4000mhz 18-22-22 VS 3600mhz 18-19-19-39

[Mahbub]

so i have i5 8600k and gtx 1080 and 2400 mhz ram right now, i am thinking to upgrade my ram, which is better 4000mhz 18-22-22 VS 3600mhz 18-19-19-39?

[Mister Woof]

Theoretically the 4000mhz will but it probably won't manage 4000mhz on the chip, and performance is like 1-2% better in games while costing around 50% more.

[Mahbub]

1 minute ago, Mister Woof said:

Theoretically the 4000mhz will but it probably won't manage 4000mhz on the chip, and performance is like 1-2% better in games while costing around 50% more.

The 3600 costs 133$ and 4000 costs 173$

[Mister Woof]

Just now, Mahbub said:

The 3600 costs 133$ and 4000 costs 173$

personally i'd rather have a pizza and the 3600 but go for it

[Mahbub]

2 minutes ago, Mister Woof said:

personally i'd rather have a pizza and the 3600 but go for it

I actually wanna squeeze all d performance i can...

[Mister Woof]

3 minutes ago, Mahbub said:

I actually wanna squeeze all d performance i can...

I get it, I really do. But you're using an 8600k on an entry level Z370. 

Going from 2400 to 3200/3600 will be a perceivable gain for not much money; beyond that (on non-guaranteed memory speed) and you are better off spending your money into other aspects of your system to improve performance.

[Mahbub]

5 minutes ago, Mister Woof said:

personally i'd rather have a pizza and the 3600 but go for it

I just saw a ryzen vdo where 3600 performed better than 4000, is it same with intel i5 8600k? Someone in the comments said because 4000 has loose timings, so like am I gonna see better performance with 3600 than 4000?

[Mister Woof]

Just now, Mahbub said:

I just saw a ryzen vdo where 3600 performed better than 4000, is it same with intel i5 8600k? Someone in the comments said because 4000 has loose timings, so like am I gonna see better performance with 3600 than 4000?

They are not the same, but also these videos really must be taken with a grain of salt. It depends. Others who are more knowledgeable than me have already chimed in with the minutiae of memory latency and speed, but suffice to say that diminishing returns is a real thing that you need to consider as well as your intended use case.

[Mahbub]

Just now, Mister Woof said:

I get it, I really do. But you're using an 8600k on an entry level Z370. 

Going from 2400 to 3200/3600 will be a perceivable gain; beyond that (on non-guaranteed memory speed) and you are better off spending your money into other aspects of your system to improve performance.

I think i will go with thr 3600 then.. also from the post, how much better is the latency numbers on the 3600?

[Mahbub]

Just now, Mister Woof said:

They are not the same, but also these videos really must be taken with a grain of salt. It depends. Others who are more knowledgeable than me have already chimed in with the minutiae of memory latency and speed, but suffice to say that diminishing returns is a real thing that you need to consider as well as your intended use case.

Okk. I probably will go with 3600 then.. also whats non guaranteed memory speed? Like 4000 aint guaranteed on a ram rated at 4000 mhz?

[Mister Woof]

4 minutes ago, Mahbub said:

Okk. I probably will go with 3600 then.. also whats non guaranteed memory speed? Like 4000 aint guaranteed on a ram rated at 4000 mhz?

just get a kit of 3600 cl16. it's pretty cheap and should perform well.

[Mahbub]

2 minutes ago, Mister Woof said:

just get a kit of 3600 cl16. it's pretty cheap and should perform well.

Ok one confusion..  the 16 which u say.. it means the first number in latency right? If thats so in my place all the ram sticks of 3600 are either cl18 or cl19.. none is cl 16.. what to do now then?

[Mister Woof]

1 minute ago, Mahbub said:

Ok one confusion..  the 16 which u say.. it means the first number in latency right? If thats so in my place all the ram sticks of 3600 are either cl18 or cl19.. none is cl 16.. what to do now then?

what country are you in

[Mahbub]

Just now, Mister Woof said:

what country are you in

Ohh wait no.. i found one..  its Gskill trident z neo 16 gb..  tested katency = 16-19-19-39 ... So is this cl16? Is this good?

[porina]

11 minutes ago, Mahbub said:

I just saw a ryzen vdo where 3600 performed better than 4000, is it same with intel i5 8600k? Someone in the comments said because 4000 has loose timings, so like am I gonna see better performance with 3600 than 4000?

Zen 2 is complicated in that the various clocks in the CPU don't have to be kept synchronus. To hit 4000 ram, you usually have to go async which adds latency. This is not a factor on Intel.

 

9 minutes ago, Mahbub said:

Okk. I probably will go with 3600 then.. also whats non guaranteed memory speed? Like 4000 aint guaranteed on a ram rated at 4000 mhz?

The ram is rated by its manufacturer to run at that speed. The CPU from either side is NOT rated to run at such high speeds, although in practice most do.

 

 

BTW I have a Kit of Kingston HyperX RGB something or other rated at 4000. The XMP is 4000-19-21-21, but also has a lower one at 3600-17-18-18. On both Intel and AMD system the 3600 profile gives better real world results than the 4000 profile.

[Mahbub]

2 minutes ago, Mister Woof said:

what country are you in

https://mdcomputers.in/g-skill-trident-z-neo-16gb-ddr4-3600mhz-rgb-f4-3600c16d-16gtznc.html

 

this one

[Mahbub]

1 minute ago, porina said:

Zen 2 is complicated in that the various clocks in the CPU don't have to be kept synchronus. To hit 4000 ram, you usually have to go async which adds latency. This is not a factor on Intel.

 

The ram is rated by its manufacturer to run at that speed. The CPU from either side is NOT rated to run at such high speeds, although in practice most do.

 

 

BTW I have a Kit of Kingston HyperX RGB something or other rated at 4000. The XMP is 4000-19-21-21, but also has a lower one at 3600-17-18-18. On both Intel and AMD system the 3600 profile gives better real world results than the 4000 profile.

well m gonna get this then https://mdcomputers.in/g-skill-trident-z-neo-16gb-ddr4-3600mhz-rgb-f4-3600c16d-16gtznc.html

[Mahbub]

17 minutes ago, Mister Woof said:

just get a kit of 3600 cl16. it's pretty cheap and should perform well.

https://mdcomputers.in/g-skill-trident-z-neo-16gb-ddr4-3600mhz-rgb-f4-3600c16d-16gtznc.html

 

Is this CL16?

[Mahbub]

10 minutes ago, porina said:

Zen 2 is complicated in that the various clocks in the CPU don't have to be kept synchronus. To hit 4000 ram, you usually have to go async which adds latency. This is not a factor on Intel.

 

The ram is rated by its manufacturer to run at that speed. The CPU from either side is NOT rated to run at such high speeds, although in practice most do.

 

 

BTW I have a Kit of Kingston HyperX RGB something or other rated at 4000. The XMP is 4000-19-21-21, but also has a lower one at 3600-17-18-18. On both Intel and AMD system the 3600 profile gives better real world results than the 4000 profile.

https://mdcomputers.in/g-skill-trident-z-neo-16gb-ddr4-3600mhz-rgb-f4-3600c16d-16gtznc.html

 

Is this a CL16 ram?

[Mister Woof]

Just now, Mahbub said:

https://mdcomputers.in/g-skill-trident-z-neo-16gb-ddr4-3600mhz-rgb-f4-3600c16d-16gtznc.html

 

Is this CL16?

looks like it from the link text

 

https://www.gskill.com/product/165/326/1562840073/F4-3600C16D-16GTZNC-Overview

[Mahbub]

1 minute ago, Mister Woof said:

looks like it from the link text

 

https://www.gskill.com/product/165/326/1562840073/F4-3600C16D-16GTZNC-Overview

To make it easier for u

 

TESTED LATENCY = 16-19-19-39

 

so its CL16 right?