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01-10-2011, 10:00 AM
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Cheetah
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Join Date: Mar 2009
Posts: 1
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SSE3 ≠ SSSE3
Quote:
SSE3, also called Prescott New Instructions (PNI), is an incremental upgrade to SSE2, adding a handful of DSP-oriented mathematics instructions and some process (thread) management instructions.
SSSE3 is an incremental upgrade to SSE3, adding 16 new opcodes which include permuting the bytes in a word, multiplying 16-bit fixed-point numbers with correct rounding, and within-word accumulate instructions. SSSE3 is often mistaken for SSE4 as this term was used during the development of the Core microarchitecture.
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Bulldozer and Bobcat are the first AMD processors to support SSSE3 instructions:
http://en.wikipedia.org/wiki/Bobcat_%28processor%29
http://en.wikipedia.org/wiki/SSSE3
Last edited by pech; 01-10-2011 at 10:05 AM.
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