Help explain a bit about RAM

[Biggilus]

So I'm building a new rig, 7800x3d on an amd board and apart from reading "6000mhz at CL30 is the sweet spot' for that CPU, what do all the other numbers mean? CL and the other double digits.
And what's the main bit to look for? Only ever used to overclock a little but really want to go to town with tinkering with everything I can on this new system.

 

[mickyflinn]

This is a good explanation.

What are memory timings

If we think of memory as a race car, the module speed (MH/z) would be like the raw horse power of the engine, and the timings would be the driver of the car.

uk.crucial.com

 

[Tetras]

So I'm building a new rig, 7800x3d on an amd board and apart from reading "6000mhz at CL30 is the sweet spot' for that CPU, what do all the other numbers mean? CL and the other double digits.

For more detailed information than you'll ever want, I suggest buildzoid's channel:

https://www.youtube.com/@ActuallyHardcoreOverclocking

And videos like this:

RANT: THE CAS LATENCY TIMING DOESN'T MATTER AS MUCH AS YOU THINK IT DOES

DDR4 PyPrime 2B record: https://hwbot.org/submission/4758130_raufDDR5 PyPrime 2B record: https://hwbot.org/submission/4987588_p5ych0My Patreon: https://www.p...

www.youtube.com

And what's the main bit to look for? Only ever used to overclock a little but really want to go to town with tinkering with everything I can on this new system.

For the X3D? From Hardware Unboxed's results I'd say anything 5600 C36 and up is fine, they just don't seem to care much about memory speed, compared to the non-X3D CPUs.

 

[Biggilus]

This is a good explanation.

What are memory timings

If we think of memory as a race car, the module speed (MH/z) would be like the raw horse power of the engine, and the timings would be the driver of the car.

uk.crucial.com

Perfect just what I was looking for thanks, understanding what each bit means. Now I can look into why and how to adjust, if necessary

 

[Biggilus]

For more detailed information than you'll ever want, I suggest buildzoid's channel:

https://www.youtube.com/@ActuallyHardcoreOverclocking

And videos like this:

RANT: THE CAS LATENCY TIMING DOESN'T MATTER AS MUCH AS YOU THINK IT DOES

DDR4 PyPrime 2B record: https://hwbot.org/submission/4758130_raufDDR5 PyPrime 2B record: https://hwbot.org/submission/4987588_p5ych0My Patreon: https://www.p...

www.youtube.com

For the X3D? From Hardware Unboxed's results I'd say anything 5600 C36 and up is fine, they just don't seem to care much about memory speed, compared to the non-X3D CPUs.

Thanks I'll take a look when I'm not sleepy on my commute. So the 7800x3d is more user/noob friendly regarding memory timings?

 

[Tetras]

So the 7800x3d is more user/noob friendly regarding memory timings?

I don't know if they overclock easier, I'm referring to their performance. I think the 5800X3D was the same way, probably because their massive cache lessens the need for fast ram access.

 

[Biggilus]

That actually made sense to me! Good to know these things ty