Chapter 2. Architecture And Technical Overview - IBM Power 780 Technical Overview And Introduction

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Architecture and technical
Chapter 2.
overview
The IBM Power 770 offers a 4-socket CEC enclosure, populated with 3-core or 4-core
POWER7+ processors. A fully-configured 4-drawer system has either 48 or 64 cores,
depending on which processor is specified.
The IBM Power 780 offers the same 4-socket CEC enclosure, populated with 4-core or 8-core
POWER7+ processors. This architecture offers a maximum system configuration of 64 or 128
cores, depending on the processor option chosen.
This chapter provides an overview of the system architecture and its major components. The
bandwidths that are provided are theoretical maximums used for reference.
The speeds shown are at an individual component level. Multiple components and application
implementation are key to achieving the best performance.
Always do the performance sizing at the application workload environment level and evaluate
performance by using real-world performance measurements and production workloads.
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