Pushing For Speed
With testing out of the way, I endeavored to see if these sticks have any headroom. For Intel, I kept the same procedure I have been using, leaving all settings at their XMP defaults and then increasing the frequency until the system loses stability.
I was able to get 4266 MHz out of this kit with all other XMP settings at their default. A fair bit of headroom considering the XMP timings.
For AMD overclocking, I wanted to dig a little deeper. First, I followed the same procedure as with Intel to find the maximum-possible frequency with XMP timings. Next, I set the frequency to 3600 MHz and used DRAM Calculator for Ryzen to optimize the timings. If the "fast" preset was not viable, start with the "safe" settings and try to at least get the primary timings as close to the "fast" preset as possible. I then benched each setting with AIDA64 to showcase what kind of benefits you can expect from each. I also included the default (non-XMP) settings as a base reference point.
I was able to squeeze 4533 MHz out of the Team Group T-Force Dark Z FPS on my MEG X570 ACE with the XMP default timings. For timings, the "fast" preset proved perfectly stable.
Looking at the graphs, there is some benefit to the tighter timing profile.