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Intel improves Arrow Lake-S's fabric clock by 50% via "200S Boost" update

Xebec

Well-known member
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:

1745329755071.png


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:

**AIDA64 Latency results:

Further detail on Arrow Lake's fabric (with measurements prior to this update):
 
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