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For a Ryzen 2400G build: DDR4 3200MHz CL16 or 3000MHz CL15?

CL16 and CL15 at those respective speeds are effectively the same latency. Get the faster memory as GPUs prefer bandwidth over latency because they're geared to crunching a ton of data at once.

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Posted · Original PosterOP

More specifically, between these two:

https://www.gskill.com/specification/165/185/1567584549/F4-3200C16D-16GIS-Specification

https://www.gskill.com/product/165/184/1536054483/F4-3000C15D-16GVKB-Overview

 

mobo: msi B450M PRO-VDH, cpu 2400G with possible upgrade to 3600 at the end of the year.

 

3000 CL15 is 10€ more. My suspicion is that this is exactly the same thing, just when you take the 3200 CL16 down you can get CL15 but we can never be sure :)

 

Any guesses what would perform better or just get the cheaper one? I'm already disappointed because I wanted a 3600 CL16 but it's out of stock for a while now.

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Posted (edited) · Best Answer

CL16 and CL15 at those respective speeds are effectively the same latency. Get the faster memory as GPUs prefer bandwidth over latency because they're geared to crunching a ton of data at once.

Edited by Mira Yurizaki
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Just get the cheaper one, 3200MHz CL16. 


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Posted · Original PosterOP

I did a little bit more research into this whole DDR / Ryzen performance and crunched the numbers on this article: https://www.tomshardware.com/reviews/amd-ryzen-3000-best-memory-timings,6310.html

 

Zp1xEw4.png

 

 

My main takeaway is that nothing matters if kept within 'sane bounds'. Real world gaming performance won't change between 3200 CL16 / 3600 CL18, probably even 3000 CL16.

 

Also this was very specific tests and I only analyzed 1440p performance. It clearly shows there are a lot of variables that can impact all of this so just don't worry and get the cheapest sticks within reason :) It's a bit impossible to guess if for your specific CPU, game, resolution and settings the better synthetic DDR performance will matter or not.

 

One thing is for sure: all 'premium' DDR doesn't seem to be worth it in terms of price/performance. By premium I mean everything that costs +-25€ more than the 'standard' 3200 CL16.

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