Intel Core 2 Quad Q8400 vs Intel Core 2 Quad Q8400s

Comparative analysis of Intel Core 2 Quad Q8400 and Intel Core 2 Quad Q8400s 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 Quad Q8400s

Differences

Reasons to consider the Intel Core 2 Quad Q8400s

Around 7% higher maximum core temperature: 76.3°C vs 71.4°C
Around 46% lower typical power consumption: 65 Watt vs 95 Watt

Maximum core temperature	76.3°C vs 71.4°C
Thermal Design Power (TDP)	65 Watt vs 95 Watt

Compare benchmarks

CPU 1: Intel Core 2 Quad Q8400
CPU 2: Intel Core 2 Quad Q8400s

Name	Intel Core 2 Quad Q8400	Intel Core 2 Quad Q8400s
PassMark - Single thread mark	1141
PassMark - CPU mark	2068
Geekbench 4 - Single Core	362
Geekbench 4 - Multi-Core	1139
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 Quad Q8400s
Essentials
Architecture codename	Yorkfield	Yorkfield
Launch date	April 2009	April 2009
Place in performance rating	3019	not rated
Price now	$99.50
Processor Number	Q8400	Q8400S
Series	Legacy Intel® Core™ Processors	Legacy Intel® Core™ Processors
Status	Discontinued	Discontinued
Value for money (0-100)	9.38
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	2.66 GHz	2.66 GHz
Bus Speed	1333 MHz FSB	1333 MHz FSB
Die size	164 mm2	164 mm2
L1 cache	256 KB	256 KB
L2 cache	4096 KB	4096 KB
Manufacturing process technology	45 nm	45 nm
Maximum case temperature (TCase)	71 °C	76 °C
Maximum core temperature	71.4°C	76.3°C
Maximum frequency	2.67 GHz	2.67 GHz
Number of cores	4	4
Transistor count	456 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)	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)