Intel Core 2 Duo E8500 vs Intel Core 2 Quad Q9400

Comparative analysis of Intel Core 2 Duo E8500 and Intel Core 2 Quad Q9400 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, 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), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), 3DMark Fire Strike - Physics Score, CompuBench 1.5 Desktop - Video Composition (Frames/s).

Intel Core 2 Duo E8500

Intel Core 2 Quad Q9400

Differences

Reasons to consider the Intel Core 2 Duo E8500

Around 25% higher clock speed: 3.33 GHz vs 2.67 GHz
Around 1% higher maximum core temperature: 72.4°C vs 71.4°C
Around 46% lower typical power consumption: 65 Watt vs 95 Watt
Around 16% better performance in PassMark - Single thread mark: 1323 vs 1139
Around 17% better performance in Geekbench 4 - Single Core: 439 vs 376

Specifications (specs)
Maximum frequency	3.33 GHz vs 2.67 GHz
Maximum core temperature	72.4°C vs 71.4°C
Thermal Design Power (TDP)	65 Watt vs 95 Watt
Benchmarks
PassMark - Single thread mark	1323 vs 1139
Geekbench 4 - Single Core	439 vs 376

Reasons to consider the Intel Core 2 Quad Q9400

2 more cores, run more applications at once: 4 vs 2
4x more L1 cache, more data can be stored in the L1 cache for quick access later
Around 67% better performance in PassMark - CPU mark: 2150 vs 1290
Around 53% better performance in Geekbench 4 - Multi-Core: 1151 vs 754
Around 67% better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 0.574 vs 0.344
Around 15% better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 26.509 vs 23.046
Around 58% better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 0.136 vs 0.086
Around 68% better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 4.189 vs 2.496

Specifications (specs)
Number of cores	4 vs 2
L1 cache	256 KB vs 64 KB
Benchmarks
PassMark - CPU mark	2150 vs 1290
Geekbench 4 - Multi-Core	1151 vs 754
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	0.574 vs 0.344
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	26.509 vs 23.046
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.136 vs 0.086
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	4.189 vs 2.496

Compare benchmarks

CPU 1: Intel Core 2 Duo E8500
CPU 2: Intel Core 2 Quad Q9400

PassMark - Single thread mark

CPU 1

CPU 2

1323

1139

PassMark - CPU mark

CPU 1

CPU 2

1290

2150

Geekbench 4 - Single Core

CPU 1

CPU 2

439

376

Geekbench 4 - Multi-Core

CPU 1

CPU 2

754

1151

CompuBench 1.5 Desktop - Face Detection (mPixels/s)

CPU 1

CPU 2

0.344

0.574

CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)

CPU 1

CPU 2

23.046

26.509

CompuBench 1.5 Desktop - T-Rex (Frames/s)

CPU 1

CPU 2

0.086

0.136

CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)

CPU 1

CPU 2

2.496

4.189

Name	Intel Core 2 Duo E8500	Intel Core 2 Quad Q9400
PassMark - Single thread mark	1323	1139
PassMark - CPU mark	1290	2150
Geekbench 4 - Single Core	439	376
Geekbench 4 - Multi-Core	754	1151
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	0.344	0.574
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	23.046	26.509
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.086	0.136
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	2.496	4.189
3DMark Fire Strike - Physics Score		0
CompuBench 1.5 Desktop - Video Composition (Frames/s)		0.094

Compare specifications (specs)

	Intel Core 2 Duo E8500	Intel Core 2 Quad Q9400
Essentials
Architecture codename	Wolfdale	Yorkfield
Launch date	August 2008	August 2008
Place in performance rating	2947	3130
Price now	$39.99	$33.98
Processor Number	E8500	Q9400
Series	Legacy Intel® Core™ Processors	Legacy Intel® Core™ Processors
Status	Discontinued	Discontinued
Value for money (0-100)	16.84	28.99
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	3.16 GHz	2.66 GHz
Bus Speed	1333 MHz FSB	1333 MHz FSB
Die size	107 mm2	164 mm2
L1 cache	64 KB	256 KB
L2 cache	6144 KB	6144 KB
Manufacturing process technology	45 nm	45 nm
Maximum case temperature (TCase)	72 °C	71 °C
Maximum core temperature	72.4°C	71.4°C
Maximum frequency	3.33 GHz	2.67 GHz
Number of cores	2	4
Transistor count	410 million	456 million
VID voltage range	0.8500V-1.3625V	0.8500V-1.3625V
Memory
Supported memory types	DDR1, DDR2, DDR3	DDR1, DDR2, DDR3
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Package Size	37.5mm x 37.5mm	37.5mm x 37.5mm
Sockets supported	LGA775	LGA775
Thermal Design Power (TDP)	65 Watt	95 Watt
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
FSB parity
Idle States
Intel 64
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Thermal Monitoring
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)