AMD Mobile Sempron SI-40: specs and benchmarks

AMD Mobile Sempron SI-40


AMD started AMD Mobile Sempron SI-40 sales 4 July 2008. This is Sable architecture notebook processor primarily aimed at office systems. It has 1 core and 1 thread, and is based on 65 nm manufacturing technology, with a maximum frequency of 2000 MHz and a locked multiplier.

Compatibility-wise, this is S1g2 processor with a TDP of 25 Watt.

It provides poor benchmark performance at 2.30 percent of a leader's which is AMD EPYC 7763.

General info

Of Mobile Sempron SI-40 processor market type (desktop or notebook), architecture, sales start time and pricing.

Place in our rating
Value for money (0-100)
Market segment
AMD Mobile Sempron
Architecture codename
Launch date
4 July 2008 (12 years ago)
Price now

Technical specs

Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.

Physical cores
1 (Single-Core)
Boost clock speed
2 GHz
Bus support
1800 MHz
L2 cache
512 KB
Chip lithography
65 nm
of 5 (Apple M1)
Maximum core temperature
100 °C
of 110 (Atom x7-E3950)
64 bit support


Information on Mobile Sempron SI-40 compatibility with other computer components and devices: 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.

Thermal design power (TDP)
25 Watt

Technologies and extensions

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

Instruction set extensions
65 nm1.075 - 1.125V

Benchmark performance

Single-core and multi-core benchmark results of Mobile Sempron SI-40. Overall benchmark performance is measured in points in 0-100 range, higher is better.

Overall score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.


3DMark06 CPU

3DMark06 is a discontinued DirectX 9 benchmark suite from Futuremark. Its CPU part contains two scenarios, one dedicated to artificial intelligence pathfinding, another to game physics using PhysX package.


Game benchmarks

Let's see how good Mobile Sempron SI-40 is for a gaming PC, compared with system requirements of some popular titles. Remember that sometimes official hardware requirements may reflect real performance inaccurately.

This processor matches 84% minimum and 75% recommended requirements of all games known to us.


Intel equivalent

We believe that the nearest equivalent to Mobile Sempron SI-40 from Intel is Core i5-2415M, which is nearly equal in speed and higher by 2 positions in our rating.

Here are some closest Intel rivals to Mobile Sempron SI-40:

Similar processors

Here is our recommendation of several processors that are more or less close in performance to the one reviewed.

User rating

Here is the rating given to the reviewed processor by our users. Let others know your opinion by rating it yourself.

Advices and comments

Here you can ask a question about Mobile Sempron SI-40, agree or disagree with our judgements, or report an error or mismatch.