Pentium III 1400S vs Core 2 Duo T5500

Primary details

Comparing Core 2 Duo T5500 and Pentium III 1400S 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	Laptop	Desktop processor
Series	Intel Core 2 Duo	no data
Architecture codename	Merom (2006−2008)	Tualatin (2000−2002)
Release date	1 February 2007 (17 years ago)	January 2002 (22 years ago)

Detailed specifications

Core 2 Duo T5500 and Pentium III 1400S 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	1.66 GHz	no data
Boost clock speed	1.66 GHz	1.4 GHz
Bus rate	667 MHz	no data
L1 cache	64 KB	8 KB
L2 cache	2 MB	512 KB
L3 cache	0 KB	0 KB
Chip lithography	65 nm	130 nm
Die size	143 mm2	80 mm2
Maximum core temperature	100 °C	no data
Maximum case temperature (TCase)	no data	69 °C
Number of transistors	291 Million	44 million
64 bit support	+	-
Windows 11 compatibility	-	-
VID voltage range	1.0375V-1.3V	no data

Compatibility

Information on Core 2 Duo T5500 and Pentium III 1400S 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	PPGA478, PBGA479	370
Power consumption (TDP)	34 Watt	32 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo T5500 and Pentium III 1400S. 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
Demand Based Switching	-	no data
FSB parity	-	no data

Security technologies

Core 2 Duo T5500 and Pentium III 1400S 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 T5500 and Pentium III 1400S are enumerated here.

VT-x

-

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)	34 Watt	32 Watt

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Should you still have questions on choice between Core 2 Duo T5500 and Pentium III 1400S, ask them in Comments section, and we shall answer.

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