AMD Mobile Sempron SI-42: specs and benchmarks

Price now 17.37$
Games supported 80%
AMD Mobile Sempron SI-42
AMD Mobile Sempron SI-42
  • Interface
  • Core clock speed
  • Max video memory
  • Memory type
  • Memory clock speed
  • Maximum resolution
Year of release 2009
Performance 4.27


AMD started AMD Mobile Sempron SI-42 sales 1 September 2009. This is a Sable architecture notebook processor primarily aimed at office systems. It has 1 core and 1 thread, and is based on 65 manufacturing technology, with a maximum frequency of 2100 MHz and a locked multiplier.

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

It provides poor benchmark performance at


of a leader's which is AMD EPYC 9654.

AMD EPYC 9654 EPYC 9654

General info

Mobile Sempron SI-42 processor market type (desktop or notebook), architecture, sales start time and pricing.

Place in performance rating1252
Market segmentLaptop
SeriesAMD Mobile Sempron
Architecture codenameSable (2008−2009)
Release date1 September 2009
(13 years old)
Current price$17.37 of 25332 (Xeon Platinum 8276L)

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 cores1 (Single-Core)
Boost clock speed2.1 GHzof 6 (Core i9-13900KS)
Bus support1800 MHz
L1 cache128 KBof 1536 (EPYC Embedded 3401)
L2 cache512 KBof 12288 (Core 2 Quad Q9550)
Chip lithography65 nmof 4 (Ryzen 9 7940HS)
Maximum core temperature100 °Cof 110 (Atom x7-E3950)
64 bit support+
Windows 11 compatibility-


Information on Mobile Sempron SI-42 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 Wattof 400 (Xeon Platinum 9282)

Technologies and extensions

Technological capabilities and additional instructions supported by Mobile Sempron SI-42. You'll probably need this information if you require some particular technology.

Instruction set extensions65 nm, 1.075 - 1.125

Benchmark performance

Single-core and multi-core benchmark results of Mobile Sempron SI-42. 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.

Mobile Sempron SI-42 4.27
  • 3DMark06 CPU

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.

Benchmark coverage: 19%

Mobile Sempron SI-42 787

Is Mobile Sempron SI-42 good for gaming?

Relative perfomance

Overall Mobile Sempron SI-42 performance compared to nearest competitors among notebook CPUs.

Mobile Sempron SI-42 Intel equivalent

We believe that the nearest equivalent to Mobile Sempron SI-42 by Intel is Core i7-4712MQ, which is nearly equal in speed and higher by 2 positions in our rating.

Intel Core i7-4712MQ Core i7 4712MQ

Here are some closest Intel rivals to Mobile Sempron SI-42:

Similar processors

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

Intel Core i7-3615QM Core i7 3615QM
AMD Turion 64 X2 TL-66 Turion 64 X2 TL-66
Intel Core i7-3610QM Core i7 3610QM
Intel Core i7-3615QE Core i7 3615QE
Intel Celeron M U3400 Celeron M U3400
AMD Mobile Sempron SI-40 Mobile Sempron SI-40

Best GPUs for Mobile Sempron SI-42

People consider these graphics cards to be good for Mobile Sempron SI-42, according to our PC configuration statistics.

These are the fastest graphics cards for Mobile Sempron SI-42 in our user configuration statistics. There is a total of 51 configurations based on Mobile Sempron SI-42 in our database.

User rating

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

3.2 10 ratings

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Questions and comments

Here you can ask a question about Mobile Sempron SI-42, agree or disagree with our judgements, or report an error or mismatch.