Intel Celeron E3400 vs Intel Core 2 Duo E6400

Comparative analysis of Intel Celeron E3400 and Intel Core 2 Duo E6400 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.

Intel Celeron E3400

Intel Core 2 Duo E6400

Differences

Reasons to consider the Intel Celeron E3400

CPU is newer: launch date 3 year(s) 6 month(s) later
Around 22% higher clock speed: 2.6 GHz vs 2.13 GHz
Around 21% higher maximum core temperature: 74.1°C vs 61.4°C
A newer manufacturing process allows for a more powerful, yet cooler running processor: 45 nm vs 65 nm
2x more L1 cache, more data can be stored in the L1 cache for quick access later
Around 24% better performance in PassMark - Single thread mark: 1015 vs 821
Around 14% better performance in PassMark - CPU mark: 883 vs 774
Around 23% better performance in Geekbench 4 - Single Core: 301 vs 244
Around 23% better performance in Geekbench 4 - Multi-Core: 510 vs 413

Specifications (specs)
Launch date	January 2010 vs July 2006
Maximum frequency	2.6 GHz vs 2.13 GHz
Maximum core temperature	74.1°C vs 61.4°C
Manufacturing process technology	45 nm vs 65 nm
L1 cache	64 KB (per core) vs 64 KB
Benchmarks
PassMark - Single thread mark	1015 vs 821
PassMark - CPU mark	883 vs 774
Geekbench 4 - Single Core	301 vs 244
Geekbench 4 - Multi-Core	510 vs 413

Reasons to consider the Intel Core 2 Duo E6400

2x more L2 cache, more data can be stored in the L2 cache for quick access later

L2 cache	2048 KB vs 1024 KB (shared)

Compare benchmarks

CPU 1: Intel Celeron E3400
CPU 2: Intel Core 2 Duo E6400

PassMark - Single thread mark

CPU 1

CPU 2

1015

821

PassMark - CPU mark

CPU 1

CPU 2

883

774

Geekbench 4 - Single Core

CPU 1

CPU 2

301

244

Geekbench 4 - Multi-Core

CPU 1

CPU 2

510

413

Name	Intel Celeron E3400	Intel Core 2 Duo E6400
PassMark - Single thread mark	1015	821
PassMark - CPU mark	883	774
Geekbench 4 - Single Core	301	244
Geekbench 4 - Multi-Core	510	413

Compare specifications (specs)

	Intel Celeron E3400	Intel Core 2 Duo E6400
Essentials
Architecture codename	Wolfdale	Conroe
Launch date	January 2010	July 2006
Launch price (MSRP)	$76
Place in performance rating	2752	2924
Price now	$75.47	$19.95
Processor Number	E3400	E6400
Series	Legacy Intel® Celeron® Processor	Legacy Intel® Core™ Processors
Status	Discontinued	Discontinued
Value for money (0-100)	5.63	19.03
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	2.60 GHz	2.13 GHz
Bus Speed	800 MHz FSB	1066 MHz FSB
Die size	82 mm	111 mm2
L1 cache	64 KB (per core)	64 KB
L2 cache	1024 KB (shared)	2048 KB
Manufacturing process technology	45 nm	65 nm
Maximum core temperature	74.1°C	61.4°C
Maximum frequency	2.6 GHz	2.13 GHz
Number of cores	2	2
Transistor count	228 million	167 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
Sockets supported	LGA775	PLGA775, LGA775
Thermal Design Power (TDP)	65 Watt	65 Watt
Package Size		37.5mm x 37.5mm
Scenario Design Power (SDP)		0 W
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Intel 64
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Thermal Monitoring
FSB parity
Intel® Demand Based Switching
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)