# Haswell

> Intel processor microarchitecture

**Wikidata**: [Q59069](https://www.wikidata.org/wiki/Q59069)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Haswell_(microarchitecture))  
**Source**: https://4ort.xyz/entity/haswell

## Summary  
Haswell is Intel’s 22 nm processor microarchitecture introduced in 2013. It succeeds the Sandy Bridge and Ivy Bridge architectures and is followed by Broadwell and Skylake, powering CPUs such as the Core i7‑4770HQ and Haswell‑based Xeon processors.

## Key Facts  
- **Release year:** 2013 【publication_date】  
- **Developer:** Intel 【developer】  
- **Fabrication method:** 22 nm lithography process 【fabrication_method】  
- **Predecessors:** Sandy Bridge and Ivy Bridge 【follows】  
- **Successors:** Broadwell and Skylake 【followed_by】  
- **Classification:** Microarchitecture; subclass of Intel microprocessor 【instance_of】【subclass_of】  
- **Common aliases:** HSW, Haswell, Intel Haswell, 해스웰 마이크로아키텍처 【aliases】  
- **Key products:** Intel Core i7‑4770HQ, Haswell Xeon 【Intel Core i7-4770HQ】【Haswell Xeon】  
- **Image reference:** ![Haswell chip](https://commons.wikimedia.org/wiki/Special:FilePath/Haswell_Chip.jpg) 【image】  
- **Wikipedia title:** “Haswell (microarchitecture)” 【wikipedia_title】

## FAQs  
### Q: What is the Haswell microarchitecture?  
A: Haswell is Intel’s 22 nm processor microarchitecture released in 2013, succeeding Sandy Bridge and Ivy Bridge and powering a range of CPUs and Xeon servers.  

### Q: When was Haswell introduced and what process technology does it use?  
A: Haswell was introduced in 2013 and is built using a 22 nm lithography manufacturing process.  

### Q: Which architectures came before and after Haswell?  
A: Haswell follows the Sandy Bridge and Ivy Bridge architectures and is succeeded by Broadwell and Skylake.  

### Q: Which Intel products are based on Haswell?  
A: Notable Haswell‑based products include the Core i7‑4770HQ mobile processor and Haswell‑family Xeon server CPUs.  

### Q: Who developed Haswell and how is it classified?  
A: Intel developed Haswell; it is classified as a microarchitecture and is a subclass of Intel microprocessors.  

## Why It Matters  
Haswell represents a pivotal step in Intel’s roadmap, marking the transition to a finer 22 nm manufacturing node that enabled higher transistor density and improved power‑efficiency compared with its predecessors. By building on the architectural lessons of Sandy Bridge and Ivy Bridge, Haswell delivered a platform for a broad spectrum of devices—from high‑performance laptops (e.g., Core i7‑4770HQ) to enterprise servers (Haswell Xeon). Its introduction set the stage for subsequent architectures—Broadwell and Skylake—while establishing design patterns that continue to influence modern Intel CPUs. For developers, system builders, and end‑users, understanding Haswell is essential for assessing legacy hardware performance, compatibility, and the evolution of Intel’s processor technologies.

## Notable For  
- First Intel microarchitecture to employ a 22 nm lithography process.  
- Direct successor to the widely adopted Sandy Bridge and Ivy Bridge families.  
- Powered both consumer (Core i7‑4770HQ) and enterprise (Haswell Xeon) product lines.  
- Served as the architectural foundation for the subsequent Broadwell and Skylake generations.  
- Recognized under multiple aliases, including HSW and 해스웰 마이크로아키텍처.

## Body  

### Overview  
Haswell is a microarchitecture designed by Intel and released in 2013. It is part of Intel’s broader microprocessor family and is classified as a microarchitecture subclass of Intel microprocessors.

### Development Timeline  
- **2013:** Publication and launch of Haswell, marking Intel’s shift to 22 nm process technology.  
- **Pre‑Haswell:** Built upon the architectural concepts of Sandy Bridge and Ivy Bridge.  
- **Post‑Haswell:** Followed by Broadwell (first 14 nm implementation) and Skylake (further refinements).

### Technical Characteristics  
- **Process node:** 22 nm lithography, enabling higher transistor density.  
- **Design lineage:** Directly follows Sandy Bridge and Ivy Bridge, inheriting many core design principles while introducing new power‑management features.  
- **Product integration:** Implemented in a range of CPUs, notably the Core i7‑4770HQ mobile processor and Haswell‑based Xeon server chips.

### Product Examples  
- **Intel Core i7‑4770HQ:** A mobile processor used in laptops, showcasing Haswell’s performance and efficiency gains.  
- **Haswell Xeon:** Server‑grade CPUs that leverage the same microarchitecture for data‑center workloads.

### Succession and Legacy  
Haswell’s architecture paved the way for the next two generations: Broadwell, which moved to a 14 nm process, and Skylake, which further refined performance and power characteristics. Its design decisions continue to influence Intel’s current microarchitectural strategies.

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  "description": "Intel's 22 nm processor microarchitecture introduced in 2013, succeeding Sandy Bridge and Ivy Bridge.",
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## References

1. Freebase Data Dumps. 2013