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The Intel Lakefield Deep Dive: Everything To Know About the First x86 Hybrid CPU
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[Image: LAKEFIELD_COMPUTE_WAFER_STUDIO_RGB_V02_L...78x452.jpg]

For the past eighteen months, Intel has paraded its new ‘Lakefield’ processor design around the press and the public as a paragon of new processor innovation.

Inside, Intel pairs one of its fast peak performance cores with four of its lower power efficient cores, and uses novel technology in order to build the processor in the smallest footprint it can. The new Lakefield design is a sign that Intel is looking into new processor paradigms, such as hybrid processors with different types of cores, but also different stacking and packaging technologies to help drive the next wave of computing. With this article, we will tell you all you need to know about Lakefield.

Part Smartphone, Part PC

When designing a processor, there are over a thousand design choices to be made. The processor can be built to tackle everything, or it can be aimed at a niche.

For high performance computing, there might be a need for a high power, high performance design where cooling is of no consideration – compare that to a processor aimed at a portable device, and it needs to be energy efficient and offer considerable battery life for a fixed battery size. There is also the cost of designing the product, how much to invest into research and development, how many units are expected to sell, and thus how many should be produced and what size the product should be. What the price range of the target market is can be a huge factor, even before putting pen to paper.

This is all why we have big multi-core processors with lots of compute acceleration in servers, more moderate power and core counts in home machines that focus on single core performance and user experience, and why smartphone processors have to physically fit into a small design and offer exceptional battery life.

Laptop processors have always sort of fit into the middle of the PC and smartphone markets. Laptop users, especially professionals and gamers, need the high performance that a desktop platform can provide, but road warriors need something that is superbly efficient in power consumption, especially at idle, to provide all-day battery life as if they were on a good smartphone. Not only this, but the more energy efficient and the smaller the footprint of the processor and its features, the thinner and lighter the laptop can be, offering a premium design experience.

As a result, we have seen the ultra-premium notebook market converge from two directions.

From the top, we have AMD and Intel, using their laptop processor designs in smaller and smaller power envelopes to offer thin and light devices with exceptional performance and yet retain the energy efficiency required for battery life. For the most premium designs, we see 12-15+ hours of laptop battery life, as well as very capable gaming.

From the bottom, we have Qualcomm, building out its high-performance smartphone processor line into larger power envelopes, in order to offer desktop-class performance with smartphone-class connectivity and battery life. With the designs using Qualcomm’s processors, a user can very easily expect 24+ hours of battery life, and with regular office use, only charge the system once every couple of days. Qualcomm still has an additional barrier in software, which it is working towards.

Both of these directions converge on something in the middle – something that can offer desktop-class performance, 24hr+ battery life, capable gaming, but also has a full range of software support. Rather continue with trying to bring its processors down to the level it requires, Intel has decided to flip its traditional processor paradigm upside down, and build a smartphone-class processor for this market, matching Qualcomm in its bottom up approach while also looking into novel manufacturing techniques in order to do so.

This processor design is called ‘Lakefield’.
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