Intel Core™ i7-860 Processor (8M Cache, 2.80 GHz) BX8060517860 User Manual
Product codes
BX8060517860
Datasheet
11
Introduction
1
Introduction
The Intel
®
Core™ i7 processor Extreme Edition and Intel
®
Core™ i7 processor are
intended for high performance high-end desktop, Uni-processor (UP) server, and
workstation systems. The processor implements key new technologies:
workstation systems. The processor implements key new technologies:
• Integrated Memory Controller
• Point-to-point link interface based on Intel
• Point-to-point link interface based on Intel
®
QuickPath Interconnect (Intel
®
QPI).
Reference to this interface may sometimes be abbreviated with Intel QPI
throughout this document.
throughout this document.
Note:
In this document the Intel
®
Core™ i7 processor Extreme Edition and Intel
®
Core™ i7
processor will be referred to as “the processor.”
This datasheet provides register descriptions for some of the registers located on the
processor.
processor.
The processor is optimized for performance with the power efficiencies of a low-power
microarchitecture to enable smaller, quieter systems.
microarchitecture to enable smaller, quieter systems.
The Intel
®
Core™ i7 processor Extreme Edition and Intel
®
Core™ i7 processor are
multi-core processors, based on 45 nm process technology. Processor features vary by
component and include up to two Intel QuickPath Interconnect point to point links
capable of up to 6.4 GT/s, up to 8 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 processor supports several Advanced Technologies: Execute Disable Bit,
Intel
component and include up to two Intel QuickPath Interconnect point to point links
capable of up to 6.4 GT/s, up to 8 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 processor supports several Advanced Technologies: Execute Disable Bit,
Intel
®
64 Technology, Enhanced Intel SpeedStep
®
Technology, Intel
®
Virtualization
Technology (Intel
®
VT), Intel
®
Turbo Boost Technology, and Hyper-Threading
Technology.
1.1
Terminology
A ‘#’ symbol after a signal name refers to an active low signal, indicating a signal is in
the active state when driven to a low level. For example, when RESET# is low, a reset
has been requested.
the active state when driven to a low level. For example, when RESET# is low, a reset
has been requested.
1.1.1
Processor Terminology
Commonly used terms are explained here for clarification:
• 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.
the successor to DDR2 SDRAM.
• Enhanced Intel SpeedStep
®
Technology — Enhanced Intel SpeedStep
Technology allows trade-offs to be made between performance and power
consumption.
consumption.
• Execute Disable Bit — Execute Disable allows memory to be marked as
executable or non-executable, when combined with a supporting operating system.
If code attempts to run in non-executable memory the processor raises an error to
the operating system. This feature can prevent some classes of viruses or worms
that exploit buffer over run vulnerabilities and can thus help improve the overall
security of the system. See the Intel Architecture Software Developer's Manual for
If code attempts to run in non-executable memory the processor raises an error to
the operating system. This feature can prevent some classes of viruses or worms
that exploit buffer over run vulnerabilities and can thus help improve the overall
security of the system. See the Intel Architecture Software Developer's Manual for