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AMD K8 E4 Stepping: SSE3 Performance @ Anandtech

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19-02-2005, 02:57 PM

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AMD K8 E4 Stepping: SSE3 Performance @ Anandtech

New AMD Opterons surfaced this week, and with them came a new stepping that adds SSE3 support. Anandtech have a look at the performance obtained from this new stepping.

It will likely be the case that current SSE3 optimized code paths will also not show their strengths on Opteron/Athlon until the processors are in developers' hands for a while. The Intel compiler is also hands and feet above any resource AMD have up their sleeve. But since SSE3 offers more choices for optimization and code simplification, compilers may have an easier time generating efficient code. Hand optimized code is still important for tight loops in critical sections of performance oriented code. In this case, more powerful and simple options implemented in hardware will help programmers better optimize their own code.

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