Pentium III 1200 vs Core 2 Duo E4400

Primary details

Comparing Core 2 Duo E4400 and Pentium III 1200 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Desktop processor
Architecture codename	Allendale (2006−2009)	Tualatin (2000−2002)
Release date	July 2007 (17 years ago)	July 2001 (23 years ago)

Detailed specifications

Core 2 Duo E4400 and Pentium III 1200 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	2 (Dual-core)	1 (Single-Core)
Threads	2	1
Base clock speed	2 GHz	no data
Boost clock speed	2 GHz	1.2 GHz
Bus rate	800 MHz	no data
L1 cache	64 KB	8 KB
L2 cache	2 MB	256 KB
L3 cache	0 KB	0 KB
Chip lithography	65 nm	130 nm
Die size	111 mm2	80 mm2
Maximum core temperature	L2=61 °C, M0=73 °C	no data
Maximum case temperature (TCase)	no data	69 °C
Number of transistors	167 million	44 million
64 bit support	+	-
Windows 11 compatibility	-	-
VID voltage range	0.85V-1.5V	no data

Compatibility

Information on Core 2 Duo E4400 and Pentium III 1200 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	1	1
Socket	LGA775	370
Power consumption (TDP)	65 Watt	30 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo E4400 and Pentium III 1200. You'll probably need this information if you require some particular technology.

Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
Idle States	+	no data
Thermal Monitoring	+	-
Demand Based Switching	-	no data
FSB parity	-	no data

Security technologies

Core 2 Duo E4400 and Pentium III 1200 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	no data
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Duo E4400 and Pentium III 1200 are enumerated here.

VT-x

-

no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo E4400 and Pentium III 1200. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR1, DDR2, DDR3

no data

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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Pros & cons summary

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Physical cores	2	1
Threads	2	1
Chip lithography	65 nm	130 nm
Power consumption (TDP)	65 Watt	30 Watt

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Should you still have questions on choice between Core 2 Duo E4400 and Pentium III 1200, ask them in Comments section, and we shall answer.

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