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SSE4 (Streaming SIMD Extensions 4) is a SIMD CPU instruction set used in the Intel Core microarchitecture and AMD K10 (K8L).It was announced on September 27, 2006, at the Fall 2006 Intel Developer Forum, with vague details in a white paper; [1] more precise details of 47 instructions became available at the Spring 2007 Intel Developer Forum in Beijing, in the presentation. [2]
Added important powerful new instructions, SSE4.2. Westmere: 32 nm shrink of the Nehalem microarchitecture with several new features. Sandy Bridge 32 nm microarchitecture, released January 9, 2011. Formerly called Gesher but renamed in 2007. [2] First x86 to introduce 256 bit AVX instruction set and implementation of YMM registers.
First VIA processor with x86-64 instruction set; Series Model Core ... MMX SSE SSE2 SSE3 SSSE3 SSE4.1 SSE4.2 AES AVX AVX2 FMA3 SHA AVX512 AVX512F AVX512CD AVX512BW ...
The first CPU to support SSE, the Pentium III, shared execution resources between SSE and the floating-point unit (FPU). [2] While a compiled application can interleave FPU and SSE instructions side-by-side, the Pentium III will not issue an FPU and an SSE instruction in the same clock cycle.
Advanced Vector Extensions 2 (AVX2), also known as Haswell New Instructions, [24] is an expansion of the AVX instruction set introduced in Intel's Haswell microarchitecture. AVX2 makes the following additions: expansion of most vector integer SSE and AVX instructions to 256 bits
Nehalem processors incorporate SSE4.2 SIMD instructions, adding seven new instructions to the SSE 4.1 set in the Core 2 series. The Nehalem architecture reduces atomic operation latency by 50% in an attempt to eliminate overhead on atomic operations such as the LOCK CMPXCHG compare-and-swap instruction. [15]
All models support: MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, Enhanced Intel SpeedStep Technology (EIST), Intel 64, XD bit (an NX bit implementation), Intel SGX, Intel VT-x, Intel VT-d, AES-NI. GPU and memory controller are integrated onto the processor die
The x86 instruction set refers to the set of instructions that x86-compatible microprocessors support. The instructions are usually part of an executable program, often stored as a computer file and executed on the processor. The x86 instruction set has been extended several times, introducing wider registers and datatypes as well as new ...