[SOLVED] Does two 800Mhz RAM is equal to 1600Mhz

[Mubasher hassan]

Hello
I have Intel® Core™ i5-3340M Processor in my Laptop with Single Channel 800Mhz (4GB) RAM. Currently I am thinking of 1600Mhz RAM speed.
Should i install two 800Mhz or two 1600Mhz RAMS? I also want dual channel mode.

 

[Lutfij]

No, it doesn't. Since you're on DDR3 architecture for ram, it's dual pumped meaning 800MHz on CPU-z = 1600MHz. Make and model of your laptop? If you want to upgrade the ram, you're going to have invest in a ram kit, not mix and match.

 

[bignastyid]

2 800mhz ram does not equal 1600mhz. You will be limited by what the laptop supports. What's the model of the laptop?

 

[Mubasher hassan]

No, it doesn't. Since you're on DDR3 architecture for ram, it's dual pumped meaning 800MHz on CPU-z = 1600MHz. Make and model of your laptop? If you want to upgrade the ram, you're going to have invest in a ram kit, not mix and match.

@Lutfij Model is Dell Latitute E6430
RAM type is DDR3/L/-RS 1333/1600
Please recommend a RAM Kit

 

[beers]

From a bandwidth perspective you receive double with dual channel, but that's more of a function of having another memory channel's worth of bandwidth.

It'd be equivalent if your single stick was double clocked from a throughput perspective, but not from a latency one.

What are you using to read the clock? I actually haven't seen real PC3-6400 anywhere. If it's the CPU-Z value you're referencing then 800 is already DDR3 1600.

 

[Zerk2012]

@Lutfij Model is Dell Latitute E6430
RAM type is DDR3/L/-RS 1333/1600
Please recommend a RAM Kit

https://www.crucial.com/compatible-upgrade-for/dell/latitude-e6430

 

[Mubasher hassan]

From a bandwidth perspective you receive double with dual channel, but that's more of a function of having another memory channel's worth of bandwidth.

It'd be equivalent if your single stick was double clocked from a throughput perspective, but not from a latency one.

What are you using to read the clock? I actually haven't seen real PC3-6400 anywhere. If it's the CPU-Z value you're referencing then 800 is already DDR3 1600.

@beers i am reading the clock by CPU-Z

SPD==> Max Bandwidth PC3-12800 (800Mhz)
and CAS Latency rate is 11.0 clocks

 

[beers]

@beers i am reading the clock by CPU-Z

SPD==> Max Bandwidth PC3-12800 (800Mhz)
and CAS Latency rate is 11.0 clocks

Yep then that's already DDR3 1600

You might be able to throw a similar 4G stick with the same frequency/timings (ideally same model #). Most people here will suggest a full 2x4G matched kit however.