Mobile Sempron SI-40 vs Pentium M 740

Primary details

Comparing Pentium M 740 and Mobile Sempron SI-40 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	Laptop
Series	Pentium M	AMD Mobile Sempron
Architecture codename	Dothan (2004−2005)	Sable (2008−2009)
Release date	19 January 2005 (19 years ago)	4 July 2008 (16 years ago)

Detailed specifications

Pentium M 740 and Mobile Sempron SI-40 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	1 (Single-Core)	1 (Single-Core)
Threads	1	1
Base clock speed	1.73 GHz	no data
Boost clock speed	1.73 GHz	2 GHz
Bus rate	533 MHz	1800 MHz
L1 cache	32 KB	no data
L2 cache	2 MB	512 KB
L3 cache	0 KB	no data
Chip lithography	90 nm	65 nm
Die size	87 mm2	no data
Maximum core temperature	100 °C	100 °C
Number of transistors	144 million	no data
64 bit support	-	+
Windows 11 compatibility	-	-
VID voltage range	1.26V-1.356V	no data

Compatibility

Information on Pentium M 740 and Mobile Sempron SI-40 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	no data
Socket	PPGA478, H-PBGA479	S1g2
Power consumption (TDP)	27 Watt	25 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium M 740 and Mobile Sempron SI-40. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	65 nm, 1.075 - 1.125V
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
Idle States	-	no data
Demand Based Switching	-	no data
PAE	32 Bit	no data
FSB parity	-	no data

Security technologies

Pentium M 740 and Mobile Sempron SI-40 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 Pentium M 740 and Mobile Sempron SI-40 are enumerated here.

VT-x

-

no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium M 740 and Mobile Sempron SI-40. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR2

no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

On certain motherboards (Chipset feature)

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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Recency	19 January 2005	4 July 2008
Chip lithography	90 nm	65 nm
Power consumption (TDP)	27 Watt	25 Watt

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Should you still have questions on choice between Pentium M 740 and Mobile Sempron SI-40, ask them in Comments section, and we shall answer.

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