Intel Core 2 Quad Q8400s vs Intel Core 2 Duo SP9600

Comparative analysis of Intel Core 2 Quad Q8400s and Intel Core 2 Duo SP9600 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Security & Reliability, Advanced Technologies, Virtualization.

Intel Core 2 Quad Q8400s

Intel Core 2 Duo SP9600

Differences

Reasons to consider the Intel Core 2 Quad Q8400s

CPU is newer: launch date 1 month(s) later
2 more cores, run more applications at once: 4 vs 2
Around 6% higher clock speed: 2.67 GHz vs 2.53 GHz
2x more L1 cache, more data can be stored in the L1 cache for quick access later

Launch date	April 2009 vs 1 March 2009
Number of cores	4 vs 2
Maximum frequency	2.67 GHz vs 2.53 GHz
L1 cache	256 KB vs 128 KB

Reasons to consider the Intel Core 2 Duo SP9600

Around 38% higher maximum core temperature: 105°C vs 76.3°C
Around 50% more L2 cache; more data can be stored in the L2 cache for quick access later
2.6x lower typical power consumption: 25 Watt vs 65 Watt

Maximum core temperature	105°C vs 76.3°C
L2 cache	6134 KB vs 4096 KB
Thermal Design Power (TDP)	25 Watt vs 65 Watt

Compare specifications (specs)

	Intel Core 2 Quad Q8400s	Intel Core 2 Duo SP9600
Essentials
Architecture codename	Yorkfield	Penryn
Launch date	April 2009	1 March 2009
Place in performance rating	not rated	not rated
Processor Number	Q8400S	SP9600
Series	Legacy Intel® Core™ Processors	Legacy Intel® Core™ Processors
Status	Discontinued	Discontinued
Vertical segment	Desktop	Mobile
Launch price (MSRP)		$316
Performance
64 bit support
Base frequency	2.66 GHz	2.53 GHz
Bus Speed	1333 MHz FSB	1066 MHz FSB
Die size	164 mm2	107 mm2
L1 cache	256 KB	128 KB
L2 cache	4096 KB	6134 KB
Manufacturing process technology	45 nm	45 nm
Maximum case temperature (TCase)	76 °C
Maximum core temperature	76.3°C	105°C
Maximum frequency	2.67 GHz	2.53 GHz
Number of cores	4	2
Transistor count	456 million	410 million
VID voltage range	0.8500V-1.3625V	1.050V-1.150V
Front-side bus (FSB)		1066 MHz
Number of threads		2
Memory
Supported memory types	DDR1, DDR2, DDR3
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1
Package Size	37.5mm x 37.5mm	22mm x 22mm
Sockets supported	LGA775	BGA956
Thermal Design Power (TDP)	65 Watt	25 Watt
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Intel 64
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Thermal Monitoring
FSB parity
Virtualization
Intel® Virtualization Technology (VT-x)