Intel QX9775 EU80574XL088N Data Sheet

Product codes

EU80574XL088N

Datasheet

Introduction

The Intel

Core™2 Extreme processor QX9775 is a server/workstation processor using

four 45-nm Hi-k next generation Intel

Core™ microarchitecture cores. The processor

is manufactured on Intel’s 45 nanometer process technology combining high

performance with the power efficiencies of a low-power microarchitecture. The Intel

Core™2 Extreme processor QX9775 maintains the tradition of compatibility with IA-32

software.

Note:

For this document, Intel

Core™2 Extreme processor QX9775 is referred to as

“processor”.

Key processor features include on-die, primary 32-kB instruction cache and 32-kB write-

back data cache in each core and 12 MB (2 x 6 MB) Level 2 cache with Intel

Advanced

Smart Cache Architecture. The processors’ Data Prefetch Logic speculatively fetches

data to the L2 cache before an L1 cache requests occurs, resulting in reduced effective

bus latency and improved performance. The 1600 MHz Front Side Bus (FSB) is a quad-

pumped bus running from a 400 MHz system clock making 12.80 GBytes per second

data transfer rates possible.

Enhanced thermal and power management capabilities are implemented including

Intel

Thermal Monitor (TM1), Thermal Monitor 2 (TM2) and Enhanced Intel

SpeedStep

Technology. These technologies are targeted for dual processor

configurations in enterprise environments. TM1 and TM2 provide efficient and effective

cooling in high temperature situations. Enhanced Intel SpeedStep Technology provides

power management capabilities to servers and workstations.

Processor features also include Intel

Wide Dynamic Execution, enhanced floating

point and multi-media units, Streaming SIMD Extensions 2 (SSE2), Streaming SIMD

Extensions 3 (SSE3), and Streaming SIMD Extensions 4.1 (SSE4.1). Advanced

Dynamic Execution improves speculative execution and branch prediction internal to

the processor. The floating point and multi-media units include 128-bit wide registers

and a separate register for data movement. SSE3 instructions provide highly efficient

double-precision floating point, SIMD integer, and memory management operations.

The processor supports Intel

64 Architecture as an enhancement to Intel's IA-32

architecture. This enhancement allows the processor to execute operating systems and

applications written to take advantage of the 64-bit extension technology. Further

details on Intel

64 Architecture and its programming model can be found in the Intel

64 and IA-32 Architectures Software Developer’s Manual, at

http://www.intel.com/

products/processor/manuals/.

In addition, the processor supports the Execute Disable Bit functionality. When used in

conjunction with a supporting operating system, Execute Disable allows memory to be

marked as executable or non executable. This feature can prevent some classes of

viruses that exploit buffer overrun vulnerabilities and can thus help improve the overall

security of the system. Further details on Execute Disable can be found at

http://

www.intel.com/cd/ids/developer/asmo-na/eng/149308.htm

The processor supports Intel

Virtualization Technology for hardware-assisted

virtualization within the processor. Intel Virtualization Technology is a set of hardware

enhancements that can improve virtualization solutions. Intel Virtualization Technology

is used in conjunction with Virtual Machine Monitor software enabling multiple,

independent software environments inside a single platform. Further details on Intel

Virtualization Technology can be found at

http://developer.intel.com/technology/

platform-technology/virtualization/index.htm