And to anyone who knows the Pentium M architecture... I am wondering why the CPU supports SSE2, and yet when it's used, it slows Prime95 down. Is SSE2 in fact slower than SSE?
It is a common misconception that SSE2 is faster than x87 floating point.
On a Pentium 4, SSE2 floating point has double the maximum throughput of x87 floating point. On Athlons and Pentium M the two have the same maximum throughput.
Prime95 assumes 128 byte cache line prefetches when using SSE2. Not good for the
Pentium M.
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