Intel AT80604005280AA User Manual

Page of 172
Intel® Xeon® Processor 7500 Series Datasheet, Volume 1
11
Introduction
1
Introduction
ALL INFORMATION IN THIS DOCUMENT IS SUBJECT TO CHANGE.
The Intel
®
 Xeon
® 
processor 7500 series is a next-generation Intel
®
 Xeon
®
 family 
multi-core MP processor. The processor uses Intel
®
 QuickPath Interconnect Technology, 
implementing up to four high-speed serial point-to-point links. It is optimized for MP 
configurations targeted at enterprise and technical computing applications, delivering 
server-class RAS and performance. 
The Intel® Xeon® Processor 7500 Series Datasheet, Volume 1 provides DC and AC 
electrical specifications, differential signaling specifications, pinout and signal 
definitions, package mechanical specifications and thermal requirements, and 
additional features pertinent to implementation and operation of the Intel
®
 Xeon
® 
processor 7500 series. 
Intel
®
 Xeon
® 
processor 7500 series are multi-core processors, based on 45-nm 
process technology. The processor features Intel
®
 QuickPath Interconnect point-to-
point links capable of up to 6.4 GT/s, up to 24 MB of shared cache, and an integrated 
memory controller. The processors support all the existing Streaming SIMD Extensions 
2 (SSE2), Streaming SIMD Extensions 3 (SSE3) and Streaming SIMD Extensions 4 
(SSE4). The processors support several Advanced Technologies: Execute Disable Bit, 
Intel
®
 64 Technology, Enhanced Intel Speedstep
®
 Technology, Intel
®
 Virtualization 
Technology (Intel
®
 VT), and Simultaneous Multi Threading.
1.1
Terminology
A ‘_N’ after a signal name refers to an active low signal, indicating that a signal is in the 
asserted state when driven to a low level. For example, when RESET_N is low (that is, 
when RESET_N is asserted), a reset has been requested. Conversely, when TCK is high 
(that is, when TCK is asserted), a test clock request has occurred.
• DDR3 — Double Data Rate 3 synchronous dynamic random access memory 
(SDRAM) is the name of the new DDR memory standard that is being developed as 
the successor to DDR2 SDRAM.
• Enhanced Intel SpeedStep
®
 Technology — Enhanced Intel SpeedStep
®
 
Technology allows the O/S to reduce power consumption when performance is not 
needed.
• Eye Definitions — The eye at any point along the data channel is defined to be the 
creation of overlapping of a large number of UI of the data signal and timing width 
Feature
Intel® Xeon® Processor 7500 Series
Cache Sizes
Instruction Cache (L1) = 32 KB/core (I) and16 KB/core (D)
Data Cache (L2) = 256KB/core
Last Level Cache (L3) = up to 24MB shared among cores
Data Transfer Rate
Up to four full-width Intel® QuickPath Interconnect links, up to 6.4 
GT/s in each direction
Multi-Core Support
Up to 8 cores per processor
Multiple Processor Support
Up to 8 processors in a two hop topology. Up to 4 processors directly 
connected to each other.
Package
1567-land FCLGA