Specs of High-End Intel Core i 4000 “Haswell” Microprocessors for Desktops Get Published

Intel Will Roll-Out Haswell Chips for Desktops in Two Phases, Starting from April

by Anton Shilov
12/11/2012 | 10:55 PM

Intel Corp. will roll-out its next-generation code-named Haswell processors for desktops in two phases, according to a media report. The first phase will take place in early second quarter, presumably in April, whereas the second phase will take place sometimes in Q3 2013. Initially, the world’s largest chipmaker will reveal high-end microprocessors that belong to Haswell family.


According to preliminary specifications of the first breed of Core i-series 4000-family “Haswell” central processing units for desktops published by VR-Zone web-site, the high-end lineup consisting of Core i7 and Core i5 products will be pretty broad and will include more models than there are today. In a bid to make the new cips more competitive, Intel will not only equip all i7 and i5 chips with top-of-the-range integrated graphics core, but will also improve turbo clock-speeds on some models.

Considering positioning of the first-phase Haswell processors, only one energy-efficient model for desktops will be revealed in April.

Given the fact that Intel decided not to boost clock-speed of Intel Core i7 “Haswell” chips significantly compared to currently available Core i7 “Ivy Bridge” products, which confirms that the forthcoming micro-architecture will enable higher performance compared to existing one on the same frequencies.

Intel managed to reduce the platform idle power of Intel Core processor family based on the next-generation "Haswell" micro-architecture by more than 20 times over the Core i-series "Sandy Bridge" chips while delivering high performance and responsiveness. Mr. Perlmutter also said Intel will add a new line of even lower-power processors based on the same micro-architecture to its roadmap starting in 2013. To spur even more innovation in mobile computing, Intel plans to offer Haswell-based products with power consumption as low as 10W to enable thinner, lighter ultrabooks, convertible and tablet designs with better performance and battery life.

Intel Haswell microprocessors for mainstream desktops and laptops will be structurally similar to existing Core i-series "Sandy Bridge" and "Ivy Bridge" chips and will continue to have two or four cores with Hyper-Threading technology along with graphics adapter that shares last level cache (LLC) with processing cores and works with memory controller via system agent. The processors that belong to the Haswell generation will continue to rely on dual-channel DDR3/DDR3L memory controller with DDR power gating support to trim idle power consumption. The chip will have three PCI Express 3.0 controllers, Intel Turbo Boost technology with further improvements and so on.

On the micro-architectural level the Haswell chip is almost completely different compared to available solutions. To improve parallelism and performance of Haswell, Intel incorporated a new branch prediction mechanism, increased buffer sizes, added FMA execution units, improved load/store bandwidth and redesigned many other things. Besides, Haswell supports numerous new instructions, including AVX2, bit manipulation instructions, FPMA (floating point multiple accumulate) and others. Additionally, Haswell incorporates new instructions for faster encryption and new hardware-based security features.

The new graphics core based on Denlow architecture is projected to support such new features as DirectX 11.1, OpenGL 3.2+, to be substantially more powerful and to be certified to run numerous professional applications.

Intel Haswell chips also implement a number of aggressive measures to trim power consumption, including power aware interrupt routing for power/performance optimizations, configurable TDP and LPM, DDR power gating, power optimizer (CPPM) support, idle power improvements, new power states, etc.

Intel did not comment on the news-story.