Intel’s 15th Gen Arrow Lake CPUs to Feature “Adamantine” L4 Cache Below CPU Tile


September 24, 2023

Intel’s 15th Gen Arrow Lake CPUs to Feature “Adamantine” L4 Cache Below CPU Tile

Summary: Intel is set to revolutionize the world of processors with its 15th Gen Arrow Lake CPUs, featuring a technology that rivals AMD's 3D V-Cache, leveraging disaggregated cache dies, 3D silicon, EMIB, and Foveros to deliver improved latency optimizations and enhanced overall system performance.

  • Intel's 15th Gen Arrow Lake CPUs are set to bring exciting advancements to the world of processors
  • Intel's approach to this technology differs from how TSMC does it with some of its customers
  • Intel plans to offer 3D stacking and packaging technologies to its Foundry (IFS) customers


Intel’s 15th Gen Arrow Lake CPUs are set to bring some exciting advancements to the world of processors. The company’s CEO, Pat Gelsinger, recently spoke to Tom’s Hardware about Intel’s plans to implement a technology that rivals AMD’s 3D V-Cache in future CPUs. This technology involves leveraging disaggregated cache dies in processors, including the upcoming 15th Gen Arrow Lake-S and potentially the 16th Gen Lunar Lake.

Gelsinger explained that Intel’s approach to this technology differs from how TSMC does it with some of its customers. Intel will be using 3D silicon, where the cache will be located on one die, while the CPU compute will be on a stacked die on top of it. This composition will be made possible by using EMIB (Embedded Multi-Die Interconnect Bridge), a technology known as Foveros. This allows Intel to combine different capabilities and create advanced memory architectures.

The specific cache codenamed Adamantine or L4 cache has been the subject of leaks in the past. Unlike AMD’s V-Cache dies, the Adamantine or L4 cache die will be positioned directly below the CPU tile on the interposer. This cache will play a crucial role in optimizing latency by caching data from the CPU, integrated GPU (iGPU), and potentially even the Platform Controller Hub (PCH). The benefits of this technology extend beyond just CPU gaming; it will also improve boot times, iGPU performance, and I/O latency.

It’s important to note that the Adamantine or L4 cache will not be featured in Intel’s upcoming Meteor Lake CPUs. However, it will be included in future products. The stacking of the CPU tile on top of the cache die will be made possible through Foveros 3D stacking and EMIB interconnect technologies. Intel also plans to offer these 3D stacking and packaging technologies to its Foundry (IFS) customers, providing an alternative to TSMC’s CoWoS (Chip-on-Wafer-on-substrate) technology.

Intel’s advancements in 3D stacked processors and cache technology demonstrate the company’s commitment to pushing the boundaries of CPU performance. With the implementation of the Adamantine or L4 cache, Intel aims to deliver improved latency optimizations and enhanced overall system performance. These developments will undoubtedly be welcomed by gamers, professionals, and anyone seeking high-performance computing solutions.

As Intel continues to innovate and refine its processor technologies, we can expect even more exciting advancements in the future. The 15th Gen Arrow Lake CPUs are just the beginning of what promises to be a new era of computing power and efficiency. Stay tuned for more updates on Intel’s developments in the world of processors.

(Source)

Background Information


About AMD: AMD, a large player in the semiconductor industry is known for its powerful processors and graphic solutions, AMD has consistently pushed the boundaries of performance, efficiency, and user experience. With a customer-centric approach, the company has cultivated a reputation for delivering high-performance solutions that cater to the needs of gamers, professionals, and general users. AMD's Ryzen series of processors have redefined the landscape of desktop and laptop computing, offering impressive multi-core performance and competitive pricing that has challenged the dominance of its competitors. Complementing its processor expertise, AMD's Radeon graphics cards have also earned accolades for their efficiency and exceptional graphical capabilities, making them a favored choice among gamers and content creators. The company's commitment to innovation and technology continues to shape the client computing landscape, providing users with powerful tools to fuel their digital endeavors.

AMD Website: https://www.amd.com/
AMD LinkedIn: https://www.linkedin.com/company/amd/

About Intel: Intel Corporation, a global technology leader, is for its semiconductor innovations that power computing and communication devices worldwide. As a pioneer in microprocessor technology, Intel has left an indelible mark on the evolution of computing with its processors that drive everything from PCs to data centers and beyond. With a history of advancements, Intel's relentless pursuit of innovation continues to shape the digital landscape, offering solutions that empower businesses and individuals to achieve new levels of productivity and connectivity.

Intel Website: https://www.intel.com/
Intel LinkedIn: https://www.linkedin.com/company/intel-corporation/

About TSMC: TSMC, or Taiwan Semiconductor Manufacturing Company, is a semiconductor foundry based in Taiwan. Established in 1987, TSMC is a important player in the global semiconductor industry, specializing in the manufacturing of semiconductor wafers for a wide range of clients, including technology companies and chip designers. The company is known for its semiconductor fabrication processes and plays a critical role in advancing semiconductor technology worldwide.



Technology Explained


CPU: The Central Processing Unit (CPU) is the brain of a computer, responsible for executing instructions and performing calculations. It is the most important component of a computer system, as it is responsible for controlling all other components. CPUs are used in a wide range of applications, from desktop computers to mobile devices, gaming consoles, and even supercomputers. CPUs are used to process data, execute instructions, and control the flow of information within a computer system. They are also used to control the input and output of data, as well as to store and retrieve data from memory. CPUs are essential for the functioning of any computer system, and their applications in the computer industry are vast.


Foundry: A foundry is a dedicated manufacturing facility focused on producing semiconductor components like integrated circuits (ICs) for external clients. These foundries are pivotal in the semiconductor industry, providing diverse manufacturing processes and technologies to create chips based on designs from fabless semiconductor firms or other customers. This setup empowers companies to concentrate on innovative design without needing substantial investments in manufacturing infrastructure. Some well-known foundries include TSMC (Taiwan Semiconductor Manufacturing Company), Samsung Foundry, GlobalFoundries, and UMC (United Microelectronics Corporation).


GPU: GPU stands for Graphics Processing Unit and is a specialized type of processor designed to handle graphics-intensive tasks. It is used in the computer industry to render images, videos, and 3D graphics. GPUs are used in gaming consoles, PCs, and mobile devices to provide a smooth and immersive gaming experience. They are also used in the medical field to create 3D models of organs and tissues, and in the automotive industry to create virtual prototypes of cars. GPUs are also used in the field of artificial intelligence to process large amounts of data and create complex models. GPUs are becoming increasingly important in the computer industry as they are able to process large amounts of data quickly and efficiently.


iGPU: An integrated Graphics Processing Unit (iGPU) is a component built into a computer's central processing unit (CPU) or system-on-chip (SoC) that handles graphical tasks. Unlike dedicated graphics cards, which are separate components, an iGPU shares system resources with the CPU, allowing for basic graphics capabilities without the need for an additional card. While typically less powerful than dedicated GPUs, iGPUs are energy-efficient and well-suited for everyday computing tasks


latency: Technology latency is the time it takes for a computer system to respond to a request. It is an important factor in the performance of computer systems, as it affects the speed and efficiency of data processing. In the computer industry, latency is a major factor in the performance of computer networks, storage systems, and other computer systems. Low latency is essential for applications that require fast response times, such as online gaming, streaming media, and real-time data processing. High latency can cause delays in data processing, resulting in slow response times and poor performance. To reduce latency, computer systems use various techniques such as caching, load balancing, and parallel processing. By reducing latency, computer systems can provide faster response times and improved performance.


substrate: The technology substrate is a layer of material that provides a foundation for the components of a computer system. It is the foundation upon which the components of a computer system are built. It is usually made of a material such as silicon, which is a semiconductor material. The technology substrate is used to create the circuits and pathways that allow the components of a computer system to communicate with each other. It is also used to create the physical structure of the computer system, such as the motherboard, memory, and other components. The technology substrate is essential for the functioning of a computer system, as it provides the necessary pathways for the components to communicate with each other. It is also used to create the physical structure of the computer system, such as the motherboard, memory, and other components.



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