How do i check ram speed in CPU-z?

[mkristian]

so i got a NB frequency of 1900mhz more or less and a dram frequency of 665.4mhz. My FSB Dram is 3:10.

I have googled this but all i could find was info on what programs to use, not actually how i can find out the speed of my ram.

I just want to know if my ram is 1033/1300/1600 speed. Is it 1330? Do i multiply the dram frequency by 2 or something, that results in roughly 1300mhz?

Its a 4gb single stick ram and its kingston.

 

[Tradesman1]

Quad indicates the number of sticks (4) you can run the 4 in either true quad (on a 2011 variant mobo) or in dual on a dual channel mobo (number of channels have nothing to do with freq/data rate. If the true freq of the DRAM is 800 then (since it's DDR (DOUBLE data rate)) you take true freq (800) x 2 = effective (1600)

 

[Mitul114]

What does the following mean?

Type: DDR3
Channel: Single
Size 954 MBytes
DRAM Frequency: 399.0 MHz
FSB : DRAM: 1:2

 

[sciengart]

i see 667mhz. Nowhere does it tell me if i have 1300/1600 speed ram

With Dual Channel you multiply that number by 2; so your speed is 1334MHz.

Why did no one correct you?
Dual channel has nothing to do with why it only shows half the speed.

the DD in DDR stands for DOUBLE DATA, and means it can send and receive data twice per clock.
When you buy ram, your speed, much like threads in a cpu, is not actually your speed.
We just refer to it that way.

If 1 man can carry 1 brick at 100 feet per minute, then your brick transfer rate is 100 feet per minute.
If he takes two bricks then it is easier to say 1 brick @ 200 feet per minute for future calculations, and simplicity.

Double data rate is exactly that.
For simplicity we claim speeds are twice what they are, as it is easier to say you have 2666mhz of ram, than 1333mhz of ram carrying two data packets per clock.

I want to make something ABUNDANTLY CLEAR to new comers. YOUR CHANNELS DO NOT DOUBLE YOUR SPEED.
You will not see 666.5 in spd for CPUZ when running 2666 memory in quad channel.

If 5 men could walk side by side down the road carrying their bricks, if the road was twice as wide, you could have up to 10 men walking side by side.
They DO NOT WALK DOWN THE ROAD FASTER. But more of them can walk together, and thus double the data can be transferred.

Now logically the dd in ddr is technically double bandwidth, as is increasing your channels. PER CLOCK.

None of them are actually an increase in speed. They are all merely increases in load capacity.
However... and this is important. When we talk about data transfer, if you copy a file, it will first fill both "SLOTS" of the "DD" (just epic laymens terms here) First. So you will ALWAYS take advantage of the double data rate when using your ram.

However channels split their load. But move the data at the same speed. This improves multitasking dramatically, but doesnt help much when doing single tasks.

For example, if you copy a 10gb file, and your spd is 1000mhz (500mhz x 2) and you have a quad channel setup, you will transfer that file, at 1000mhz.
If you some how split that file into four, and transferred each of them in their own process (providing no other bottlenecks exist, such as cpu, hub, usb or lan , n/s bridge) then each portion will utilize 1000mhz of transfer speed each resulting in 4x the transfer speed.

So when you buy your next board, remember this.
Again this is all relative to many factors. There are always bottlenecks in every pc. Dont let your ram be a bottleneck!

 

[Gam3r01]

Why did no one correct you?
Dual channel has nothing to do with why it only shows half the speed.

the DD in DDR stands for DOUBLE DATA, and means it can send and receive data twice per clock.
When you buy ram, your speed, much like threads in a cpu, is not actually your speed.
We just refer to it that way.

If 1 man can carry 1 brick at 100 feet per minute, then your brick transfer rate is 100 feet per minute.
If he takes two bricks then it is easier to say 1 brick @ 200 feet per minute for future calculations, and simplicity.

Double data rate is exactly that.
For simplicity we claim speeds are twice what they are, as it is easier to say you have 2666mhz of ram, than 1333mhz of ram carrying two data packets per clock.

I want to make something ABUNDANTLY CLEAR to new comers. YOUR CHANNELS DO NOT DOUBLE YOUR SPEED.
You will not see 666.5 in spd for CPUZ when running 2666 memory in quad channel.

If 5 men could walk side by side down the road carrying their bricks, if the road was twice as wide, you could have up to 10 men walking side by side.
They DO NOT WALK DOWN THE ROAD FASTER. But more of them can walk together, and thus double the data can be transferred.

Now logically the dd in ddr is technically double bandwidth, as is increasing your channels. PER CLOCK.

None of them are actually an increase in speed. They are all merely increases in load capacity.
However... and this is important. When we talk about data transfer, if you copy a file, it will first fill both "SLOTS" of the "DD" (just epic laymens terms here) First. So you will ALWAYS take advantage of the double data rate when using your ram.

However channels split their load. But move the data at the same speed. This improves multitasking dramatically, but doesnt help much when doing single tasks.

For example, if you copy a 10gb file, and your spd is 1000mhz (500mhz x 2) and you have a quad channel setup, you will transfer that file, at 1000mhz.
If you some how split that file into four, and transferred each of them in their own process (providing no other bottlenecks exist, such as cpu, hub, usb or lan , n/s bridge) then each portion will utilize 1000mhz of transfer speed each resulting in 4x the transfer speed.

So when you buy your next board, remember this.
Again this is all relative to many factors. There are always bottlenecks in every pc. Dont let your ram be a bottleneck!

As nice as all this info is, this thread is 8 years old at this point.
Closing it now.