[SOLVED] Underperforming, and unstable RAM frequency ?

Nov 17, 2022
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Hi,

My PC is over 2+ years old, I had set it up properly but left it running without caring too much for a while. The other day I ran a userbenchmark and noticed that my RAM was way underperforming (bottom 2%), which led me to turn back on the XMP profile (not sure why/when this got disabled to start with but that doesn't matter).

The result is still not great on the GPU and RAM, but I want to focus on RAM here. (https://www.userbenchmark.com/UserRun/56658961 )

Some facts:
  • XMP profile is set with 3600MHz
  • CPU-Z shows Max Bandwith 1801MHz for each slot in SPD
  • Task Manager shows 3600MHz
  • RAM sticks are G.SKILL Neo which should be optimized for my AMD CPU
The issue comes with the Memory tab on CPU-Z, the DRAM Frequency here is unstable, changes from 1775 to 1785 roughly constantly

Questions:
  • Is this normal?
  • Does that impact the underperformances of my RAM in this benchmark?
  • Pivot question: Can this impact the GPU performances? See another 2years old benchmark when I had just received the GPU alone (https://www.userbenchmark.com/UserRun/23729541), it was extremely over performing.
Thanks
 
Solution
Hi,

My PC is over 2+ years old, I had set it up properly but left it running without caring too much for a while. The other day I ran a userbenchmark and noticed that my RAM was way underperforming (bottom 2%), which led me to turn back on the XMP profile (not sure why/when this got disabled to start with but that doesn't matter).

The result is still not great on the GPU and RAM, but I want to focus on RAM here. (https://www.userbenchmark.com/UserRun/56658961 )

Some facts:
  • XMP profile is set with 3600MHz
  • CPU-Z shows Max Bandwith 1801MHz for each slot in SPD
  • Task Manager shows 3600MHz
  • RAM sticks are G.SKILL Neo which should be optimized for my AMD CPU
The issue comes with the Memory tab on CPU-Z, the...
Hi,

My PC is over 2+ years old, I had set it up properly but left it running without caring too much for a while. The other day I ran a userbenchmark and noticed that my RAM was way underperforming (bottom 2%), which led me to turn back on the XMP profile (not sure why/when this got disabled to start with but that doesn't matter).

The result is still not great on the GPU and RAM, but I want to focus on RAM here. (https://www.userbenchmark.com/UserRun/56658961 )

Some facts:
  • XMP profile is set with 3600MHz
  • CPU-Z shows Max Bandwith 1801MHz for each slot in SPD
  • Task Manager shows 3600MHz
  • RAM sticks are G.SKILL Neo which should be optimized for my AMD CPU
The issue comes with the Memory tab on CPU-Z, the DRAM Frequency here is unstable, changes from 1775 to 1785 roughly constantly

Questions:
  • Is this normal?
  • Does that impact the underperformances of my RAM in this benchmark?
  • Pivot question: Can this impact the GPU performances? See another 2years old benchmark when I had just received the GPU alone (https://www.userbenchmark.com/UserRun/23729541), it was extremely over performing.
Thanks
Yes, some small frequency oscillations are normal as IMC also changes wit CPU frequency, That little is unlikely to have an impact on GPU and anything else. GPU has own VRAM anyway.
Withot XMP enabled RAM was most probably running at base frequency (2133 - 2400MHz) so improvement to 3600MHz would be more visible.
 
Solution
Nov 17, 2022
6
0
10
Yes, some small frequency oscillations are normal as IMC also changes wit CPU frequency, That little is unlikely to have an impact on GPU and anything else. GPU has own VRAM anyway.
Withot XMP enabled RAM was most probably running at base frequency (2133 - 2400MHz) so improvement to 3600MHz would be more visible.

Thanks for your reply. Indeed, the base frequency was at 2133MHz before I swapped the profile.

Do you think my RAM currently being in the bottom 24% is just due to hardware lottery and that I should leave it at that? I can believe that some people have tweaked their memory profile to something more optimised than the default XMP profile, but I doubt that it would be most people!
 
Thanks for your reply. Indeed, the base frequency was at 2133MHz before I swapped the profile.

Do you think my RAM currently being in the bottom 24% is just due to hardware lottery and that I should leave it at that? I can believe that some people have tweaked their memory profile to something more optimised than the default XMP profile, but I doubt that it would be most people!
That's not a very best place to compare systems because it's not transparent what they are comparing to. For all we know they may be comparing it to some 4666 MHz ram.
You might want to check with Aida program, at least they show what it's compared to.
 
Hi,

My PC is over 2+ years old, I had set it up properly but left it running without caring too much for a while. The other day I ran a userbenchmark and noticed that my RAM was way underperforming (bottom 2%), which led me to turn back on the XMP profile (not sure why/when this got disabled to start with but that doesn't matter).

The result is still not great on the GPU and RAM, but I want to focus on RAM here. (https://www.userbenchmark.com/UserRun/56658961 )

Some facts:
  • XMP profile is set with 3600MHz
  • CPU-Z shows Max Bandwith 1801MHz for each slot in SPD
  • Task Manager shows 3600MHz
  • RAM sticks are G.SKILL Neo which should be optimized for my AMD CPU
The issue comes with the Memory tab on CPU-Z, the DRAM Frequency here is unstable, changes from 1775 to 1785 roughly constantly

Questions:
  • Is this normal?
  • Does that impact the underperformances of my RAM in this benchmark?
  • Pivot question: Can this impact the GPU performances? See another 2years old benchmark when I had just received the GPU alone (https://www.userbenchmark.com/UserRun/23729541), it was extremely over performing.
Thanks
Just to pick around the edges a little.

Your ssd's are too full do a little house cleaning on both.

Run ubm like this.
Reboot.
Wait a few mins.
Run ubm with the browser closed.
Post a link to the results.
 
Nov 17, 2022
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10
I've always ran my ubm after a reboot, a wait for everything to start, and no other program opened.
You want to compare it with a ubm result where I have some program running ?
 
Nov 17, 2022
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That's not what ubm shows the uptime says you have been up for hours.

Ha that is correct, I must have closed my work session and just swapped to my personal session. Regardless it was a fresh session after I had killed some services such as SQL Server.
Weirdly I have now tried a proper shut down and booted, ran the bench again and GPU back to lower 20%, OC still is on though. Not sure why but I will try a bit more later before posting the results