SSE4 instruction set extension consists of 54 instructions that improve performance of media data manipulation and text processing. The first 47 instructions from the SSE4, called SSE4.1, were introduced in Intel Penryn core on January 7th, 2008. Support for remaining 7 instructions, or SSE4.2, was included into Nehalem core.

Support for SSE4 instructions was added in to all AMD microprocessors based on Bulldozer micro-architecture. AMD Bobcat, K10 and earlier CPUs do not support this extension.

Last modified: 15 Oct 2013
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