. They're all 1600MHz.

Questions:
Will my computer benefit from 1600mhz RAM?
The first two will produce less heat heat than the third one. Will this make up the performance difference between CL9 and CL11?
I don''t know anything about overclocking, but could I overclock the Samsung RAM to CL9?


Thanks

More about : cl9 ram cl11 amd apu

December 7, 2012 2:02:36 AM

My opinion is that it doesn't really matter. The differences that you would have are so minute that you wouldn't notice. From what i have read these new apu's benefit from higher frequencies anyway
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December 7, 2012 2:03:12 AM

oh and with a laptop you're not likely going to be able to overclock much, if not at all
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a b } Memory
December 7, 2012 2:15:40 AM

Underdog is wrong on this one...

AMD APUs LOVE RAM frequency and lower latency.

If your laptop supported it I would have suggested 1866MHz RAM but unfortunately it does not.

http://www.amazon.com/Kingston-Modules-Notebook-KHX1600...

That is the one I would get... You really want lower latency with the AMD APUs...
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a b } Memory
December 7, 2012 4:31:45 PM

Yeah those are good too, pretty much equally good. I prefer Corsair though...
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December 7, 2012 6:29:37 PM

The Corsair RAM has a slightly better latency (9-9-9-24 vs 9-9-9-27) which I didn't notice before. The Kingston RAM has a heat spreader though. Is the Corsair RAM still better?
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a b } Memory
December 7, 2012 6:43:47 PM

By a VERY small margin, the first three digits are what really matter...

Heat-spreaders have never really mattered much if you don't OC, and you won't be OCing anyway.
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December 8, 2012 10:40:09 PM

Thanks for your help :)  I'm going to get the Corsair RAM.
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December 8, 2012 10:41:02 PM

Best answer selected by alr.
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