Intel Core 2 Duo E6550 vs Intel Pentium III 1400

Comparative analysis of Intel Core 2 Duo E6550 and Intel Pentium III 1400 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 - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s).

Intel Core 2 Duo E6550

Intel Pentium III 1400

Differences

Reasons to consider the Intel Core 2 Duo E6550

CPU is newer: launch date 5 year(s) 7 month(s) later
1 more cores, run more applications at once: 2 vs 1
Around 66% higher clock speed: 2.33 GHz vs 1.4 GHz
Around 4% higher maximum core temperature: 72°C vs 69°C
A newer manufacturing process allows for a more powerful, yet cooler running processor: 65 nm vs 130 nm
8x more L1 cache, more data can be stored in the L1 cache for quick access later
16x more L2 cache, more data can be stored in the L2 cache for quick access later
3.3x better performance in PassMark - Single thread mark: 908 vs 272
4.6x better performance in PassMark - CPU mark: 896 vs 193

Specifications (specs)
Launch date	July 2007 vs December 2001
Number of cores	2 vs 1
Maximum frequency	2.33 GHz vs 1.4 GHz
Maximum core temperature	72°C vs 69°C
Manufacturing process technology	65 nm vs 130 nm
L1 cache	64 KB vs 8 KB
L2 cache	4096 KB vs 256 KB
Benchmarks
PassMark - Single thread mark	908 vs 272
PassMark - CPU mark	896 vs 193

Reasons to consider the Intel Pentium III 1400

2.1x lower typical power consumption: 31.2 Watt vs 65 Watt

Thermal Design Power (TDP)	31.2 Watt vs 65 Watt

Compare benchmarks

CPU 1: Intel Core 2 Duo E6550
CPU 2: Intel Pentium III 1400

PassMark - Single thread mark

CPU 1

CPU 2

908

272

PassMark - CPU mark

CPU 1

CPU 2

896

193

Name	Intel Core 2 Duo E6550	Intel Pentium III 1400
PassMark - Single thread mark	908	272
PassMark - CPU mark	896	193
Geekbench 4 - Single Core	303
Geekbench 4 - Multi-Core	527
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	0.261
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	18.666
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.077
CompuBench 1.5 Desktop - Video Composition (Frames/s)	0.371
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	1.88

Compare specifications (specs)

	Intel Core 2 Duo E6550	Intel Pentium III 1400
Essentials
Architecture codename	Conroe	Tualatin
Launch date	July 2007	December 2001
Place in performance rating	3206	3256
Price now	$14.95
Processor Number	E6550
Series	Legacy Intel® Core™ Processors	Legacy Intel® Pentium® Processor
Status	Discontinued	Discontinued
Value for money (0-100)	29.56
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	2.33 GHz	1.40 GHz
Bus Speed	1333 MHz FSB	133 MHz FSB
Die size	143 mm2	80 mm2
L1 cache	64 KB	8 KB
L2 cache	4096 KB	256 KB
Manufacturing process technology	65 nm	130 nm
Maximum core temperature	72°C	69°C
Maximum frequency	2.33 GHz	1.4 GHz
Number of cores	2	1
Transistor count	291 million	44 million
VID voltage range	0.8500V-1.5V	1.5V
Maximum case temperature (TCase)		69 °C
Memory
Supported memory types	DDR1, DDR2, DDR3
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Package Size	37.5mm x 37.5mm
Sockets supported	PLGA775	PPGA370
Thermal Design Power (TDP)	65 Watt	31.2 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)