Previous-generation Intel® microarchitecture based on 45nm introduced several manufacturing technology breakthroughs. Among these, it became the first Intel® microarchitecture to use hafnium-based high-k metal gate transistors. Previous-generation Intel® microarchitecture based on 45nm also enabled higher levels of energy-efficient parallel processing performance by integrating a memory controller into the processor.
Scalable multi-core performance
Previous-generation Intel® microarchitecture code name Nehalem (pictured) delivers:
- Dynamic scalability
- Design and performance scalability to address a wide range of applications, including PC and embedded designs
- Support for two to eight and more cores and up to sixteen or more threads with Intel® Hyper-Threading Technology (Intel® HT Technology)1
- Scalable cache sizes, system interconnects, and integrated memory controllers
- Intelligent performance on-demand with Intel® Turbo Boost Technology2, taking advantage of the processor's power and thermal headroom
- Increased performance on highly-threaded applications with Intel® HT Technology, bringing high performance applications into mainstream computing with 1–16+ threads optimized for this multi-core processor architecture
- Scalable shared memory, which features memory distributed to each processor with integrated memory controllers and Intel® QuickPath Technology high-speed point-to-point interconnects
- Multi-level shared cache, which improves performance and efficiency by reducing latency to frequently used data
Learn more
For an in-depth understanding of previous generation Intel® microarchitecture code name Nehalem, check out the following resources:
Intel Microarchitecture Based on 45nm: Demo
First the Tick, Now the Tock: Intel® Microarchitecture (Nehalem)
The 2nd generation Intel® Core™ processors based on Intel® 32nm process technology feature second-generation high-k + metal gate transistors for improved performance and reduced power.


