Intel Pentium D 940 HH80553PG0884M User Manual

9

The Intel

®

 Pentium

®

 D processor 900 sequence and Intel

®

 Pentium

®

 processor Extreme Edition 955, 

965 deliver Intel's advanced, powerful processors for desktop PCs that are based on the Intel 

NetBurst

®

 microarchitecture. The processor is designed to deliver performance across applications 

and usages where end-users can truly appreciate and experience the performance. These applications 

include Internet audio and streaming video, image processing, video content creation, speech, 3D, 

CAD, games, multimedia, and multitasking user environments.

Intel

®

 64

Φ

 architecture enables the processor to execute operating systems and applications written 

to take advantage of the Intel

®

 64 architecture. The processor supporting Enhanced Intel 

Speedstep

®

 technology allows tradeoffs to be made between performance and power consumption.

The Pentium D processor 900 sequence and Pentium processor Extreme Edition 955, 965 also include 

the Execute Disable Bit capability. This feature, combined with a supported operating system, allows 

memory to be marked as executable or non-executable.

The Pentium D processors 960, 950, 940, 930, and 920 and Pentium processor Extreme Edition 955, 

965 support Intel

®

 Virtualization Technology. Virtualization Technology provides silicon-based 

functionality that works together with compatible Virtual Machine Monitor (VMM) software to improve 

on software-only solutions. 

• Available at 3.46 GHz and 3.73 GHz (Intel 

Pentium processor Extreme Edition 955, 965 

only)

• Available at 3.60 GHz, 3.40 GHz, 3.20 GHz, 

3 GHz, and 2.80 GHz (Intel Pentium D 

processor 900 sequence only)

• Enhanced Intel Speedstep

®

 Technology 

(Intel Pentium D processor 900 sequence 

only)

• Supports  Intel

®

 64

Φ 

architecture

• Supports  Intel

® 

Virtualization Technology 

(Not on Pentium D processors 945, 925, and 

915)

• Supports Execute Disable Bit capability
• Binary compatible with applications running 

on previous members of the Intel 

microprocessor line

• Intel NetBurst

®

 microarchitecture

• FSB frequency at 800 MHz (Pentium D 

processor 900 sequence only)

• FSB frequency at 1066 MHz (Pentium 

processor Extreme Edition 955, 965 only) 

• Hyper-Pipelined Technology 
• Advance Dynamic Execution 
• Very deep out-of-order execution

• Enhanced branch prediction
• Optimized for 32-bit applications running on 

advanced 32-bit operating systems

• Two 16-KB Level 1 data caches
• Two 2 MB Advanced Transfer Caches (on-die, 

full-speed Level 2 (L2) cache) with 8-way 

associativity and Error Correcting Code 

(ECC)

• 144 Streaming SIMD Extensions 2 (SSE2) 

instructions

• 13 Streaming SIMD Extensions 3 (SSE3) 

instructions

• Enhanced floating point and multimedia unit 

for enhanced video, audio, encryption, and 

3D performance

• Power Management capabilities 
• System Management mode 
• Multiple low-power states
• 8-way cache associativity provides improved 

cache hit rate on load/store operations

• 775-land Package