Question what is the best memory speed for this system

[etrin]

Gigabyte aros master x570s and amd 5800x
I see 3600 and 4400 listed everywhere on amd systems.
I don't know which is the best speed for oc

 

[kschendel]

Stick to 3600 unless you want to spend a lot of time fiddling. Somewhere between 3800 and 4000+, most Zen 3 CPU samples will drop the internal fabric clock in half (because it can't run higher) and that actually hurts performance. The gain by going over 3600 is minimal in most cases. Feel free to buy 3800 MT/s memory if you don't mind spending the extra for almost no gain.

 

[etrin]

thanks for replying. I heard about the fabric problems before, didn't know if the newer S models had the same thing.

will this be good enough
G skill ripjaws v 2 x 16 gb

• DDR4 3600 (PC4 28800)
• Timing 14-15-15-35
• CAS Latency 14
• Voltage 1.45V

 

[kschendel]

thanks for replying. I heard about the fabric problems before, didn't know if the newer S models had the same thing.

S or non S chipset has basically nothing to do with memory speed capability. It's all about the CPU and its internal memory controller (and the RAM sticks), not the mobo. A bad mobo with poor traces or layout can get in the way and make things worse, but a good mobo can't make the memory go faster than the CPU is willing to go. The memory controller parts are in the CPU package, not the motherboard.

will this be good enough
G skill ripjaws v 2 x 16 gb

• DDR4 3600 (PC4 28800)
• Timing 14-15-15-35
• CAS Latency 14
• Voltage 1.45V

Sure, even 3600CL16 would be good, probably allow for a little tweaking, and would probably be a good bit cheaper.