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AMD Athlon II Neo K125 vs Sempron SI-42

The AMD Athlon II Neo K125 is newer than AMD Sempron SI-42 also around 22% faster in multi-threaded (CPU Mark) testing but the CPUs have comparable single-thread rating. However, AMD Athlon II Neo K125 uses substantially less power. All the CPUs in this comparison belong in the Laptop CPU Class.The values below were tabulated from a combined 163 benchmarks submitted from our PerformanceTest software and results and are updated daily to include new submissions.

  • The first section will show basic information for each CPU selected.
  • The additional graphs shows the CPU Mark and Single Thread values of each CPU selected.
  • An accompany graph, if price data is available, will shows the value for money, in terms of the CPU Mark/Thread Rating per dollar.
  • The last section will show approximate yearly running costs for the CPUs.

×AMD Athlon II Neo K125×AMD Sempron SI-42+ ADD
Price Search Online Search Online
Socket TypeS1S1
CPU ClassLaptopLaptop
Clockspeed1.7 GHz2.1 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores1 (Threads: 1)1 (Threads: 1)
CacheL1: 128KB, L2: 1.0MB, L1: 128KB, L2: 0.5MB,
TDP12W25W
Yearly Running Cost$2.19$4.56
Other
First Seen on ChartQ2 2010Q1 2009
# of Samples37126
CPU Value0.08.2
Single Thread Rating(% diff. to max in group)6163(-3.3%)6373(0.0%)
CPU Mark(% diff. to max in group)315(0.0%)245(-22.5%)
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 21st of November 2024 - Higher results represent better performance
AMD Athlon II Neo K125
315
AMD Sempron SI-42
245
PassMark Software © 2008-2024
CPU Value (CPU Mark / $Price)
As of 21st of November 2024 - Higher results represent better value
AMD Athlon II Neo K125
NA
AMD Sempron SI-42
8.2
PassMark Software © 2008-2024
CPU Single Thread Rating
As of 21st of November 2024 - Higher results represent better performance
AMD Athlon II Neo K125
616
AMD Sempron SI-42
637
PassMark Software © 2008-2024
Estimated Energy Usage Cost
Estimated Energy Adjustable Values
Average hours of use per day Average CPU Utilization (0-100%)1 Power cost, $ per kWh2
8
25
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 Athlon II Neo K125 AMD Sempron SI-42
Max TDP12W25W
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.