Upgrading memory (ram) on Studio 1749, advice please

Question

Currently i have 4gb of ram in my laptop, the memory inside is what it come with, the motherboard chipset is the hm55 and running an intel i5 cpu. I run a scan on crucial says it supports up to ddr-12800. my current ram is 2 x 2gb kingston ddr3-10600 cl9 ram.

my question is will i see much difference in 8gb over 4 and if so there is 3 different upgrades i have noticed that i am interested in, 2 of which are from crucial when its scanned my system and one is another i have found by looking around (and seems the faster)

they are:

Crucial 8GB Kit (4GBx2), 204-pin SODIMM, DDR3 PC3-10600 CL9 memory module (I can get this for about £32)
Crucial 8GB Kit (4GBx2), 204-pin SODIMM, DDR3 PC3-12800 CL11 memory module (I can get this for about £40)
Kingston HyperX memory - 8 GB : 2 x 4 GB - SO DIMM PC3-12800 204-pin - DDR3 CL9 (I can get this for about £55)

I think the main thing which stands out is if i get the kingston one, i will be doubling my memory as well as keeping the timings (cl) the same as i have now (cl9) as well as increasing the MHZ to PC3-12800 memory instead of PC3-10600.

If i got the crucial 8gb pair thats pc3-12800 but only cl11, would i see any real difference or is the cl9 kingston worth the extra money?

Thanks for any opinions on this.

James

ejn63 · Answer

You're not going to see any speed difference with the higher-rated RAM.

james_uk · Answer

ok thank you, i do tend to have a lot running at the same time, and sometimes when i am my laptop does feel very sluggish and like its struggling.

out of the 3 ram above would you say the kingston is deffinitly the best for me, the only issue i have is the crucial ones deffinitly say on the site they are compatible i cant see any mention that the kingston is deffinitly compatible for my laptop.

ejn63 · Answer

Kingston does sell guaranteed compatible RAM (the part numbers begin with KTD).  Otherwise, I would go with Crucial.

ejn63 · Answer

It depends on what you're running. You may be able to keep more things open at the same time, but you won't, by and large, see much speed increase.

That said, memory is now so inexpensive (at the 4G/module point that is -- larger modules are breathtakingly expensive) -- it may make sense to upgrade now.

james_uk · Answer

oh right, will i not see any difference going from 4gb to 8gb? i use windows 7 64 bit.

james_uk · Answer

they do all look a lot cheaper them ones beginning with ktd, the main oines listen on their site are all khx

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Upgrading memory (ram) on Studio 1749, advice please

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