Intel Core 2 Quad Q9400 vs Intel Core 2 Quad Q6700

Comparative analysis of Intel Core 2 Quad Q9400 and Intel Core 2 Quad Q6700 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, 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), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s).

Intel Core 2 Quad Q9400

Intel Core 2 Quad Q6700

Differences

Reasons to consider the Intel Core 2 Quad Q9400

CPU is newer: launch date 1 year(s) 4 month(s) later
Around 15% higher maximum core temperature: 71.4°C vs 62.2°C
A newer manufacturing process allows for a more powerful, yet cooler running processor: 45 nm vs 65 nm
Around 11% lower typical power consumption: 95 Watt vs 105 Watt
Around 6% better performance in PassMark - Single thread mark: 1139 vs 1074
Around 3% better performance in PassMark - CPU mark: 2150 vs 2096
Around 7% better performance in Geekbench 4 - Single Core: 376 vs 353
Around 3% better performance in Geekbench 4 - Multi-Core: 1151 vs 1114
Around 8% better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 26.509 vs 24.478

Specifications (specs)
Launch date	August 2008 vs April 2007
Maximum core temperature	71.4°C vs 62.2°C
Manufacturing process technology	45 nm vs 65 nm
Thermal Design Power (TDP)	95 Watt vs 105 Watt
Benchmarks
PassMark - Single thread mark	1139 vs 1074
PassMark - CPU mark	2150 vs 2096
Geekbench 4 - Single Core	376 vs 353
Geekbench 4 - Multi-Core	1151 vs 1114
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	26.509 vs 24.478

Reasons to consider the Intel Core 2 Quad Q6700

Around 33% more L2 cache; more data can be stored in the L2 cache for quick access later
Around 9% better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 0.148 vs 0.136
8.8x better performance in CompuBench 1.5 Desktop - Video Composition (Frames/s): 0.829 vs 0.094
Around 1% better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 4.217 vs 4.189

Specifications (specs)
L2 cache	8192 KB vs 6144 KB
Benchmarks
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	0.576 vs 0.574
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.148 vs 0.136
CompuBench 1.5 Desktop - Video Composition (Frames/s)	0.829 vs 0.094
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	4.217 vs 4.189

Compare benchmarks

CPU 1: Intel Core 2 Quad Q9400
CPU 2: Intel Core 2 Quad Q6700

PassMark - Single thread mark

CPU 1

CPU 2

1139

1074

PassMark - CPU mark

CPU 1

CPU 2

2150

2096

Geekbench 4 - Single Core

CPU 1

CPU 2

376

353

Geekbench 4 - Multi-Core

CPU 1

CPU 2

1151

1114

CompuBench 1.5 Desktop - Face Detection (mPixels/s)

CPU 1

CPU 2

0.574

0.576

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

CPU 1

CPU 2

26.509

24.478

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

CPU 1

CPU 2

0.136

0.148

CompuBench 1.5 Desktop - Video Composition (Frames/s)

CPU 1

CPU 2

0.094

0.829

CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)

CPU 1

CPU 2

4.189

4.217

Name	Intel Core 2 Quad Q9400	Intel Core 2 Quad Q6700
PassMark - Single thread mark	1139	1074
PassMark - CPU mark	2150	2096
Geekbench 4 - Single Core	376	353
Geekbench 4 - Multi-Core	1151	1114
3DMark Fire Strike - Physics Score	0
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	0.574	0.576
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	26.509	24.478
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.136	0.148
CompuBench 1.5 Desktop - Video Composition (Frames/s)	0.094	0.829
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	4.189	4.217

Compare specifications (specs)

	Intel Core 2 Quad Q9400	Intel Core 2 Quad Q6700
Essentials
Architecture codename	Yorkfield	Kentsfield
Launch date	August 2008	April 2007
Place in performance rating	3130	3062
Price now	$33.98	$44.99
Processor Number	Q9400	Q6700
Series	Legacy Intel® Core™ Processors	Legacy Intel® Core™ Processors
Status	Discontinued	Discontinued
Value for money (0-100)	28.99	21.53
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	2.66 GHz	2.66 GHz
Bus Speed	1333 MHz FSB	1066 MHz FSB
Die size	164 mm2	286 mm2
L1 cache	256 KB	256 KB
L2 cache	6144 KB	8192 KB
Manufacturing process technology	45 nm	65 nm
Maximum case temperature (TCase)	71 °C	62 °C
Maximum core temperature	71.4°C	62.2°C
Maximum frequency	2.67 GHz	2.67 GHz
Number of cores	4	4
Transistor count	456 million	582 million
VID voltage range	0.8500V-1.3625V	0.8500V-1.500V
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)	95 Watt	105 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)