[SOLVED] what is the difference between 1.2v ram and 1.35v ram?

[BrokenKB]

the store sells 2 sticks 8gb 3200mhz 1.2v at 80usd, and the same model but 1.35v is at 95usd

i wanna pair them with a b450 mobo and never overclock it (only set them to. xmp profile)

what is the difference or what i lose if buy 1.2v?

 

[boju]

That would be incorrect advertising. Do you have a link to the store's website for the ram?

Ram follow a Jedec standard and are all capable of running at default speeds between 2133, 2400 and 2666 at 1.2v. Faster than that requires XMP or DOCP (Asus XMP equivalent) which'll run the ram at 1.35v. Perfectly safe.

So someone or store selling 3200 ram @ 1.2v is misleading. Or they've made a mistake.

 

[Ralston18]

By "lose" I expect you are referring to performance or power demands..... (?)

Go back one step:

What memory configurations does the b450 mobo actually support?

With or without overclocking?

The mobo's User Guide/Manual and most likely the manufacturer's website will provide such details.

An additional approach is to go to RAM manufacturer's websites and find/identify RAM modules compatible with the b450.

 

[geofelt]

DDR4 ram stock specs are 1.2v up to perhaps 2666 speed.
Any ram faster than that is better binned and can be overclocked to run at higher speeds like 3200.

Is the store selling two individual sticks, or a matched pair in a single kit??
You want the kit, not individual sticks which might not be compatible.

The speed that can be supported by your particular motherboard may also depend on the processor you install.
One place to check is your motherboards web site.
Look for the ram QVL list. It lists all of the ram kits that have been tested with that particular motherboard.
Sometimes the QVL list is not updated after the motherboard is released.
For more current info, go to a ram vendor's web site and access their ram selection configurator.
Enter your motherboard, and you will get a list of compatible ram kits.
While today's motherboards are more tolerant of different ram,
it makes sense to buy ram that is known to work and is supported.

 

[BrokenKB]

looks like the store was wrong and now they corrected the specs

thank you anyway