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On the graphics side, Ivy Bridge continues the integrated HD Graphics lineup with the Intel HD 4000. According to Intel’s own press release, the Tri-gate transistors can increase performance by up to 37 percent compared to a similarly-clocked 32 nm Sandy Bridge-based CPU while requiring less than 50 percent of the power.
This technology increases the surface area of the CPU in key channels by three times, thus providing a greater flow of electrons without necessarily increasing the planar die size. The Ivy Bridge architecture includes a number of new features never before implemented in a mass-produced Intel CPU, most notably the Tri-gate “3-D” transistor. Naming and model convention follow that of the Sandy Bridge generation, but with the “3” prefix to denote the third generation of Core ix processors (i.e., Core ix-3xxx). The 22 nm family was announced in 2011, though mobile-class processors did not launch until mid-2012.
Ivy Bridge builds upon the Sandy Bridge architecture and is considered the “tick” to Intel’s development model. Intel has also added a new class of 28 Watt CPUs designed for larger Ultrabooks.Īdditional benchmarks, specifications and in-depth performance comparisons of Haswell CPUs and the integrated HD graphics can be seen in the links below: In contrast, the TDP of ULV models have decreased by 2 Watts and is now only 15 Watts including the chipset.
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The fastest integrated graphics model, the Iris Pro Graphics 5200, features an additional 128 MB eDRAM of fast dedicated memory that can be shared between the CPU and GPU.īecause the voltage converter has been integrated into the CPU, the TDP of standard dual- and quad-core models have increased by 2 Watts to 37, 47, or 57 Watts depending on the class of the model. Depending on the model and class, the GPU in Haswell processors can include 10, 20, or 40 EUs compared to just 6 or or 16 EUs on Ivy Bridge chipsets. The integrated graphics has been especially modified. Besides smaller improvements like revamped jump prediction and faster caches, Intel has also increased the number of execution units (EU) and implemented several new instruction set extensions and features including AVX2, FMA3, and TSX support. Similar to its Ivy Bridge predecessors, the CPUs are manufactured in 22 nm with Tri-gate transistors.Īlthough the microarchitecture of Haswell is based on Ivy Bridge, there are a number of important changes for a roughly 10 percent boost in performance per MHz. Intel launched its fourth generation of its Core product line with the codename Haswell in June 2013.