No silicon yet?

By: none (none.delete@this.none.com), September 21, 2009 11:54 pm
Room: Moderated Discussions
anon (anon@anons.com) on 9/21/09 wrote:
---------------------------
[...]
>Do you think the performance number listed here is credible?
>http://perspectives.mvdirona.com/2009/09/16/ARMCortexA9SMPDesignAnnounced.aspx

The published number for 4 x A9 @1MHz is 11.522.
Given that with 32 KB of Dcache most of CoreMark should fit
in L1, and given that there's no data sharing that'd give a
CoreMark of 5761 for one A9 @2GHz. So if you take two of them
you reach ~11500, which looks close to what is on that page.

The number for Atom seems slightly below what is quoted on
CoreMark result page. Also keep in mind that with HT you get
less of a speedup than with two "real" cores.

So the CoreMark performance number on the above page looks
credible to me.

Ref: http://www.coremark.org/benchmark/index.php
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