Kingston DDR3 1600 HyperX Genesis Grey vs Blue

[bel07]

Hi guys!
I have one quick questions. I have bought new PC and with my i5 2500k I asked for 8GB Kingston DDR3 1600 HyperX Genesis Grey (link below)
http://www.scan.co.uk/products/8gb-(2x4gb)-kingston-ddr3-hyperx-genesis-grey-pc3-12800-(1600)-non-ecc-unbuffered-cas-9-9-9-27-xmp-1
But instead of them - which I didn’t notice BTW - this guy sold me similar ones but slightly different and more expensive:
http://www.scan.co.uk/products/8gb-(2x4gb)-kingston-hyperx-genesis-ddr3-1600mhz-cl9-165v

Is there any real difference between them? I have heard the ones with "x" at the end are especially designed for sandy bridge and Intel processor so seems like it would be better to have them.
I am going to that shop anyway soon so I will able to exchange them within 7 days from purchase.
The question is there any real difference between them two? Should I bother going back to exchange them??

Thanks for answer and your time
Lee

[maverick_brent]

Originally Posted by bel07

Hi guys!
I have one quick questions. I have bought new PC and with my i5 2500k I asked for 8GB Kingston DDR3 1600 HyperX Genesis Grey (link below)
http://www.scan.co.uk/products/8gb-(2x4gb)-kingston-ddr3-hyperx-genesis-grey-pc3-12800-(1600)-non-ecc-unbuffered-cas-9-9-9-27-xmp-1
But instead of them - which I didn’t notice BTW - this guy sold me similar ones but slightly different and more expensive:
http://www.scan.co.uk/products/8gb-(2x4gb)-kingston-hyperx-genesis-ddr3-1600mhz-cl9-165v

Is there any real difference between them? I have heard the ones with "x" at the end are especially designed for sandy bridge and Intel processor so seems like it would be better to have them.
I am going to that shop anyway soon so I will able to exchange them within 7 days from purchase.
The question is there any real difference between them two? Should I bother going back to exchange them??

Thanks for answer and your time
Lee

from what I read of the two links you posted, no there isnt much of a difference perhaps that the grey version is intel XMP certified?? but the reference to the sandy bridge difference, (someone correct me if i am wrong) is that the low voltage 1.5v memory, is prefered to normal memory when running a sandy bridge cpu...

[Linus]

I would go with the lower voltage kit.

[maverick_brent]

Originally Posted by Linus

I would go with the lower voltage kit.

the links he gave were the same voltage??
same speeds, cl rates, etc...only one version mentioned XMP, I didnt dig into any reviews or specific specs, but looked pretty well the same from the link he gave.

[Linus]

Boo I misunderstood. Didn't look at the links that carefully and read your post and thought one of them was 1.5V.

As for the differences between these two kits... I would just buy whatever's cheaper. XMP doesn't do anything that you cannot do manually...

[maverick_brent]

Originally Posted by Linus

Boo I misunderstood. Didn't look at the links that carefully and read your post and thought one of them was 1.5V.

As for the differences between these two kits... I would just buy whatever's cheaper. XMP doesn't do anything that you cannot do manually...

this was my thinking too...

[bel07]

The voltage is the same on both and both are XMP

The reason I am confused is this official info at Kingston website:
Kingston Technology Company - HyperX DDR3 - Part Number Decoder

[maverick_brent]

Originally Posted by bel07

The voltage is the same on both and both are XMP

The reason I am confused is this official info at Kingston website:
Kingston Technology Company - HyperX DDR3 - Part Number Decoder

well from what i can tell using that decoder, the grey set is merely a special edition.