Intel Core 2 Quad Q8400 vs Intel Core 2 Duo E6320

Comparative analysis of Intel Core 2 Quad Q8400 and Intel Core 2 Duo E6320 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 - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), CompuBench 1.5 Desktop - T-Rex (Frames/s).

Intel Core 2 Quad Q8400

Intel Core 2 Duo E6320

Differences

Reasons to consider the Intel Core 2 Quad Q8400

CPU is newer: launch date 2 year(s) 0 month(s) later
2 more cores, run more applications at once: 4 vs 2
Around 44% higher clock speed: 2.67 GHz vs 1.86 GHz
Around 19% higher maximum core temperature: 71.4°C vs 60.1°C
A newer manufacturing process allows for a more powerful, yet cooler running processor: 45 nm vs 65 nm
4x more L1 cache, more data can be stored in the L1 cache for quick access later
Around 61% better performance in PassMark - Single thread mark: 1144 vs 712
2.9x better performance in PassMark - CPU mark: 2068 vs 717
Around 39% better performance in Geekbench 4 - Single Core: 362 vs 261
2.5x better performance in Geekbench 4 - Multi-Core: 1139 vs 451

Specifications (specs)
Launch date	April 2009 vs April 2007
Number of cores	4 vs 2
Maximum frequency	2.67 GHz vs 1.86 GHz
Maximum core temperature	71.4°C vs 60.1°C
Manufacturing process technology	45 nm vs 65 nm
L1 cache	256 KB vs 64 KB
Benchmarks
PassMark - Single thread mark	1144 vs 712
PassMark - CPU mark	2068 vs 717
Geekbench 4 - Single Core	362 vs 261
Geekbench 4 - Multi-Core	1139 vs 451

Reasons to consider the Intel Core 2 Duo E6320

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 Q8400
CPU 2: Intel Core 2 Duo E6320

PassMark - Single thread mark

CPU 1

CPU 2

1144

712

PassMark - CPU mark

CPU 1

CPU 2

2068

717

Geekbench 4 - Single Core

CPU 1

CPU 2

362

261

Geekbench 4 - Multi-Core

CPU 1

CPU 2

1139

451

Name	Intel Core 2 Quad Q8400	Intel Core 2 Duo E6320
PassMark - Single thread mark	1144	712
PassMark - CPU mark	2068	717
Geekbench 4 - Single Core	362	261
Geekbench 4 - Multi-Core	1139	451
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	0.609
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	20.494
CompuBench 1.5 Desktop - Video Composition (Frames/s)	1.4
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	4.93
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.171

Compare specifications (specs)

	Intel Core 2 Quad Q8400	Intel Core 2 Duo E6320
Essentials
Architecture codename	Yorkfield	Conroe
Launch date	April 2009	April 2007
Place in performance rating	3005	2991
Price now	$99.50	$49.99
Processor Number	Q8400	E6320
Series	Legacy Intel® Core™ Processors	Legacy Intel® Core™ Processors
Status	Discontinued	Discontinued
Value for money (0-100)	9.38	6.97
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	2.66 GHz	1.86 GHz
Bus Speed	1333 MHz FSB	1066 MHz FSB
Die size	164 mm2	143 mm2
L1 cache	256 KB	64 KB
L2 cache	4096 KB	4096 KB
Manufacturing process technology	45 nm	65 nm
Maximum case temperature (TCase)	71 °C
Maximum core temperature	71.4°C	60.1°C
Maximum frequency	2.67 GHz	1.86 GHz
Number of cores	4	2
Transistor count	456 million	291 million
VID voltage range	0.8500V-1.3625V	0.8500V-1.5V
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	PLGA775
Thermal Design Power (TDP)	95 Watt	65 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)