General information

Type

CPU / Microprocessor

Market segment

Desktop

Core 2 Quad

Model number?

Q8400

CPU part numbers

• AT80580PJ0674MLis an OEM/tray microprocessor

• AT80580PJ067HLis an OEM/tray microprocessor

• BX80580Q8400is a boxed processor with fan and heatsink (English version)

• BXC80580Q8400is a boxed processor with fan and heatsink (Chinese version)

Frequency?

2667 MHz

Bus speed?

1333 MHz

Clock multiplier?

8

Package

775-land Flip-Chip Land Grid Array (FC-LGA8)
1.48" x 1.48" (3.75 cm x 3.75 cm)

Socket

Socket 775

Introduction date

Apr 19, 2009

End-of-Life date

Last order date is August 26, 2011
Last shipment date for tray processors is February 10, 2012

Price at introduction

$183

S-spec numbers

Architecture / Microarchitecture

Microarchitecture

Core

Processor core?

Yorkfield

Core stepping?

R0 (QLQN, SLGT6)

CPUID

1067A (QLQN, SLGT6)

Manufacturing process

0.045 micron
456 million transistors

Die

164mm2

Data width

64 bit

The number of CPU cores

4

The number of threads

4

Floating Point Unit

Integrated

Level 1 cache size?

4 x 32 KB 8-way set associative instruction caches
4 x 32 KB 8-way set associative data caches

Level 2 cache size?

2 x 2 MB 8-way set associative caches (each L2 cache is shared between 2 cores)

Multiprocessing

Uniprocessor

Features

• MMX instructions

• SSE / Streaming SIMD Extensions

• SSE2 / Streaming SIMD Extensions 2

• SSE3 / Streaming SIMD Extensions 3

• SSSE3 / Supplemental Streaming SIMD Extensions 3

• SSE4.1 / Streaming SIMD Extensions 4.1?

• EM64T / Extended Memory 64 technology / 64?

• NX / XD / Execute disable bit?

• VT-x / Virtualization technology?

Low power features

• Enhanced SpeedStep technology?

• Stop Grant state?

• Halt state

• Extended Halt state

• Extended Stop Grant State

• Sleep state?

• Deep Sleep state?

• Deeper Sleep state?

Integrated peripherals / components

Integrated graphics

None

Electrical / Thermal parameters

V core?

0.85V - 1.3625V

Minimum/Maximum operating temperature?

5°C - 71.4°C

Thermal Design Power?

95 Watt