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Old Dec 15, 2019, 05:59 PM   #1
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Default DDR4 Memory Scaling Intel

Sup gays?

I am looking for a chart or guide showing Memory scaling for DDR4 speeds above 3200MHz. Preferably showing LOW FPS comparisons.

I found one for AMD off Gamers Nexus which is great but I am looking for one for Intel. Preferably for the 8700K/9900K showing memory scaling.

Anyone know of one?
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Old Dec 15, 2019, 07:36 PM   #2
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This seems to show most speeds in gaming and non gaming apps.

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Old Dec 15, 2019, 10:08 PM   #3
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DDR4 scaling on Intels is laughable for gaming.
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Old Dec 16, 2019, 08:59 AM   #4
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Memory certainly makes a big difference on Ryzen. I've done some testing myself lately and on a 2700X you can gain 20% performance going from 3200 XMP to 3466 with tweaked timings.

The HUB video makes it look pretty bad. Keeping the CL constant at 17 (which is terrible), there's only a 14% gain going all the way up to 4000 MHz from 3000 MHz. I'm not surprised to see little scaling beyond 3600 MHz. Honestly, the best bet is probably to go no higher than 3600 MHz. Going past that you start to run into IMC and board limitations and it's not worth the hassle for what looks to be only a couple percent of performance.

It would be interesting to know how tighter timings affects Intel though. I think the poor timings are hurting the HUB results a lot. Only 55K read speed at 4000 MHz is pathetic. You can get around that at 3466 MHz on Ryzen with tweaked subtimings.

I'll try to run a few tests on my 8700K system tomorrow to compare 3200 MHz XMP, 3600 MHz XMP and my fully tweaked 3733 MHz settings.

Last edited by Nagorak : Dec 16, 2019 at 09:08 AM.
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Old Dec 16, 2019, 09:16 AM   #5
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https://www.techpowerup.com/review/i...mark-analysis/

Not too much in it with Intel above 3200MHz....
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Old Dec 16, 2019, 09:21 AM   #6
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I am not concerned about average or max FPS. I'm looking at the Min-FPS average.

From the video that Greasy linked and the Gamers Nexus Ryzen 3000 series video you can see a very large increase in Min-FPS 10% - 20% increase. This will just make gaming seem smoother overall.

Thanks guys for the links.
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Old Dec 16, 2019, 09:34 AM   #7
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I believe 3200 with tweaked timings is currently the sweet spot. If you have an exceptional set of sticks, 3400 would likely also suffice.
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Old Dec 16, 2019, 09:46 AM   #8
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Originally Posted by Nunz View Post
I believe 3200 with tweaked timings is currently the sweet spot. If you have an exceptional set of sticks, 3400 would likely also suffice.
3200 CAS 14 Performs that same as 3600 CAS 16 is what I am seeing.
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Old Dec 16, 2019, 10:50 AM   #9
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Yeah. 3400 CL14 is the sweet spot I think. It's difficult to get 3600 timings down, but I've noticed sets will handle it.
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Old Dec 16, 2019, 11:41 AM   #10
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I am on 3200 CL16. Honestly can’t tell crap worth difference in gaming compared to my 2666 C15.
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Old Dec 16, 2019, 12:01 PM   #11
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Quote:
Originally Posted by KAC View Post
I am on 3200 CL16. Honestly can’t tell crap worth difference in gaming compared to my 2666 C15.
That's because you don't have a 2080Ti.
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Old Dec 16, 2019, 12:59 PM   #12
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Quote:
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That's because you don't have a 2080Ti.
Shots fired!
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Old Dec 16, 2019, 11:12 PM   #13
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Quote:
Originally Posted by Hapatingjaky View Post
3200 CAS 14 Performs that same as 3600 CAS 16 is what I am seeing.
If I were you I'd just buy Samsung b-die 3200 CL14 (G.skill Tridentz/Ripjaws, Team Dark Pro, etc), in any case. It will equally run at 3600 CL16 since those are basically equivalent timings, but it will cost a few dollars less. You might even be able to get 3200 CL14 to do 3600 CL14 or CL15 with some more voltage. And because it's b-die it will also have tight subtimings.

Anything beyond 3200 CL14/3600 CL16 the price just starts spiking upwards, and 1) it doesn't offer that much more performance, 2) it's very possible that the lower binned memory can do higher frequency/tighter timings anyway (3200 CL14 is actually a pretty high quality bin to start with), 3) as you go past 3600 MHz you start to encounter more board or CPU limitations.

Micron E offers more bang/buck, but on Intel it's hindered by the fact you can't set individual timings for TRCDRD, TRCDWR and TRP, so you get stuck running something like 14-19-19 or 16-19-19 whereas on Ryzen you can run 14-14-19-14. Also it can't do low TRFC or TRC either, so overall performance is weaker.

Last edited by Nagorak : Dec 16, 2019 at 11:18 PM.
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