Intel Core 2 Quad Q9400s vs Intel Pentium E5400

Comparative analysis of Intel Core 2 Quad Q9400s and Intel Pentium E5400 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).

Intel Core 2 Quad Q9400s

Intel Pentium E5400

Differences

Reasons to consider the Intel Core 2 Quad Q9400s

2 more cores, run more applications at once: 4 vs 2
Around 3% higher maximum core temperature: 76.3°C vs 74.1°C
2x more L1 cache, more data can be stored in the L1 cache for quick access later
3x more L2 cache, more data can be stored in the L2 cache for quick access later

Number of cores	4 vs 2
Maximum core temperature	76.3°C vs 74.1°C
L1 cache	256 KB vs 64 KB (per core)
L2 cache	6144 KB vs 2048 KB (shared)

Reasons to consider the Intel Pentium E5400

Around 1% higher clock speed: 2.7 GHz vs 2.67 GHz

Maximum frequency	2.7 GHz vs 2.67 GHz

Compare benchmarks

CPU 1: Intel Core 2 Quad Q9400s
CPU 2: Intel Pentium E5400

Name	Intel Core 2 Quad Q9400s	Intel Pentium E5400
PassMark - Single thread mark		1079
PassMark - CPU mark		975
Geekbench 4 - Single Core		318
Geekbench 4 - Multi-Core		543
CompuBench 1.5 Desktop - Face Detection (mPixels/s)		0.302
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)		13.111
CompuBench 1.5 Desktop - T-Rex (Frames/s)		0.076
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)		2.098

Compare specifications (specs)

	Intel Core 2 Quad Q9400s	Intel Pentium E5400
Essentials
Architecture codename	Yorkfield	Wolfdale
Launch date	January 2009	January 2009
Place in performance rating	not rated	3116
Processor Number	Q9400S	E5400
Series	Legacy Intel® Core™ Processors	Legacy Intel® Pentium® Processor
Status	Discontinued	Discontinued
Vertical segment	Desktop	Desktop
Launch price (MSRP)		$55
Price now		$19.99
Value for money (0-100)		23.54
Performance
64 bit support
Base frequency	2.66 GHz	2.70 GHz
Bus Speed	1333 MHz FSB	800 MHz FSB
Die size	164 mm2	82 mm2
L1 cache	256 KB	64 KB (per core)
L2 cache	6144 KB	2048 KB (shared)
Manufacturing process technology	45 nm	45 nm
Maximum case temperature (TCase)	76 °C
Maximum core temperature	76.3°C	74.1°C
Maximum frequency	2.67 GHz	2.7 GHz
Number of cores	4	2
Transistor count	456 million	228 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	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)