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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel Core i7-840QM @ 1.87GHz vs Intel Core i5-520M @ 2.40GHz

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


×Intel Core i7-840QM @ 1.87GHz×Intel Core i5-520M @ 2.40GHz+ ADD
Price$289.971$69.99
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Socket TypePGA988ABGA1288
CPU ClassLaptopLaptop
Clockspeed1.9 GHz2.9 GHz
Turbo SpeedUp to 3.2 GHzUp to 2.9 GHz
# of Physical Cores4 (Threads: 8)2 (Threads: 4)
Max TDP45W35W
Yearly Running Cost$8.21$6.39
First Seen on ChartQ2 2010Q1 2010
# of Samples2132696
Cross-Platform Rating62213568
Single Thread Rating10781083
CPU Mark18811682
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 6th of August 2020 - Higher results represent better performance
Intel Core i7-840QM @ 1.87GHz
 1,881
Intel Core i5-520M @ 2.40GHz
 1,682
PassMark Software © 2008-2020
CPU Value (CPU Mark / $Price)
As of 6th of August 2020 - Higher results represent better value
Intel Core i7-840QM @ 1.87GHz
 6.49
Intel Core i5-520M @ 2.40GHz
 24.03
PassMark Software © 2008-2020
CPU Single Thread Rating
As of 6th of August 2020 - Higher results represent better performance
Intel Core i7-840QM @ 1.87GHz
 1,078
Intel Core i5-520M @ 2.40GHz
 1,083
PassMark Software © 2008-2020

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 Core i7-840QM @ 1.87GHzIntel Core i5-520M @ 2.40GHz
Max TDP45W35W
Power consumption per day (kWh)abcabc
Running cost per dayabcabc
Power consumption per year (kWh)abcabc
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Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.