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[SOLVED]3200 cl16 vs 3600 cl18 — the better choice?

• Thread starter Thread starter enmac
• Start date Start date Oct 17, 2019

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enmac

Oct 17, 2019 16 1 15 Hello! I read that the formula for calculating the memory latency in nanoseconds is this: (CAS latency / RAM clock speed) * 2000 = latency in nanoseconds 3200MHz cl16 -> (16/3200)*2000 = 10 nanoseconds 3600MHz cl18 -> (18/3600)*2000 = 10 nanoseconds Does this mean that if the Motherboard supports both 3200MHz and 3600MHz, it doesn't matter if you choose to use 3200MHz cl16 or 3600MHz cl18 ? In both cases you will get the same latency and the same performance? Or still one of them is the better choice? EDIT: I want to know, if you have to make a choice between 3200MHz cl16 and 3600MHz cl18, which of them is the better choice? Thanks! Last edited: Oct 18, 2019 Solution Either is fine but the 3600 C18 should be faster in Benchmarks and slightly faster (but probably not noticeable) in real world use. But if I was buying RAM for my 3700x system I would look for a 3600 C16 kit. Sort by date Sort by votes

Phaaze88

Titan

Ambassador Dec 30, 2016 21,535 5,718 104,690 Keep it simple: Frequency > CL. The gains in memory bandwidth are going to be greater than a measurement of time you will never notice.

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Reactions: Bassman999 and enmac Upvote 1 Downvote

enmac

Oct 17, 2019 16 1 15

Phaaze88 said: The gains in memory bandwidth are going to be greater than a measurement of time you will never notice. Click to expand...

Does it mean that the 3600MHz cl18 would be the better choice in this case? Upvote 0 Downvote

DMAN999

Dignified

Ambassador Apr 17, 2019 3,279 1,000 16,940 Is there a reason you aren't considering a 3600 C16 kit like this one ? https://www.gskill.com/product/165/184/1562831134/F4-3600C16D-16GVKC-Overview What motherboard and CPU do you have ? You can use the G.Skill Configurator to look for 3600 C16 kits that are compatible with your MB: https://www.gskill.com/configurator

• 

Reactions: enmac Upvote 0 Downvote

enmac

Oct 17, 2019 16 1 15 Thank you for your reply and your suggestions. My question is actually general. I want to know it as a "general rule". That's why in my example I used 3200MHz cl16 and 3600MHz cl18, both have different frequencies and different CL, but they have the same latency in nanoseconds. I want to know, if you have to make a choice between 3200MHz cl16 and 3600MHz cl18, which of them is the better choice? Upvote 0 Downvote

DMAN999

Dignified

Ambassador Apr 17, 2019 3,279 1,000 16,940 Either is fine but the 3600 C18 should be faster in Benchmarks and slightly faster (but probably not noticeable) in real world use. But if I was buying RAM for my 3700x system I would look for a 3600 C16 kit.

• 

Reactions: enmac Upvote 2 Downvote Solution

Phaaze88

Titan

Ambassador Dec 30, 2016 21,535 5,718 104,690

enmac said: Does it mean that the 3600MHz cl18 would be the better choice in this case? Click to expand...

Yeah. You can also look for a 3600 C16 kit, but keep in mind: -Higher frequency = higher price -Lower CL = higher price -Tighter primary timings = higher price How much are you willing to spend?

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Reactions: DMAN999 and enmac Upvote 1 Downvote

enmac

Oct 17, 2019 16 1 15 Thank you for your replies!

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