Mobile Sempron SI-42
CPU·Budget

Mobile Sempron SI-42

AMD

PassMark

332

1 September 2009 (16 years ago)
512 kB
Sable (2008−2009)

Performance Spectrum - CPU

Mobile Sempron SI-42
1 / 1
332
0.0%
brand logoAthlon XP 1700+
brand logoAthlon XP 2000+
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brand logoRyzen Threadripper PRO 7955WX
brand logoRyzen Threadripper 3990X
brand logoRyzen Threadripper 7970X

About PassMark

PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.

Overview

The Mobile Sempron SI-42 is manufactured by AMD. It was released in 1 September 2009 (16 years ago). It is based on the Sable (2008−2009) architecture. It features 1 cores and 1 threads. Max frequency: 2.1 GHz. L2 cache: 512 kB. Built on 65 nm process technology. Socket: S1g2. Thermal design power (TDP): 512 kB. Passmark benchmark score: 332 points. Launch price was $69.

Value Upgrade Path

This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. Components placed above yours deliver better value for money.

MSRP is the manufacturer's suggested retail price.
Avg price is the current average price collected from markets across the web.

Performance Per Dollar

Based on actual market prices and performance synthetic scores.

FPS Benchmarks

Predicted performance for Mobile Sempron SI-42 across popular games. Tested paired with RTX 4090 to isolate CPU performance.

Counter-Strike 2

Counter-Strike 2

1080p
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
1440p
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
4k
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
Destiny 2

Destiny 2

1080p
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
1440p
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
4k
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
Dota 2

Dota 2

1080p
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
1440p
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
4k
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
Euro Truck Simulator 2

Euro Truck Simulator 2

1080p
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
1440p
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
4k
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
Final Fantasy XIV

Final Fantasy XIV

1080p
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
1440p
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
4k
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
League of Legends

League of Legends

1080p
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
1440p
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
4k
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
Left 4 Dead 2

Left 4 Dead 2

1080p
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
1440p
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
4k
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
Naraka: Bladepoint

Naraka: Bladepoint

1080p
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
1440p
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
4k
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
Once Human

Once Human

1080p
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
1440p
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
4k
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
Path of Exile 2

Path of Exile 2

1080p
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
1440p
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
4k
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
Check FPS with Custom Builds

Technical Analysis

Detailed breakdown of Mobile Sempron SI-42 specifications and capabilities.

⚡

Processing Power

The Mobile Sempron SI-42 is a 1-core / 1-thread processor based on the Sable (2008−2009) architecture, manufactured on a 65 nm process node. It reaches a maximum boost clock of 2.1 GHz— higher boost clocks directly translate to better single-threaded performance and responsiveness in gaming. In the PassMark benchmark (a comprehensive multi-threaded test), it scores 332, placing it in the Entry Level performance tier as a Legacy generation product.

SpecificationMobile Sempron SI-42
Cores / ThreadsPhysical/logical processing units1C / 1T
Max Boost ClockPeak single-core speed under boost2.1 GHz
ArchitectureCPU microarchitecture designSable (2008−2009)
Process NodeFabrication technology — smaller = more efficient65 nm
L2 CachePer-core fast cache for frequently accessed data512 kB
L1 CacheUltra-fast per-core cache128 kB
Bus SpeedData bus frequency1800 MHz
Max TemperatureMaximum safe operating temperature (Tjmax)100 °C
64-bit SupportYes
Windows 11 CompatibleNo
PassMark ScoreOverall multi-threaded benchmark score332
🧠

Memory & Platform

The Mobile Sempron SI-42 fits into the S1g2 socket and supports PCIe 2.0.

SpecificationMobile Sempron SI-42
TypeDesktop or Laptop processorLaptop
SeriesProduct familyAMD Mobile Sempron
SocketMotherboard socket requiredS1g2
PCIe GenerationPeripheral interconnect speed — affects GPU and SSD bandwidthPCIe 2.0
🌡️

Power & Cooling

The Mobile Sempron SI-42 has a rated TDP (Thermal Design Power) of 512 kB — this indicates the amount of heat generated under sustained load and determines what cooling solution is needed.

SpecificationMobile Sempron SI-42
TDPThermal Design Power — heat output under sustained workload512 kB
Max TemperatureMaximum safe junction temperature (Tjmax)100 °C
💰

Value Analysis

Performance ranking position: #3497 out of all indexed processors.

SpecificationMobile Sempron SI-42
Launch PriceOriginal retail price at launch$69
Performance RankPosition in overall performance ranking#3497
Release DateLaunch date1 September 2009 (16 years ago)
Release Year2009
DesignerArchitecture designer (e.g. Intel, AMD)AMD

Specifications Reference

Raw spec sheet for quick lookup. The analysis cards above explain what these fields mean in practice.

3 categories

General Information

7 specs

TypeLaptop
SeriesAMD Mobile Sempron
DesignerAMD
Launch Price$69
Release Date1 September 2009 (16 years ago)
Architecture CodenameSable (2008−2009)
Performance Ranking Position3497

Technical Specifications

10 specs

Cores1
Threads1
L1 Cache128 kB
L2 Cache512 kB
Bus Speed1800 MHz
Max Frequency2.1 GHz
64-Bit Support+
Process Technology65 nm
Max Core Temperature100 °C
Windows 11 Compatible-

Compatibility

3 specs

SocketS1g2
PCIe GenerationPCIe 2.0
Power Consumption (TDP)512 kB

Our Recommendation for Mobile Sempron SI-42

Suggested pairings based on performance balance

Minimum (Avoid Bottleneck) (12)

Quadro T1000 Max-QG3D Mark: 5,000
4 GBCore: 765 MHz2019
Radeon R9 M295X Mac EditionG3D Mark: 5,000
2 GBCore: 850 MHz2014
QuadroG3D Mark: 5,000
2 GBCore: 135 MHz1999
Radeon HD 7970M CrossfireG3D Mark: 5,000
2 GBCore: 850 MHz2012
Quadro T1000 (móvel)G3D Mark: 5,000
4 GBCore: 1395 MHz2019
M1 8-Core GPUG3D Mark: 5,000
2 GBCore: 1278 MHz2020
GeForce GTX 460 OEMG3D Mark: 5,000
2 GBCore: 650 MHz2010
GeForce GTX 1630G3D Mark: 4,992
4 GBCore: 1740 MHz2022
Radeon R9 M395G3D Mark: 4,934
2 GBCore: 834 MHz2015
RTXA5000-8QG3D Mark: 4,916
2 GBCore: 1170 MHz2021
FirePro S9050G3D Mark: 4,901
4 GBCore: 900 MHz2014
CMP 30HXG3D Mark: 4,892
2 GBCore: 1530 MHz2021

Recommended (Balanced) (12)

GeForce GTX 1070 with Max-Q DesignG3D Mark: 9,842
8 GBCore: 1215 MHz2017
GeForce GTX 1060 3GBG3D Mark: 9,815
3 GBCore: 1506 MHz2016
Arc A730MG3D Mark: 9,808
12 GBCore: 1100 MHz2022
Radeon 8040SG3D Mark: 9,756
4 GBCore: 1295 MHz2025
Radeon R9 Fury + Fury XG3D Mark: 9,741
4 GB2015
Radeon RX 6550MG3D Mark: 9,705
4 GBCore: 2000 MHz2023
GeForce RTX 2060 with Max-Q DesignG3D Mark: 9,674
6 GBCore: 975 MHz2020
GeForce GTX 970G3D Mark: 9,640
4 GBCore: 1050 MHz2014
Radeon RX 6500 XTG3D Mark: 9,603
4 GBCore: 2610 MHz2022
GRID P40-2QG3D Mark: 9,581
4 GBCore: 557 MHz2015
Radeon RX Vega Ryzen 5 5600GTG3D Mark: 9,558
Shared System RAM2020
Radeon R9 FuryG3D Mark: 9,521
4 GB2015

High-End (Max Performance) (12)

Radeon Pro W6800XG3D Mark: 18,000
32 GBCore: 1800 MHz2021
Radeon 8060SG3D Mark: 17,989
noneCore: 1295 MHz2025
Quadro RTX 6000G3D Mark: 17,887
24 GBCore: 1440 MHz2018
GeForce GTX 1070 SLIG3D Mark: 17,790
8 GBCore: 1506 MHz2016
GeForce GTX 1070 SLI (móvel)G3D Mark: 17,790
8 GBCore: 1443 MHz2016
GeForce RTX 3070 Ti Laptop GPUG3D Mark: 17,621
8 GBCore: 1575 MHz2021
GeForce RTX 3070 Ti MobileG3D Mark: 17,621
8 GBCore: 915 MHz2022
Radeon Pro W5700XG3D Mark: 17,591
16 GBCore: 1243 MHz2019
Radeon Pro W6900XG3D Mark: 17,413
32 GBCore: 1825 MHz2021
GeForce RTX 4060 Laptop GPUG3D Mark: 17,400
8 GBCore: 2310 MHz2023
GeForce RTX 5060 Laptop GPUG3D Mark: 17,374
8 GBCore: 2407 MHz2025
Radeon RX 6850M XTG3D Mark: 17,350
12 GBCore: 2321 MHz2022

Compare Mobile Sempron SI-42

See how this CPU stacks up against similar alternatives

Better Alternatives (8)

Mobile Sempron SI-42
1 Cores1 ThrdMax: 2.1 GHz2009
VS
Atom N435
1 Cores2 ThrdMax: 1.33 GHz2011
Mobile Sempron SI-42
1 Cores1 ThrdMax: 2.1 GHz2009
VS
E-240
1 Cores1 ThrdMax: 1.5 GHz2011
Mobile Sempron SI-42
1 Cores1 ThrdMax: 2.1 GHz2009
VS
Athlon XP 2600+
1 Cores1 ThrdMax: 1.92 GHz2001
Mobile Sempron SI-42
1 Cores1 ThrdMax: 2.1 GHz2009
VS
Atom N455
1 Cores2 ThrdMax: 1.67 GHz2010
Mobile Sempron SI-42
1 Cores1 ThrdMax: 2.1 GHz2009
VS
Pentium M 1.40
1 Cores1 ThrdMax: 1.4 GHz2003
Mobile Sempron SI-42
1 Cores1 ThrdMax: 2.1 GHz2009
VS
Pentium 4 2.53
1 Cores1 ThrdMax: 2.53 GHz2002
Mobile Sempron SI-42
1 Cores1 ThrdMax: 2.1 GHz2009
VS
Atom D410
1 Cores2 ThrdMax: 1.67 GHz2010
Mobile Sempron SI-42
1 Cores1 ThrdMax: 2.1 GHz2009
VS
Mobile Pentium 4 2.40
1 Cores2 ThrdMax: 2.4 GHz2003

Similar or Lower Performance (8)

Mobile Sempron SI-42
1 Cores1 ThrdMax: 2.1 GHz2009
VS
Athlon 64 2000+
1 Cores1 ThrdMax: 1 GHz2008
Mobile Sempron SI-42
1 Cores1 ThrdMax: 2.1 GHz2009
VS
Pentium 4 2.40
1 Cores1 ThrdMax: 2.4 GHz2004
Mobile Sempron SI-42
1 Cores1 ThrdMax: 2.1 GHz2009
VS
Atom E680
1 Cores2 ThrdMax: 1.6 GHz2010
Mobile Sempron SI-42
1 Cores1 ThrdMax: 2.1 GHz2009
VS
Celeron 2.30
1 Cores1 ThrdMax: 2.3 GHz2003
Mobile Sempron SI-42
1 Cores1 ThrdMax: 2.1 GHz2009
VS
Atom N450
1 Cores2 ThrdMax: 1.67 GHz2009
Mobile Sempron SI-42
1 Cores1 ThrdMax: 2.1 GHz2009
VS
Mobile Sempron SI-40
1 Cores1 ThrdMax: 2 GHz2008
Mobile Sempron SI-42
1 Cores1 ThrdMax: 2.1 GHz2009
VS
Celeron 220
1 Cores1 ThrdMax: 1.2 GHz2007
Mobile Sempron SI-42
1 Cores1 ThrdMax: 2.1 GHz2009
VS
Sempron 2800+
1 Cores1 ThrdMax: 2 GHz2001
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