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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

AMD Sempron SI-40 vs Mobile AMD Sempron 3400+

The values for the CPUs below are determined from thousands of PerformanceTest benchmark results and are updated daily.


×AMD Sempron SI-40×Mobile AMD Sempron 3400++ ADD
Price$121Search Online
Socket TypeS1Socket S1 (S1g1)
CPU ClassLaptopLaptop
Clockspeed2.0 GHz2.0 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores1 (Threads: 1)1 (Threads: 1)
Max TDP25W25W
Yearly Running Cost$4.56$4.56
First Seen on ChartQ1 2009Q1 2009
# of Samples3318
Single Thread Rating(% diff. to max in group)6313(0.0%)4893(-22.4%)
CPU Mark(% diff. to max in group)288(0.0%)269(-6.5%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.
3 - Single thread rating may be higher than the overall rating, thread performance is just one component of the CPU Mark.

CPU Mark Rating
As of 30th of June 2022 - Higher results represent better performance
AMD Sempron SI-40
 288
Mobile AMD Sempron 3400+
 269
PassMark Software © 2008-2022
CPU Value (CPU Mark / $Price)
As of 30th of June 2022 - Higher results represent better value
AMD Sempron SI-40
 24.02
Mobile AMD Sempron 3400+
 NA
PassMark Software © 2008-2022
CPU Single Thread Rating
As of 30th of June 2022 - Higher results represent better performance
AMD Sempron SI-40
 631
Mobile AMD Sempron 3400+
 489
PassMark Software © 2008-2022

Estimated Energy Usage Cost
Estimated Energy Adjustable Values
Average hours of use per dayAverage CPU Utilization (0-100%)1Power cost, $ per kWh2
1Average user usage is typically low and can vary from task to task. An estimate load 25% is nominal.
2Typical power costs vary around the world. Check your last power bill for details. Values of $0.15 to $0.45 per kWh are typical.
AMD Sempron SI-40Mobile AMD Sempron 3400+
Max TDP25W25W
Power consumption per day (kWh)NANA
Running cost per dayNANA
Power consumption per year (kWh)NANA
Running cost per yearNANA
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.