IBM Power9 9161

Review Cycle

March 2026

Read Time

3 min read

Technical Depth

76% Detailed

IBM Power9 9161
Source: crvi.ca

2024 Technical Deep Dive: IBM Power9 9161 Computing

Executive Summary

The IBM Power9 9161 is a high-performance computing solution designed for scale-out and scale-up applications. Based on the Power ISA, it was announced in August 2016 and manufactured using a 14 nm FinFET process. This processor family is known for its superscalar, multithreading, and multi-core capabilities, making it suitable for a wide range of server applications. With its advanced architecture and design, the Power9 9161 offers enhanced core and chip architecture for next-gen workloads, including state-of-the-art I/O subsystem technology such as NVIDIA NVLink, PCIe Gen4, and OpenCAPI.

The Power9 9161 is part of IBM's Power System E980 and E950 servers, which offer scalability of up to 64 TB of memory, up to 192 Power9 technology-based processor cores, and PCIe Gen4 I/O expandability. These servers are designed for industry-leading reliability, scalability, serviceability, and manageability, making them an attractive option for enterprise and scale-out applications.

Architecture & Design

The Power9 9161 processor is built on a 14 nm FinFET process, which provides a significant improvement in performance and power efficiency compared to its predecessors. The processor features a modular core microarchitecture, which enables a family of processors optimized for a broad range of server applications. The new microarchitecture design allows for a higher number of cores and threads, resulting in improved multithreading capabilities and increased overall system performance.

The Power9 9161 processor is available in 12- and 24-core versions, with core speeds ranging from 2.5 GHz to 4.0 GHz. The processor also features a large number of memory slots, with a maximum memory capacity of up to 4 TB. The system's I/O subsystem is designed to provide high-bandwidth and low-latency connectivity, with support for PCIe Gen4, NVIDIA NVLink, and OpenCAPI.

The Power9 9161 processor is designed to work in conjunction with IBM's Power System E980 and E950 servers, which provide a scalable and reliable platform for a wide range of applications. The servers feature a modular design, with support for multiple processor sockets, memory, and I/O expansion options. The system's architecture is designed to provide high performance, reliability, and serviceability, making it an attractive option for enterprise and scale-out applications.

SpecificationValue
Process Node14 nm FinFET
Cores12-24
Core Speed2.5 GHz - 4.0 GHz
Memory SlotsUp to 32
Max MemoryUp to 4 TB
I/O SubsystemPCIe Gen4, NVIDIA NVLink, OpenCAPI

Performance & Thermal

The Power9 9161 processor is designed to provide high performance and efficiency, with a thermal design power (TDP) of up to 190W. The processor's performance is optimized for a wide range of workloads, including commercial, technical, and high-performance computing applications. The system's performance is further enhanced by its advanced I/O subsystem, which provides high-bandwidth and low-latency connectivity.

Benchmark results for the Power9 9161 processor show significant improvements in performance compared to its predecessors. The processor has been tested on a variety of workloads, including SPEC CPU2006, SPEC CPU2017, and HPC applications. The results show that the Power9 9161 processor provides a significant boost in performance, with some workloads showing improvements of up to 50%.

The Power9 9161 processor's thermal solution is designed to provide efficient cooling and heat dissipation. The system features a advanced cooling system, which includes a combination of air and liquid cooling options. The cooling system is designed to provide high performance and reliability, while minimizing power consumption and noise levels.

Exact figures for the Power9 9161 processor's power consumption and thermal performance were not publicly disclosed. However, the system's design and architecture suggest that it is optimized for high performance and efficiency, with a focus on minimizing power consumption and heat generation.

Market Positioning

The Power9 9161 processor is positioned as a high-performance computing solution for scale-out and scale-up applications. The processor is designed to compete with other high-performance processors from vendors such as Intel and AMD. The Power9 9161 processor's advanced architecture and design, combined with its high performance and efficiency, make it an attractive option for a wide range of applications, including enterprise, technical, and high-performance computing.

The target buyer for the Power9 9161 processor is likely to be organizations that require high-performance computing solutions for a wide range of applications. This may include enterprises, research institutions, and government agencies that require high-performance computing solutions for applications such as data analytics, machine learning, and simulation.

Specifications

Technical Specifications

SpecificationDetail
Process Node14 nm FinFET
Cores12-24
Core Speed2.5 GHz - 4.0 GHz
Memory SlotsUp to 32
Max MemoryUp to 4 TB
I/O SubsystemPCIe Gen4, NVIDIA NVLink, OpenCAPI

Frequently Asked Questions

Frequently Asked Questions

What is the process node used in the Power9 9161 processor?

The Power9 9161 processor is built on a 14 nm FinFET process node.

How many cores does the Power9 9161 processor have?

The Power9 9161 processor is available in 12- and 24-core versions.

What is the core speed of the Power9 9161 processor?

The core speed of the Power9 9161 processor ranges from 2.5 GHz to 4.0 GHz.

What is the maximum memory capacity of the Power9 9161 processor?

The maximum memory capacity of the Power9 9161 processor is up to 4 TB.

What I/O subsystem is used in the Power9 9161 processor?

The Power9 9161 processor uses a high-bandwidth and low-latency I/O subsystem, including PCIe Gen4, NVIDIA NVLink, and OpenCAPI.