AMD Ryzen RAM scaling - performance effect in games
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jose2016
Very good article.
We appreciate the work done to see how ram influences ryzen 2.
MBTP
Awesome article! I just think the nomenclature on the graphs are not that good.
3733 mhz with how many GBs SR or DR how many slots etc...
Captain_Hook
tsunami231
Never really under stood double ranked vs single ranked? still not sure I do.
is DR using 4 slots to get say 16gb and SR using 2 slots to get 16gb?
I know general using all ram slots for say 16gb vs 2 general shows some gains, but the whole SR/DR never really made sense to me
gerardfraser
bobblunderton
Awesome article.
I believe I left roughly 10% performance on the table with my discount-bin dual-rank 3000mhz cl-15 32gb memory (2x16gb) on the el-cheapo Asrock x570 PG4.
Considering this is a content creation machine and not a gamer as it's primary intended purposes - not too shabby. I am still quite happy with performance, and not worried one bit about the 'missing' 10%, as it's still plenty good and worlds better than the 4790k it replaced. That 10% isn't going to make or break anything I do on here on the daily. Long before I get to ever needing that last drop of performance, I'll need 64gb of memory anyway. It's dubious at best if this cheap motherboard with it's bargain-basement price tag will even be stable at 3000mhz cl-15 with four sticks of dual rank memory on it anyways.
It's good to know that for those of us who wish to tinker, can expect to see some improvements up to the memory / IF divider cutoff. Sadly, my tinkering days are done, this machine runs at stock settings, as I cannot afford to affect stability in any way on my content creation box.
All the speed in the world does you NO good if you get even one hint of instability with it.
@gerardfraser Good content add with those videos.
OnnA
THX H.H. good read 😀
Im at 1900FLCK at 3800MHz CL16-17-17-15 4x8GB DDR4 using 3700X on Hero VI (Latency ~62-63ns)
Settings on good B-die (How to):
DRAM V. 1.4 up to 1.45v
SOC 1.125v or more if not posting (try 1.150v)
VDDG both at min. 0.975v up to 1.1v
[spoiler]
https://i.imgur.com/55s17Kn.jpg [/spoiler]
NCC1701D
kanenas
Great article safe subtimings vs fast you can have 7-10% more performance
this is my 2700x+gskill flarex 3200(xmp profile enabled) vs 2700x@4.4ghz+3466 flarex(tweaked with fast subtimings)
kanenas
Also i have notice that ryzen 1000 series using ryzen calculator gains the most performance vs 2000 and 3000.
kanenas
Gomez Addams
Terrific article guys. There is very good information here.
One thing I noticed is World War Z seemed to be the most sensitive game to memory settings with the highest values having a range of about 20% above the minimum. That is about twice the span seen in the others. That might be a game worth focusing on for further articles about fine tuning adjustments since the difference in results will be more apparent. It is good to see a variety of games tested but since the results are consistent among most of them I would prefer to see a wider variety of adjustments tested on fewer games.
asturur
lukas_1987_dion
Would Intel CPUs have similar results, I tried to set my 4000mhz, 19cl RAM as 1T (instead of default 2T) but PC would not even boot lol, so for now default settings.
Captain_Hook
kanenas
IchimA
Nice review ! Some +5 fps are quite good ... I had to stop at 3600 CL18 when I ordered mine but next time I will buy something better.
One question for HH / reviewer ... this test was made with best GFX available ... do these gains reproduce with a medium - high gfx ? like let's say 2600 - 2700 RT ?
liviut
guess my 3600 won the silicon lottery on the memory controller as i run for like half a year hynic cjr at 3800 1:1 cl 16
Goiur
As an average joe, im more than happy to know that a 3600 4x8gb cl 14/16 will work good enough lol
I wont be "wasting" 5 days tweaking memory for a 2% gain (5 fps? lol). If you have fun with it, good for you, enjoy your tweaking.
wavetrex
@Goiur Most people don't tune their cars either.
But those that do, certainly do it because they enjoy that... and it's not giving them more than a few % HP either, with A LOT more money invested in tuned parts for their car than just some software settings in BIOS.
You have to remember, tuning that memory is 100% free, and in most cases less damaging than CPU overclocking (which can reduce its life-span).
2%...7% for free, without any drawbacks ? I'll take it !