Athlon 64 X2 5400+ vs Mobile Sempron SI-40

Primary details

Comparing Mobile Sempron SI-40 and Athlon 64 X2 5400+ processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	2810
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Desktop processor
Series	AMD Mobile Sempron	no data
Power efficiency	no data	0.60
Architecture codename	Sable (2008−2009)	Windsor (2006−2007)
Release date	4 July 2008 (16 years ago)	December 2006 (17 years ago)

Detailed specifications

Mobile Sempron SI-40 and Athlon 64 X2 5400+ 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)	2 (Dual-core)
Threads	1	2
Boost clock speed	2 GHz	2.8 GHz
Bus rate	1800 MHz	no data
L1 cache	no data	256 KB
L2 cache	512 KB	512 KB
L3 cache	no data	0 KB
Chip lithography	65 nm	90 nm
Die size	no data	220 mm2
Maximum core temperature	100 °C	no data
Number of transistors	no data	154 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Mobile Sempron SI-40 and Athlon 64 X2 5400+ 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	no data	1
Socket	S1g2	AM2
Power consumption (TDP)	25 Watt	89 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Mobile Sempron SI-40 and Athlon 64 X2 5400+. You'll probably need this information if you require some particular technology.

Instruction set extensions

65 nm, 1.075 - 1.125V

no data

Pros & cons summary

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Physical cores	1	2
Threads	1	2
Chip lithography	65 nm	90 nm
Power consumption (TDP)	25 Watt	89 Watt

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Should you still have questions on choice between Mobile Sempron SI-40 and Athlon 64 X2 5400+, ask them in Comments section, and we shall answer.

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