Checking RAM or memory speed on Windows 10 is really simple, and in this video
you're going to find out more than that, You're going to find out if you really
getting the speeds that you've paid for. Without wasting any time, let's get
begin! To do this, all you have to do is right-click an empty spot
from the taskbar and then select Task Manager. If you see this small screen
click more details. Now, click the performance tab and then go to the
memory section from the left side. Now look at the bottom-right corner of the
window. What do you see? Now you can see the speed of your RAM. As
you can see, I have ddr3 RAM my speed here is about 1600
megahertz and your speed may vary depending on what generation of RAM you
have such as DDR2, DDR3, DDR4, DDR5 and so on. But, Windows 10's
Task Manager only tells you part of the situation. There is another factor we need to
take into consideration. That factor s latency, specifically CAS latency.
Checking CAS latency is really simple and to do that we are going to
download a free interesting little program called CPU-Z. There is a link to
it in the video description. Once you have downloaded and install CPU-Z, go to
the memory tab and now where you see CAS latency or CL, there it is that's
the CAS latency! So, as you can see, in my computer, with a speed of 1600
megahertz my CAS latency is 11. But, wait, something is wrong here from the
Task Manager. It said my clock speed was 1600 and here it says it's 800. Well,
remember the principle of RAM: dual channel memory and double data rate.
Because CPU-Z is more specific, it gives me to the single data rate. All right!
Now the question is how do I use CAS latency and clock
speed to figure out which type of RAM to buy. After all, speed does not tell
you everything and CAS latency does not tell you everything. To figure this out,
all you do is divide CAS latency by the clock speed. The lower the result. the
better. All right! Let's try it out. We are going to try it out on my computer first.
An then we are going to act like we are buying RAM or memory online so we can
compare which RAM is best for the price. In my situation. I have a clock speed of 1600
and a CAS latency of 11. So all I have to do is divide 11 by 1600. Now let me open the
calculator and do the math. And there you go! This is the value.As you can see,
it's some weird decimal number. But, like I said, the smaller of value the better.
Now if you want an easier number, you can always multiply that by 2000.
It will give you the true latency. But, again, the key is this: the
lower the value the better. All right! let's try this out. Let's pretend to be
buying RAM or memory. To do this, we are going to visit Newegg and we are going to try
to buy some DDR4 memory. All right! I've already selected some RAM and
all of them have a clock speed of 2666 megahertz. Now when considering CAS
latency, let's find out which one of them is faster. All right! As you can see, in
the first two sets of RAM, there is a price difference. But is that price
difference because of aesthetics or the way they look or because of the CAS latency
what's nice about Newegg is that it's really easy to figure out the CAS
latency. if I go to the specifications, it tells me
that CAS latency. For, this RAM module, it is.16. Now let's
do the simple math. Divide the CAS latency, 16 by the clock speed, 2666.
As you can see, this is the value. And, of course, if you want an easier
value you can multiply it by 2000. And there you go! This is the
true latency. All right! Now let's try the next set of RAM. As you can see it has the
same clock speed, but it is cheaper. If I go to specifications, you can see
it has the same CAS latency. Therefore, you don't even have to do any
math. You will get the same performance out of this RAM. So we can conclude that the
first set that you saw is more expensive because of the way it looks. It
has extra fancy features. So, now you can really really see the
value of the RAM. Let's try this set of RAM. Again, same clock speeds, but
different CAS latencies. Well, this one, the cheaper one has a CAS latency of
19 and this one which is more expensive has a cast latency of 15
again the same clock speed. Therefore, clearly, the more expensive
one gives you the better performance. And finally let's try this one. It has a
clock speed of 3200 and a CAS latency of 16. Again, simple math: 16, the CAS latency
divided by 3200, the clock speed and this is the result I get. Again, for an
easier value, multiply by 2000. And here you go! This is the true latency
A true latency of 10. So, if your motherboard can support that, then this
will definitely yield better performance. There you go! that's it. This is how
you check RAM speed on Windows 10.
Remember you can use the Task Manager
figure out your overall RAM speed. And then let's say you want to figure out
the true latency, then you can use CPU-Z to check for the CAS latency and do the
basic math which is cast agency divided by the clock speed multiplied by 2000 for a
simpler value. And finally, let's say you are trying to buy a new RAM and you are trying to
compare it with that of your computer, then you can use those calculations to
make an effective choice. If you have any suggestions as to what to look for
to by good RAM, please leave those in the comments below. So for more simple, easy,
straightforward, yet informative videos like this please subscribe and thanks
for watching.