Why IBM mainframe servers?

IBM Z® mainframes deliver millisecond response time, extreme reliability, near 100% uptime and the world’s best security.

The newest mainframe, IBM z14, is designed for trusted digital experiences. This enterprise system delivers pervasive encryption, stronger clouds, real time insights, machine learning and transparent blockchain.


Pervasive encryption is
100% mainframe

Compare mainframes


Find the right mainframe to match your needs

IBM z14

IBM z14

The newest generation mainframe enables the ultimate protection for your data, simplifies compliance, harnesses machine learning and is the better cloud data center platform.

IBM z14

IBM z13

This earlier generation speeds insight, protects transactions to minimise exposure and risk and offers scale. It was the best mainframe available until the z14.

IBM z14

IBM z13s

This mainframe offers the capabilities of the z13 in a smaller footprint and affordable price. It’s a lower entry point for a highly available and secure system for hybrid cloud and real-time analytics.

IBM z14


Since its introduction clients have benefited from low cost mainframe computing and granular growth options.

Explore mainframe server technology

I/O connectivity (US)

IBM mainframes can have up to 320 individual channels for input and output (I/O) connectivity with plenty of room for scalability and “always on” capability.

Networking (US)

Ongoing advances in hardware and TCP/IP networking reinforce the integral role of the mainframe for an on-demand operating environment to keep your network strong and secure.


Resiliency (US)

With IBM Z, planned outages are a thing of the past, allowing applications to stay up 24 x 7, all while making concurrent changes to the environment if needed.



IBM mainframes offer enterprise security across cloud, blockchain and analytics. They anticipate vulnerabilities and provide multiple levels of security from infrastructure to endpoint.



GDPS, a unique IBM mainframe technology, can manage high availability and potential disaster recovery from any virtual location.


The Large System Performance Reference or (LSPR) ratios are IBM's assessment of relative processor capacity in an unconstrained environment for specific benchmark workloads and system control programs.

Parallel Sysplex (US)

Multi-system data sharing allows direct and concurrent read/write access to shared data from all processing nodes without sacrificing performance or integrity.


More server technologies (US)

With IBM Z, you benefit from the technical innovations built for the world's most trusted server and lowest cost per transaction system