john-users - INTELs new CPUs and SSE4

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Date: Thu, 9 Mar 2006 11:33:34 +0100 (CET)
From: rembrandt@...erlin.de
To: john-users@...ts.openwall.com
Subject: INTELs new CPUs and SSE4

Hello everybody,

As far as I understood Solar the AltiVec-Engine of the PowerPPC-CPUs has
the advantage that it base on a 128Bit Bus.
SSE (1-3) is 128Bit too but it gets splitted into 2 Blocks a 64Bit.

During the Intel Developer Forum (IDF) INTEL presented the
"Core"-Microarchitecture (but they didn`t said much about it).
A change wich is maybe interesting is that the new INTEL-CPUs will get
SSE4 wich base on a 128Bit Bus. So it dosn`t split the data anymore.

Because of this change using SSE on x86/x64 is maybe a speedup.
Even SSE 1-3 are maybe useless SSE4 sounds like it would operate like the
AltiVec-Engines on PowerPPC-CPUs.
So maybe it could provide similiar results.

Kind regards,
Rembrandt