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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel Atom x5-Z8550 @ 1.44GHz vs Intel Core i5-2557M @ 1.70GHz

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

×Intel Atom x5-Z8550 @ 1.44GHz×Intel Core i5-2557M @ 1.70GHz+ ADD
PriceSearch OnlineSearch Online
Socket TypeUTFCBGA1380BGA1023
CPU ClassLaptop, Mobile/EmbeddedLaptop
Clockspeed1.4 GHz1.7 GHz
Turbo SpeedUp to 2.4 GHzUp to 2.7 GHz
# of Physical Cores4 (Threads: 4)2 (Threads: 4)
Max TDP4W17W
Yearly Running Cost$0.73$3.10
First Seen on ChartQ2 2016Q2 2011
# of Samples66116
Single Thread Rating6881072
CPU Mark11711768

CPU Mark Rating
As of 19th of May 2022 - Higher results represent better performance
Intel Atom x5-Z8550 @ 1.44GHz
1,171
Intel Core i5-2557M @ 1.70GHz
1,768
CPU Single Thread Rating
As of 19th of May 2022 - Higher results represent better performance
Intel Atom x5-Z8550 @ 1.44GHz
688
Intel Core i5-2557M @ 1.70GHz
1,072

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 Atom x5-Z8550 @ 1.44GHzIntel Core i5-2557M @ 1.70GHz
Max TDP4W17W
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.