Intel Core 2 Quad Q9650 vs Intel Core 2 Duo E8400

Comparative analysis of Intel Core 2 Quad Q9650 and Intel Core 2 Duo E8400 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 Q9650

Intel Core 2 Duo E8400

Differences

Reasons to consider the Intel Core 2 Quad Q9650

CPU is newer: launch date 7 month(s) later
2 more cores, run more applications at once: 4 vs 2
2x more L1 cache, more data can be stored in the L1 cache for quick access later
Around 4% better performance in PassMark - Single thread mark: 1283 vs 1237
2.1x better performance in PassMark - CPU mark: 2473 vs 1206
Around 5% better performance in Geekbench 4 - Single Core: 444 vs 422
Around 90% better performance in Geekbench 4 - Multi-Core: 1400 vs 738
Around 78% better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 0.587 vs 0.33
Around 18% better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 30.945 vs 26.311
Around 64% better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 0.162 vs 0.099
Around 73% better performance in CompuBench 1.5 Desktop - Video Composition (Frames/s): 1.175 vs 0.68
Around 78% better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 4.276 vs 2.408

Specifications (specs)
Launch date	August 2008 vs January 2008
Number of cores	4 vs 2
L1 cache	64 KB (per core) vs 128 KB
Benchmarks
PassMark - Single thread mark	1283 vs 1237
PassMark - CPU mark	2473 vs 1206
Geekbench 4 - Single Core	444 vs 422
Geekbench 4 - Multi-Core	1400 vs 738
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	0.587 vs 0.33
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	30.945 vs 26.311
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.162 vs 0.099
CompuBench 1.5 Desktop - Video Composition (Frames/s)	1.175 vs 0.68
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	4.276 vs 2.408

Reasons to consider the Intel Core 2 Duo E8400

Around 1% higher maximum core temperature: 72.4°C vs 71.4°C
Around 46% lower typical power consumption: 65 Watt vs 95 Watt

Maximum core temperature	72.4°C vs 71.4°C
Thermal Design Power (TDP)	65 Watt vs 95 Watt

Compare benchmarks

CPU 1: Intel Core 2 Quad Q9650
CPU 2: Intel Core 2 Duo E8400

PassMark - Single thread mark

CPU 1

CPU 2

1283

1237

PassMark - CPU mark

CPU 1

CPU 2

2473

1206

Geekbench 4 - Single Core

CPU 1

CPU 2

444

422

Geekbench 4 - Multi-Core

CPU 1

CPU 2

1400

738

CompuBench 1.5 Desktop - Face Detection (mPixels/s)

CPU 1

CPU 2

0.587

0.33

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

CPU 1

CPU 2

30.945

26.311

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

CPU 1

CPU 2

0.162

0.099

CompuBench 1.5 Desktop - Video Composition (Frames/s)

CPU 1

CPU 2

1.175

0.68

CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)

CPU 1

CPU 2

4.276

2.408

Name	Intel Core 2 Quad Q9650	Intel Core 2 Duo E8400
PassMark - Single thread mark	1283	1237
PassMark - CPU mark	2473	1206
Geekbench 4 - Single Core	444	422
Geekbench 4 - Multi-Core	1400	738
3DMark Fire Strike - Physics Score	0	2400
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	0.587	0.33
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	30.945	26.311
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.162	0.099
CompuBench 1.5 Desktop - Video Composition (Frames/s)	1.175	0.68
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	4.276	2.408

Compare specifications (specs)

	Intel Core 2 Quad Q9650	Intel Core 2 Duo E8400
Essentials
Architecture codename	Yorkfield	Wolfdale
Launch date	August 2008	January 2008
Place in performance rating	2987	2971
Price now	$54.49	$129.95
Processor Number	Q9650	E8400
Series	Legacy Intel® Core™ Processors	Legacy Intel® Core™ Processors
Status	Discontinued	Discontinued
Value for money (0-100)	22.69	4.87
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	3.00 GHz	3.00 GHz
Bus Speed	1333 MHz FSB	1333 MHz FSB
Die size	214 mm2	107 mm2
L1 cache	64 KB (per core)	128 KB
L2 cache	6144 KB (per die)	6144 KB
Manufacturing process technology	45 nm	45 nm
Maximum core temperature	71.4°C	72.4°C
Maximum frequency	3 GHz	3 GHz
Number of cores	4	2
Transistor count	820 million	410 million
VID voltage range	0.8500V-1.3625V	0.8500V-1.3625V
Maximum case temperature (TCase)		72 °C
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	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)
Intel® Virtualization Technology for Directed I/O (VT-d)