7800X3D with 6400 memory

[sgoaty]

I did try a search but nothing came up ( not sure if it's broken?)

I'm messing around with a 7800X3D system and noticed the ram is set to 6400 CL in 1:1 mode perfectly stable without any messing.

Does that mean this CPU has a particularly good memory controller or is it pretty common for them to work above 6000?
Thanks
Scott

 

[iamgigglz]

Yeah that's good going without any tweaks - not incredibly so but it's about the upper limit of what I would expect to see.

 

[ED209]

I did try a search but nothing came up ( not sure if it's broken?)

I'm messing around with a 7800X3D system and noticed the ram is set to 6400 CL in 1:1 mode perfectly stable without any messing.

Does that mean this CPU has a particularly good memory controller or is it pretty common for them to work above 6000?
Thanks
Scott

What ram did you get? it maybe rated for EXPO of 6400mhz (If enabled etc)

 

[dave28]

Probably also depends on the mobo quality and other timings, RAM quality etc.

The 7800x3d is known for being fussy at 6400.

 

[iamgigglz]

My 7700X wasn't happy with my 6400MT/s memory until a recent BIOS update on my X670 board. I daren't upgrade to 4 sticks now (even if I could afford it).

 

[jigger]

The latest AGESA updates seem to have helped.

 

[Blackwhite]

The performance gain from faster RAM is marginal with X3D processors.

 

[iamgigglz]

The performance gain from faster RAM is marginal with X3D processors.

I've seen this said a million times, but surely it only holds true until the cache runs out? Yes, 96MB in the 7800X3D is huge when compared to the 32MB in a 7700X for example, but it's still only 96MB.
That, and ram isn't only for the CPU's use. Without direct storage or GPU decompression your GPU performance will be affected by ram speed too.

 

[ntemples1]

The cache point is the interesting part. Faster memory may not transform an X3D chip in games, but the wider system still has to feed the GPU and other workloads, so ‘marginal’ depends a lot on what is being measured.

 

[iamgigglz]

The cache point is the interesting part. Faster memory may not transform an X3D chip in games, but the wider system still has to feed the GPU and other workloads, so ‘marginal’ depends a lot on what is being measured.

You said that far better than I did