Question Memory latency/speed and gaming performance

[Mac34]

Hi!


I have a question about memory latency and gaming performance.

My computer: Acer x34p@120hz, 9900k, 2080ti, Asus z390-F

This is the memory currently installed: HyperX Fury 3200mhz 18-21-21.
https://www.komplett...2gb#productinfo

If I upgrade to G.Skill Trident Z 3200mhz cl14, will I get a noticeable improvement in gaming performance (higher/smoother framerate)?
https://www.komplett...gb-32gb-3200mhz
Or vs. a G.Skill Trident Z 4000mhz cl19?
https://www.proshop.no/RAM/GSkill-T...risjakt&utm_medium=cpc&utm_campaign=pricesite

Any help would be greatly appreciated, thanks! 🙂

 

[Dasa2]

3200c14 overclocked to 4000c17 will increase FPS by around 10-20%
Overclocking the CPU will increase performance by ~5%
Total increase to FPS if you are CPU limited would be ~15-25% which may be noticable unless you are GPU limited in the games you play or already have ample FPS in which case it wont.
It can take a fair bit of work fine tuning RAM to get the best out of it but there is some good info here.
https://www.overclock.net/forum/5-i...-intel-ddr4-24-7-memory-stability-thread.html
Although focused on Ryzen this is also a good source of info
https://www.techpowerup.com/review/amd-ryzen-memory-tweaking-overclocking-guide/

Without overclocking CPU and RAM I doubt you would notice the difference.

 

[Mac34]

So I guess, going from my present 3200mhz cl18 ram to 4000 cl17 will bring an even bigger improvement. Though, 10-20% sounds almost too good to be true, and the gaming benchmarks in the second link are not really applicable, since those are with a very low resolution (I'm running games at 3440x1440 with mostly maxed out settings).

I kinda like the HyperX ram, it runs at 3200mhz without overclocking the CPU's IMC (which makes for a more quiet PC), so I'm still mulling over whether or not it's worth it. I will check the memory thread link, and do some further research. Thanks for the help!

 

[Dasa2]

Sorry when I said 3200c14 overclocked to 4000c17 will bring 10-20% that was vs 3200c18
3200c14 vs 4000c17 would be ~7%
Any part of the game where you are CPU limited which would be rare at 3440x1440 you will see the full 10-20% but when GPU limited which you will be most the time it will be 0%

 

[Mac34]

Thanks, that makes much more sense. Yeah, since I game at 3440x1440 with graphics settings mostly maxed out, I'm probably not gonna notice much of a difference. Having a cooler and quiet running machine is worth a few less fps anyway, If gaming at 1080p with a 200-240hz monitor, then I guess high memory speed makes more sense.

I do wonder how HyperX I have can run at 3200mhz (18-21-21), and not overclock the CPU's IMC, unlike these other RAM types which needs XMP enabled to hit their frequency target (tighter timings?)