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Discussion on Article:
First Look at Nehalem Microarchitecture

Started by: Bingle | Date 11/03/08 05:35:56 AM
Comments: 2 | Last Comment:  11/03/08 09:01:01 AM

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1. 
You wrote:
First, L3 cache of the upcoming Intel processors works at full CPU frequency, which means that it will work faster if the CPU clock speed increases.


Anandtech writes:
The CPU operates on a multiplier of the QPI source clock, which in this case is 133MHz. The top bin Nehalem runs at 3.2GHz or 133MHz x 24. The L3 cache and memory controller operate on a separate clock frequency called the un-core clock. This frequency is currently 20x the BCLK, or 2.66GHz.

http://www.anandtech.com/...owdoc.aspx?i=3448&p=2
Which one is correct ?

cheers

Bingle
0 0 [Posted by: Bingle  | Date: 11/03/08 05:35:56 AM]
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Yes, it is our mistake. L3 cache in Nehalem processors works at its own frequency that is a little lower than the CPU core frequency.
0 0 [Posted by: Gavric  | Date: 11/03/08 09:01:01 AM]
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