Intel's hexa-core Nehalem Gulftown with DDR3-1066 only?
Intel's upcoming high-end CPU, the hexa-core Gulftown, reportedly has to be content with DDR3 1066 support like the Core i7. In contrast the Core i5 (Lynnfield) will have DDR3-1333 due to different memory controllers.
The new Core i5 on Lynnfield basis is said to get official DDR3-1333 support. The big brother, Intel's Core i7 with Bloomfield core, only has DDR3-1066 support. Certainly this fact does not prevent those CPUs from higher clock rates - however, in case overclocking is not possible Intel does not have to grant substitution.
Now fudzilla.com revealed information that Intel's new high-end hexa-core CPU Gulftown, which is scheduled for early 2010 and produced in 32 nm, will only get DDR3-1066 support again.
The memory controller of current Intel CPUs is build directly in the processor core and this could be the reason for Intel's classification. Lynnfield (Core i5), which is the only Nehalem with Dual Channel controller, is specified for DDR3-1333, Bloomfield (Core i7) has a Triple Channel controller and officially supports DDR3-1066 RAM only. Gulftown which is based on the 32 nm Westmere will have a Triple Channel controller as well.
More interesting articles about Core i5:
• Intel: Core i5 with up to 3.6 GHz in Turbo Mode at 95 watt TDP
• Intel: Socket 1366 will live for a long time
CPU-Roadmap 2017 - 2018: Künftige AMD- und Intel-CPUs/-APUs in der Übersicht [April 2017]