Mobile Sempron SI-40 vs Athlon II X4 640

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Primary details

Comparing Athlon II X4 640 and Mobile Sempron SI-40 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking2194not rated
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation2.92no data
Market segmentDesktop processorLaptop
Seriesno dataAMD Mobile Sempron
Power efficiency1.41no data
Architecture codenamePropus (2009−2011)Sable (2008−2009)
Release date11 May 2010 (14 years ago)4 July 2008 (16 years ago)
Launch price (MSRP)$80no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Athlon II X4 640 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 cores4 (Quad-Core)1 (Single-Core)
Threads41
Base clock speed3 GHzno data
Boost clock speed3 GHz2 GHz
Bus rateno data1800 MHz
L1 cache128 KB (per core)no data
L2 cache512 KB (per core)512 KB
L3 cache0 KBno data
Chip lithography45 nm65 nm
Die size169 mm2no data
Maximum core temperatureno data100 °C
Number of transistors300 millionno data
64 bit support++
Windows 11 compatibility--

Compatibility

Information on Athlon II X4 640 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 configuration1no data
SocketAM3S1g2
Power consumption (TDP)95 Watt25 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Athlon II X4 640 and Mobile Sempron SI-40. You'll probably need this information if you require some particular technology.

Instruction set extensionsno data65 nm, 1.075 - 1.125V

Memory specs

Types, maximum amount and channel quantity of RAM supported by Athlon II X4 640 and Mobile Sempron SI-40. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3no data

Peripherals

Specifications and connection of peripherals supported by Athlon II X4 640 and Mobile Sempron SI-40.

PCIe version2.0no data

Pros & cons summary


Recency 11 May 2010 4 July 2008
Physical cores 4 1
Threads 4 1
Chip lithography 45 nm 65 nm
Power consumption (TDP) 95 Watt 25 Watt

Athlon II X4 640 has an age advantage of 1 year, 300% more physical cores and 300% more threads, and a 44.4% more advanced lithography process.

Mobile Sempron SI-40, on the other hand, has 280% lower power consumption.

We couldn't decide between Athlon II X4 640 and Mobile Sempron SI-40. We've got no test results to judge.

Note that Athlon II X4 640 is a desktop processor while Mobile Sempron SI-40 is a notebook one.


Should you still have questions on choice between Athlon II X4 640 and Mobile Sempron SI-40, ask them in Comments section, and we shall answer.

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AMD Athlon II X4 640
Athlon II X4 640
AMD Mobile Sempron SI-40
Mobile Sempron SI-40

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Community ratings

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3.7 1359 votes

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Questions & comments

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