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Haswell Microarchitecture on 22nm process
The new Microarchitecture (code name Haswell) has a fully integrated voltage regulator (FIVR) for simplified motherboard design. It delivers improved CPU performance and enhanced overclocking over its previous generation Microarchitecture.
New 4th generation Intel Core processor family instructions
Haswell core-based processors come with Intel Advanced Vector Extensions 2 (Intel AVX2). Intel AVX2 expands integer data to 256-bit SIMD to increase the performance of integer operations. It also offers new capabilities such as Gather and FMA (Fused Multiply-Add). Additional new instructions accelerate key algorithms, including parallel extract/deposit, bit manipulation operations and new rotates/multiplies/shift. The AES-NI performance is also improved.
Intel processor graphics with Dx11.1 & OpenCL 1.2
Haswell core-based processors offer improved integrated graphics. The integrated graphics supports DirectX 11.1 for optimized graphics performance and OpenGL 3.2 and OpenCL 1.2 for enhanced general-purpose computing in GPGPU-supported applications. It also features digital display repartition, where digital display ports are wired directly to the CPU, and analog displays are handled by a Random Access Memory Digital-to-Analog Converter (RAMDAC) located in the Platform Controller Hub (PCH). It supports up to three independent displays: HDMI, DVI, Display Port, VGA (via Lynx Point).
Haswell power-management innovation
Haswell core-based processors offer advanced power management. It has 20x + improvement from prior generations and is automatic, continuous, fine-grained, and transparent to well-written SW.
Intel Turbo Boost Technology 2.0
More intelligent, energy-efficient, and dynamic than previous generations, Intel Turbo Boost Technology 2.0 gives you accelerating performance when you need it. It delivers an even greater automatic speed increase by allowing processor cores to run faster than the base operating frequency for demanding applications, if the processor is operating below power, current, and temperature specification limits.