Note:
() - ( ) () - ( )
Core 2 Quad Q8400 specifications
General information
Type
CPU / Microprocessor
Market segment
Desktop
Family
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
Part number
ES/QS processors
Production processors
QLQN
SLGT6
AT80580PJ0674ML
+
AT80580PJ067HL
+
BX80580Q8400
+
BXC80580Q8400
+
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 SI