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AMD Ryzen Fabric Clock 1467Mhz (DDR4 2933Mhz) vs Fabric Clock 1933Mhz (DDR4 3866Mhz)in couple games

gerardfraser

gerardfraser

gerardfraser

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EDIT: Jan 22 2020 Added 1920x1080 for those who thought first test was useless at 2560x1440

BF5 and GTAV 1920x1080


Just want to say all results are within margin of error and are the same for both resolutions 1920x1080 and 2560x1440 and will be the same for 98% of the PC games people play.

Want the best out of your system ram,fine tune Ram .I do not play at 1280x720 or 1920x1080. If you have normal gear tune your ram and put cash toward better GPU.

Tested a old game and new game at 1920x1080 and 2560 x1440 on AMD Ryzen 3800X.
The test is to show that tuned timings for your DDR4 Ram is more important than actual fabric clock on AMD Ryzen.

So for the people building a Ryzen system and can google or have a little knowledge, it may be advisable to pick a good value ram and tune up that ram or for the people with DDR4 3000Mhz ram there is no need to waste money buying DDR4 3800Mhz ram,thinking your gaming on AMD Ryzen system will be better.

I just could not be bothered testing a bunch of games ,as I have done this many times and results are always the same.

So I set CL12 DDR4 2933 Mhz vs CL16 DDR4 3866Mhz both have tight ram timings .
The memory clock (mclk), the memory controller clock (uclk), and the infinity fabric clock (fclk) are all synced for best results 1:1:1.
You can also run Ram at 1:1:2 and still have great results.

Of course I do not care what you do with your ram,I am just trying to help out someone who needs the help by showing actual video and how it does work when PC gaming.

Since I am not using a capture card and just Nvidia shadowplay with all task running,outcome may be different than with a capture card.

Computer and video editor used
♦ CPU - AMD 3800X With MasterLiquid Lite ML240L RGB AIO
♦ GPU - Nvidia RTX 2080
♦ RAM - G.Skill Trident Z 16GB DDR4(F4-4000C18D-16GTZ) (2x8)
♦ Mobo - MSI X470 - Gaming Plus(E7B79AMS.AA0-AMD ComboPI1.0.0.3)
♦ SSD - NVME SSD Intel 512GB
♦ DSP - LG 27" 4K UHD 5ms GTG IPS LED FreeSync Gaming Monitor (27UD59P-B.AUS) - Black
♦ PSU - Antec High Current Pro 1200W
VIDEO INFORMATION
► FPS Monitoring : MSI Afterburner/RTSS
► Gameplay Recorder : Nvidia Shadowplay
► Edit Videos : VSDC Free Video Editor http://www.videosoftdev.com/
2560x1440 video only
RDR2
Sleeping dogs 4:20
Timings/Voltages 6:05
 
Last edited:
Both those games are GPU heavy while at 2560x1440 they push the 2080 at 100% constantly.

To see the difference at 2560x1440 CPU heavy games are requires like X4, ESO, TWW2.
 
And if you are gaming at 4K I imagine it makes **** all difference :p

I am never CPU limited due to capping my fps to 60 :D
 
Panos said:
Both those games are GPU heavy while at 2560x1440 they push the 2080 at 100% constantly.

To see the difference at 2560x1440 CPU heavy games are requires like X4, ESO, TWW2.
Click to expand...

This, the GPU, not the CPU and by extension the faster memory is the bottleneck here.
 
Almost useless test playing GPU bottleneck games at high resolutions.

All it proves is that IF you have a weak GPU then you don't need fast or low latency RAM.

All you've done is create a scenario where the CPU performs it's work and then waits on the GPU - putting in faster RAM won't make any difference, the CPU is already the fastest in the chain of command.

Re-do this test at 1080p or 720p with CPU heavier games - where the GPU is the fastest in the chain of command and is waiting on the CPU, then using fast RAM helps because it makes the CPU get the data it needs quicker so the GPU has to wait less.
 
Grim5 said:
Almost useless test playing GPU bottleneck games at high resolutions.

All it proves is that IF you have a weak GPU then you don't need fast or low latency RAM.

All you've done is create a scenario where the CPU performs it's work and then waits on the GPU - putting in faster RAM won't make any difference, the CPU is already the fastest in the chain of command.

Re-do this test at 1080p or 720p with CPU heavier games - where the GPU is the fastest in the chain of command and is waiting on the CPU, then using fast RAM helps because it makes the CPU get the data it needs quicker so the GPU has to wait less.
Click to expand...
So essentially unless one games at potato resolutions, faster RAM makes **** all difference? Funny thing is some make it sound like the faster RAM will always help, but it just ain’t true from what I can see.

I don’t remember the last time I saw my CPU being 100% utilised in a game due to gaming at 4K for example.
 
Even gaming at 4k tuned timings help improve the lows, it might only be a couple of percent but every bit helps.
 
TNA said:
So essentially unless one games at potato resolutions, faster RAM makes **** all difference? Funny thing is some make it sound like the faster RAM will always help, but it just ain’t true from what I can see.

I don’t remember the last time I saw my CPU being 100% utilised in a game due to gaming at 4K for example.
Click to expand...

I have 2, 4K G-sync compatible monitors hooked up to my gaming PC. It is clear to me that some people do not get what I posted ,which is fine. I will stick by what I said in post,there is always people who will have 9900k and 2080ti that play on low settings at 1920x1080. That is fine also.
I do not play at 1280x720 or 1920x1080,nor should people with best CPU's and GPU's.If you have normal gear tune ram and put cash toward better GPU.
Click to expand...
 
humbug said:
Massive amount of OSD info, difficult to see FPS that gain the GPU is running at 95 to 97%.
Click to expand...

Sorry the video is 4k on my end,I can see it.I took a screenshot for you from video,let me know if it is the right spot with the correct lighting.I know you know this,click on screenshot for 4k image.
 
Out of interest can you do a comparison at 1080P, i'd be interested to see if the memory overclock helps where the GPU is not the bottleneck, thanks :)
 
Interesting results in BFV, well everything else too.

Your system seems to gain little, while hardware unboxed has significant
gains
 
Strange results OP. I don’t think you are helping out if you’re results are at odds with others.

Maybe post all the details of your configuration and we can see what is going wrong for you?
 
Grim5 said:
Interesting results in BFV, well everything else too.

Your system seems to gain little, while hardware unboxed has significant
gains
Click to expand...

jigger said:
Strange results OP. I don’t think you are helping out if you’re results are at odds with others.

Maybe post all the details of your configuration and we can see what is going wrong for you?
Click to expand...

humbug said:
Massive amount of OSD info, difficult to see FPS that gain the GPU is running at 95 to 97%.
Click to expand...

LOL,I guess not one person even looked at the videos. I am OK with that.Too funny.
 
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