Arm Unveils Neoverse V3 and N3 CPU Cores: Empowering Speed and Scale with Cutting-Edge CSS

Arm is set to release its next generation of Neoverse CPU core designs, including the high-performance V3 and balanced N3 architectures, which offer improved single-threaded performance and support for the latest I/O and memory formats, as well as providing customers with off-the-shelf and customizable options for integration into their chip designs.

The Neoverse initiative has been successful in establishing Arm's presence in the server, cloud, and infrastructure CPU market.
The new V3 and N3 CPU core designs cater to different segments of the market, providing customers with flexible options.
The V3 and N3 architectures offer improved single-threaded performance and support for the latest I/O and memory formats, making them suitable for a wide range of workloads.

ARM, the semiconductor company, is gearing up to release its next generation of Neoverse CPU core designs. The Neoverse initiative, which was introduced over five years ago, aimed to establish Arm’s presence in the server, cloud, and infrastructure CPU market. Now, with the demand for AI hardware driving transformative changes in the compute market, Arm is ready to unveil its latest products.

The new CPU architectures, named V3 (codenamed Poseidon) and N3 (codenamed Hermes), cater to different segments of the market. The V3 CPU core is designed for high-performance systems, while the N3 CPU core is focused on delivering a balanced performance. Arm is providing customers with both the individual CPU core designs and the larger Compute Subsystems (CSS) for integration into their own chip designs.

It’s important to note that Arm has not disclosed deep architectural details about these new Neoverse platforms yet. However, they have shared some high-level information about the hardware and basic performance estimates. The CPU cores are expected to offer improved single-threaded performance and support for the latest I/O and memory formats.

The Neoverse V3 CPU core, which targets high-performance applications, can accommodate up to 64 cores on a single die or 128 cores on a single socket. While Arm has not provided a specific performance estimate, simulations suggest a 10-20% improvement for most workloads. The V3 architecture introduces enhancements to the mesh fabric and offers support for CXL 3.0, HBM3, and other memory formats.

For the first time in the V-series, Arm is offering an off-the-shelf CSS version of the IP, allowing customers to quickly integrate it into their chip designs. This initiative has been successful with cloud service providers like Microsoft adopting it for their own chip designs. Arm also aims to simplify the integration process by providing die-to-die connections.

Arm’s Neoverse N3 CPU core, on the other hand, focuses on balanced and power-efficient performance. The N3 CSS design supports a range of CPU cores, from 8 to 32, and offers an average 20% improvement in performance-per-watt compared to its predecessor. The N3 architecture includes enhancements to the cache and memory subsystem, resulting in significant performance improvements for AI data analytics workloads.

Both the V3 and N3 architectures support the latest I/O and memory standards, such as PCIe 5.0 and CXL 3.0. Arm’s chiplet ecosystem initiative, the Arm Chiplet System Architecture (CSA), allows customers to easily mix and match chiplets in their products.

Looking ahead, Arm has provided codenames for future CPU core releases, including Lycius for the next E-series core, Dionysus for the next N-series core, and Adonis for the next V-series core. These designs are still in development, and Arm has not provided a timeline for their release.

Overall, Arm’s Neoverse CPU cores continue to gain popularity in the cloud and infrastructure market. With the upcoming V3 and N3 architectures, Arm aims to meet the evolving demands of the compute market while providing customers with flexible and efficient solutions.

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Background Information

About ARM: ARM, originally known as Acorn RISC Machine, is a British semiconductor and software design company that specializes in creating energy-efficient microprocessors, system-on-chip (SoC) designs, and related technologies. Founded in 1990, ARM has become a important player in the global semiconductor industry and is widely recognized for its contributions to mobile computing, embedded systems, and Internet of Things (IoT) devices. ARM's microprocessor designs are based on the Reduced Instruction Set Computing (RISC) architecture, which prioritizes simplicity and efficiency in instruction execution. This approach has enabled ARM to produce highly efficient and power-saving processors that are used in a vast array of devices, ranging from smartphones and tablets to IoT devices, smart TVs, and more. The company does not manufacture its own chips but licenses its processor designs and intellectual property to a wide range of manufacturers, including Qualcomm, Apple, Samsung, and NVIDIA, who then integrate ARM's technology into their own SoCs. This licensing model has contributed to ARM's widespread adoption and influence across various industries.

About Microsoft: Microsoft, founded by Bill Gates and Paul Allen in 1975 in Redmond, Washington, USA, is a technology giant known for its wide range of software products, including the Windows operating system, Office productivity suite, and cloud services like Azure. Microsoft also manufactures hardware, such as the Surface line of laptops and tablets, Xbox gaming consoles, and accessories.

Technology Explained

chiplet: Chiplets are a new type of technology that is revolutionizing the computer industry. They are small, modular components that can be used to build powerful computing systems. Chiplets are designed to be used in combination with other components, such as processors, memory, and storage, to create a complete system. This allows for more efficient and cost-effective production of computers, as well as more powerful and versatile systems. Chiplets can be used to create powerful gaming PCs, high-end workstations, and even supercomputers. They are also being used in the development of artificial intelligence and machine learning applications. Chiplets are an exciting new technology that is changing the way we build and use computers.

chiplets: Chiplets are a new type of technology that is revolutionizing the computer industry. They are small, modular components that can be used to build a variety of computer systems. Chiplets are designed to be highly efficient and cost-effective, allowing for the creation of powerful and complex systems without the need for large, expensive components. They are also highly customizable, allowing for the creation of systems tailored to specific needs. Chiplets are being used in a variety of applications, from high-end gaming PCs to embedded systems and even supercomputers. They are also being used to create powerful AI systems, allowing for the development of more advanced and intelligent machines. Chiplets are revolutionizing the computer industry, allowing for the creation of powerful and efficient systems at a fraction of the cost.

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.

PCIe: PCIe (Peripheral Component Interconnect Express) is a high-speed serial computer expansion bus standard for connecting components such as graphics cards, sound cards, and network cards to a motherboard. It is the most widely used interface in the computer industry today, and is used in both desktop and laptop computers. PCIe is capable of providing up to 16 times the bandwidth of the older PCI standard, allowing for faster data transfer speeds and improved performance. It is also used in a variety of other applications, such as storage, networking, and communications. PCIe is an essential component of modern computing, and its applications are only expected to grow in the future.