Need help with RAM (iMac)

First things first, my apologies for making a topic about RAM if it has been brought up 5000000 times in the past. I did read the sticky and all the RAM information that was there but i still dont have a clue about updating/grading my RAM for my iMac thus have decided to come on here and try to get some help from people who do this.

Now to my problem. I want to upgrade my iMac (mid 2011) 21.5"'s RAM, it currently has the standard 4Gb of RAM but i want to upgrade it to about 8, 16 or even 12Gb's (with the current 2 + the new 2 RAM sticks) so it can handle more intense applications and generally handle itself better. Now the thing is that i dont understand all this tech talk about the different types of RAM and DDR1 - 3 and the different speeds.

I was looking around and i was told to use this RAM and that it was compatible with my iMac version:

http://www.amazon.co.uk/memory-upgrades-4GBx2-1333MHz-Macbook/dp/B004TQH6U8/ref=pd_cp_computers_1

Now when i have spent a lot of money on something i like to take a second opinion on buying advice so i dont end up breaking that item, hence why i hope someone can shed some light for me on this.

Hope someone can help and thanks!

(If you need any other information then tell me and ill try to provide it here.)

ConCat said:

Did a google search for "mid-2011 iMac RAM upgrade", and got this: http://support.apple.com/kb/HT4621

Search for RAM with all those characteristics and you'll be good to go.

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AppleDApp said:

Crucial has a memory advisor check it out.

http://www.crucial.com

from what I am reading the RAM from Amazon will work.

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Thank you both for the reply.

@AppleDApp - So would you say that the RAM is good to go along with??

AppleDApp said:

I would purchase it. It matches what I have found.

http://www.crucial.com/store/listpa...d-Core i5 (21.5-inch - DDR3) Mid 2011&Cat=RAM

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Ok, thanks for the help. Ill be sure to look at this particular RAM and might make a purchase soon.

Thanks again!

SirYossi said:

macsales.com has the best prices
2011 imac supports officially up to 16 gig but actually supports up to 32
I have 12 gig in mine only cost little less than $50 shipped for 8 gig to add to the 4 gig I already had in it.

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At macsales you can do search for comparable ram by computer model very easy to use to avoid confusion.

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http://eshop.macsales.com/MyOWC/Upgrades.cfm?sort=pop&model=425&type=Memory

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that was actually very helpful site, thanks!

But as seen as im from Europe ill have to look about for a similar site that provides resources like that.

Thanks!