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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel Pentium III Mobile 866MHz vs AMD Sempron SI-42

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


×Intel Pentium III Mobile 866MHz×AMD Sempron SI-42+ ADD
PriceSearch Online$29.991
Socket TypeNA2S1
CPU ClassLaptopLaptop
Clockspeed0.9 GHz2.1 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores1 (Threads: 1)1 (Threads: 1)
Max TDPNA225W
Yearly Running CostNA$4.56
First Seen on ChartQ2 2009Q1 2009
# of Samples2122
Single Thread Rating13236503
CPU Mark99261
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 19th of May 2022 - Higher results represent better performance
Intel Pentium III Mobile 866MHz
 99
AMD Sempron SI-42
 261
PassMark Software © 2008-2022
CPU Value (CPU Mark / $Price)
As of 19th of May 2022 - Higher results represent better value
Intel Pentium III Mobile 866MHz
 NA
AMD Sempron SI-42
 8.70
PassMark Software © 2008-2022
CPU Single Thread Rating
As of 19th of May 2022 - Higher results represent better performance
Intel Pentium III Mobile 866MHz
 132
AMD Sempron SI-42
 650
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.
Intel Pentium III Mobile 866MHzAMD Sempron SI-42
Max TDPNA25W
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.