Corsair RAM same speed.. different part numbers - is this ideal?

[fitzo0]

Hey guys, I'm in need of some advice here.. I bought a PC a few months back with 16GB of Corsair Vengeance RAM (2x8GB) Part no CMK16GX4M2B3200C16
After a couple of months I decided to upgrade to 32GB and decided to buy the "same" RAM (at least what I thought was..) which I have installed with no issues.. however, I checked the part number on the new RAM and it's CMK16GX4M2Z3200C16 - slightly different...

And the only reason why I have been questioning this now is because of what I am seeing via CPU-Z

Original RAM:

 

New RAM:

 

You can see they are different speeds slightly... should I return the new RAM sticks and buy the other ones with the same part number? Worried about this affecting system performance.

Thanks!

[Leanora]

If it runs stable at 3200 then it is fine I think.

 

For me I can't even run stable at 3200 via xmp and have to downclock to 2933.

This is with 4x CMK16GX4M2B3200C16, however 2 are from samsung and 2 are from SK Hynix.  Even if you buy the same models it is not certain you will be able to run at 3200 due to multiple fabs, mayhap you can set it manually to that speed or even higher but yeah...

[fitzo0]

Thanks for your reply Leanora! Is it safe to manually set RAM speeds? I also don't even know how to do that haha

 

Corsair link shows this info:

 

 

I'm assuming everything is okay system wise.. otherwise I'd know about it already

[Leanora]

Well it depends on how you define 'safe'.

XMP basically does the same thing, the difference is that instead of you finding a stable setting it comes from the manufacturer.

There are some ram speed calculators, a quick google will help you out with that.

If you are not into overclocking and XMP is stable for you then i'd just leave it alone.

 

On a side note I do find it strange that it shows 1593.3 and not 1600, but that's all.

I never used the corsair app so I assume you need to 2x it yourself