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 2.33 percent of a leader's which is AMD Ryzen Threadripper 3990X.

General info

Of Mobile Sempron SI-40 processor market type (desktop or notebook), architecture and sales start time and price.
Place in performance rating
AMD Mobile Sempron
Architecture codename
Release date
4 July 2008

Technical specs

Mobile Sempron SI-40's quantitative parameters such as cores and threads number, clocks, manufacturing process, cache size and multiplier lock state. These parameters indirectly say of Mobile Sempron SI-40's performance, but to be more precise you have to review its test results.
Number of cores
Number of threads
Maximum frequency
2 GHz
Bus support
1800 MHz
L2 cache
512 KB
of 8192 (Opteron 3380)
Manufacturing process technology
65 nm
Maximum core temperature
100 °C
of 110 (Atom x7-E3950)
64 bit support


Information on Mobile Sempron SI-40 compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one.
Power consumption (TDP)
25 Watt
of 650 (Atom Z500)

Benchmark performance

Non-gaming benchmarks performance of Mobile Sempron SI-40. Overall benchmark performance is measured in points in 0-100 range.

Overall benchmark performance


3DMark06 CPU


Game benchmarks

Let's see how good Mobile Sempron SI-40 is for gaming compared with game system requirements. Remember that sometimes official requirements may reflect real performance inaccurately.

Relative perfomance

Overall Mobile Sempron SI-40 performance compared to nearest competitors. All CPU types participate.

Intel equivalent

We believe that the nearest equivalent to Mobile Sempron SI-40 from Intel is Pentium 4405U, which is nearly equal in speed and higher by 7 positions in our rating.

User rating

Here you can see the rating of the processor by users, as well as give your rating.

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.