Confused with RAM frequency

[w20grippy]

Product Number: B3J78PA#UUF

I have two ram slots and both are full with two memory chip (ram). I don't know with what bus speed they came in and trying to discover the ram speed inside the winodws. i had to follow windows taskmanager help and another software called speccy. Eventaully, I got two confusing values here. Let me find out the exact value of it. 

Or, take a look here: https://screenpresso.com/=1PELb

[Huffer · Accepted solution]

Yeah it seems confusing but you have to keep in mind it is dual data rate. The processor "fetches" data twice per cycle. So the motor is spinning at 800 mhz but double that and it makes 1600. Some monitors report it as 1600 for the speed but that is actually not completely right. 800 is the speed. Your laptop is running exactly as expected. 

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[w20grippy]

What memory (RAM) can I use to maxout the speed for my device (i5 3210M)?

[iomare]

Hi,

Take a look at this article which describes the functioning of DDR3 and it all depends what we consider the "motor" to be.

https://en.m.wikipedia.org/wiki/DDR3_SDRAM

Hope it helps,

David

[iomare]

Hi,

The max speed is 1600 Mhz for your system. You can see in service manual

http://h10032.www1.hp.com/ctg/Manual/c03582006

If you insert higher speed RAM it will be downgraded to this speed.

Hope it helps,

David

[Huffer]

You are already maxxed in other words.