The EASIEST Way to Overclock Intel Core i7-5820K
9PC Specs:
Intel Core i7-5820k 4.0 GHz
ASUS GTX 970 1480 MHz
ASRock Fatal1ty X99M Killer
Crucial 16GB DDR4 2133 MHz
AeroCool 650W Power Supply
Windows 10 Pro x64
Haswell is the codename for a processor microarchitecture developed by Intel as the "fourth-generation core" successor to the Ivy Bridge microarchitecture. Intel officially announced CPUs based on this microarchitecture on June 4, 2013 at Computex Taipei 2013, while a working Haswell chip was demonstrated at the 2011 Intel Developer Forum. With Haswell, which uses a 22 nm process, Intel also introduced low-power processors designed for convertible or "hybrid" ultrabooks, designated by the "Y" suffix.
Haswell CPUs are used in conjunction with the Intel 8 Series chipsets, Intel 9 Series chipsets, and Intel C220 series chipsets.
The Haswell architecture is specifically designed to optimize the power savings and performance benefits from the move to FinFET (non-planar, "3D") transistors on the improved 22 nm process node.
Haswell has been launched in three major forms:
Desktop version (LGA 1150 socket and the new LGA 2011-v3 socket): Haswell-DT
Mobile/Laptop version (PGA socket): Haswell-MB
BGA version:
47 W and 57 W TDP classes: Haswell-H (for "All-in-one" systems, Mini-ITX form factor motherboards, and other small footprint formats)
13.5 W and 15 W TDP classes (MCP): Haswell-ULT (for Intel's UltraBook platform)
10 W TDP class (SoC): Haswell-ULX (for tablets and certain UltraBook-class implementations)
Notes
ULT = Ultra Low TDP; ULX = Ultra Low eXtreme TDP
Only certain quad-core variants and BGA R-series stock keeping units (SKUs) receive GT3e (Intel Iris Pro 5200) integrated graphics. All other models have GT3 (Intel HD 5000 or Intel Iris 5100), GT2 (Intel HD 4200, 4400, 4600, P4600 or P4700) or GT1 (Intel HD Graphics) integrated graphics. See also Intel HD and Iris Graphics for more details.
Due to the low power requirements of tablet and UltraBook platforms, Haswell-ULT and Haswell-ULX are only available in dual-core configurations. All other versions come as dual- or quad-core variants.
Performance
Compared to Ivy Bridge:
Approximately 8% faster vector processing
Up to 5% faster single-threaded performance
6% faster multi-threaded performance
Desktop variants of Haswell draw between 8% and 23% more power under load than Ivy Bridge.
A 6% increase in sequential CPU performance (eight execution ports per core versus six)
Up to 20% performance increase over the integrated HD4000 GPU (Haswell HD4600 vs Ivy Bridge's built-in Intel HD4000)
Total performance improvement on average is about 3%
Around 15 °C hotter than Ivy Bridge, while clock frequencies of over 4.6 GHz are achievable