Thus, SSE3 instructions set introduced in Venice includes 11 new instructions:

ADDPS, HSUBPS, HADDPD, HSUBPD – horizontal operations with SSE2 registers, which have been left out during SSE2 set development for some reason. These instructions can be extremely helpful for 3D graphics processing, as they simplify significantly the calculation of scalar vector product.

ADDSUBPS, ADDSUBPD, MOVSHDUP, MOVSLDUP, MOVDDUP – instructions for work with complex numbers. These commands can be very helpful for calculation of wave processes and sound processing, i.e. in all tasks using fast discrete Fourier transforms.

FISTTP – this is a new arithmetic co-processor instruction transforming the co-processor stack into the integer type. For some unknown reason this instruction used to be absent in the x87 instructions set.
LDDQU – this instruction loads 128-bit unaligned data. It can be very helpful for faster video compression.

quote:

---

Originally posted by maraio:
E i software audio lo sanno che ci sono queste istruzioni?

---

Le SSE3 sono presenti sulle cpu Intel già da tempo.
Per questo motivo in certi casi i P4 sembrano misteriosamente più performanti.

Molti dei plugin e dei software audio fanno uso delle SSE3.
Non so di preciso quali plugin, ma quasi tutti i più recenti le supportano.

quote:

---

Originally posted by Zelazowa-wola:
Ripropongo la domanda di maraio:
"I software audio lo sanno che ci sono queste istruzioni?".
Ciao!

Zelazowa-wola

---

Dipende dai programmatori!

Putroppo non si riescono a trovare sufficienti informazioni per sapere quali software le utilizzano.