Intel Core 2 Quad Q9500 vs Intel Core 2 Duo E6400

Comparative analysis of Intel Core 2 Quad Q9500 and Intel Core 2 Duo E6400 processors for all known characteristics in the following categories: Essentials, Performance, Compatibility, Security & Reliability, Advanced Technologies, Virtualization, Memory. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, 3DMark Fire Strike - Physics Score, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s).

Intel Core 2 Quad Q9500

Intel Core 2 Duo E6400

Differences

Reasons to consider the Intel Core 2 Quad Q9500

2 more cores, run more applications at once: 4 vs 2
Around 16% higher maximum core temperature: 71.4°C vs 61.4°C
A newer manufacturing process allows for a more powerful, yet cooler running processor: 45 nm vs 65 nm
Around 47% better performance in PassMark - Single thread mark: 1216 vs 826
2.8x better performance in PassMark - CPU mark: 2226 vs 783
Around 62% better performance in Geekbench 4 - Single Core: 395 vs 244
3x better performance in Geekbench 4 - Multi-Core: 1225 vs 413

Specifications (specs)
Number of cores	4 vs 2
Maximum core temperature	71.4°C vs 61.4°C
Manufacturing process technology	45 nm vs 65 nm
Benchmarks
PassMark - Single thread mark	1216 vs 826
PassMark - CPU mark	2226 vs 783
Geekbench 4 - Single Core	395 vs 244
Geekbench 4 - Multi-Core	1225 vs 413

Reasons to consider the Intel Core 2 Duo E6400

Around 46% lower typical power consumption: 65 Watt vs 95 Watt

Thermal Design Power (TDP)	65 Watt vs 95 Watt

Compare benchmarks

CPU 1: Intel Core 2 Quad Q9500
CPU 2: Intel Core 2 Duo E6400

PassMark - Single thread mark

CPU 1

CPU 2

1216

826

PassMark - CPU mark

CPU 1

CPU 2

2226

783

Geekbench 4 - Single Core

CPU 1

CPU 2

395

244

Geekbench 4 - Multi-Core

CPU 1

CPU 2

1225

413

Name	Intel Core 2 Quad Q9500	Intel Core 2 Duo E6400
PassMark - Single thread mark	1216	826
PassMark - CPU mark	2226	783
Geekbench 4 - Single Core	395	244
Geekbench 4 - Multi-Core	1225	413
3DMark Fire Strike - Physics Score	0
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	0.762
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	28.113
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.158

Compare specifications (specs)

	Intel Core 2 Quad Q9500	Intel Core 2 Duo E6400
Essentials
Architecture codename	Yorkfield	Conroe
Place in performance rating	2918	2915
Processor Number	Q9500	E6400
Series	Legacy Intel® Core™ Processors	Legacy Intel® Core™ Processors
Status	Discontinued	Discontinued
Vertical segment	Desktop	Desktop
Launch date		July 2006
Price now		$19.95
Value for money (0-100)		19.03
Performance
64 bit support
Base frequency	2.83 GHz	2.13 GHz
Bus Speed	1333 MHz FSB	1066 MHz FSB
Die size	164 mm2	111 mm2
Manufacturing process technology	45 nm	65 nm
Maximum core temperature	71.4°C	61.4°C
Number of cores	4	2
Transistor count	456 million	167 million
VID voltage range	0.8500V-1.3625V	0.8500V-1.5V
L1 cache		64 KB
L2 cache		2048 KB
Maximum frequency		2.13 GHz
Compatibility
Low Halogen Options Available
Package Size	37.5mm x 37.5mm	37.5mm x 37.5mm
Sockets supported	LGA775	PLGA775, LGA775
Thermal Design Power (TDP)	95 Watt	65 Watt
Max number of CPUs in a configuration		1
Scenario Design Power (SDP)		0 W
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Intel 64
Intel® Demand Based Switching
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Thermal Monitoring
FSB parity
Intel® AES New Instructions
Virtualization
Intel® Virtualization Technology (VT-x)
Memory
Supported memory types		DDR1, DDR2, DDR3