Datasheet

Intel Xeon Processor E7-8800/4800/2800 Product Families Architecture
14 Datasheet Volume 2 of 2
2.1.1 Intel
®
Xeon
®
Processor 7500 Series-Based Platform
Overview
Figure 2-1 provides a Intel
®
Xeon
®
Processor 7500 Series-Based platform overview of
a fully connected four-socket, two-IOH configuration. Each Intel Xeon Processor E7-
8800/4800/2800 Product Families are connected to every other Intel Xeon Processor
E7-8800/4800/2800 Product Families socket using three of the Intel QuickPath
Interconnects. This enables each Intel Xeon Processor E7-8800/4800/2800 Product
Families to be one link hop from each other and enables the support of a two-hop
snoop protocol. The fourth Intel QuickPath Interconnect is used to connect to an IO
Hub (IOH).
LLC error protection DECTED on Data DECTED on Data SECDED on Tags
Node ID bits supported 5 5
Node IDs used per socket 3 3 Home/Caching agent 01,
11, and Ubox 10
Bbox tracker entries 256 256 Maximum HA tracker
entries
DCA yes yes Direct cache access via
PrefetchHint
SCA yes yes Standard Configuration
Architecture
OOB interface PECI PECI Out-of-Band Interface
Table 2-1. Intel
®
Xeon
®
Processor E7-8800/4800/2800 Product Families and Intel
®
Xeon
®
Processor 7500 Series Key Features (Sheet 2 of 2)
Features
Intel® Xeon®
Processor 7500
Series
Intel® Xeon®
Processor E7-
8800/4800/2800
Product Families
Comments
Figure 2-1. Intel
®
Xeon
®
Processor 7500 Series-Based Platform Block Diagram, Four-
socket Two-IOH Configuration
Intel® Xeon®
Processor E7-
8800/4800/2800
Product Families
Intel® Xeon®
Processor E7-
8800/4800/2800
Product Families
Intel® Xeon®
Processor E7-
8800/4800/2800
Product Families
Intel® Xeon®
Processor E7-
8800/4800/2800
Product Families
IOH IOH