Intel has announced significantly higher fabric (and memory) clocks as "supported under warranty" for Arrow Lake-S. Intel apparently had extremely conservative margins on the inter-tile/chiplet fabric speed and has now updated supported frequency accordingly:
Another site shows overall main memory latency (AIDA64) improving substantially from 94.1 ns to 74.0 ns**. Sites are also reporting that this is still considered "overclocking, but covered under warranty". This feature is enabled via BIOS updates from board vendors.
For comparison, AMD's AM5/Zen 5 platform officially supports DDR5-5600, with Infinity Fabric (FCLK) typically clocking at 2.0 GHz with slightly faster 6000 ram. AM5 Infinity Fabric typically generally becomes unstable at 2.2 GHz and above.
200S Boost overview:
www.tomshardware.com
**AIDA64 Latency results:
Further detail on Arrow Lake's fabric (with measurements prior to this update):
chipsandcheese.com
Another site shows overall main memory latency (AIDA64) improving substantially from 94.1 ns to 74.0 ns**. Sites are also reporting that this is still considered "overclocking, but covered under warranty". This feature is enabled via BIOS updates from board vendors.
For comparison, AMD's AM5/Zen 5 platform officially supports DDR5-5600, with Infinity Fabric (FCLK) typically clocking at 2.0 GHz with slightly faster 6000 ram. AM5 Infinity Fabric typically generally becomes unstable at 2.2 GHz and above.
200S Boost overview:

We tested Intel's new '200S Boost' feature: 7% higher gaming performance thanks to memory overclocking, now covered by the warranty
Memory and fabric overclocking now covered by the warranty wrapper.
**AIDA64 Latency results:
Further detail on Arrow Lake's fabric (with measurements prior to this update):

Examining Intel's Arrow Lake, at the System Level
Arrow Lake is the codename for Intel's newest generation of high performance desktop CPUs.
