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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel Core i7-840QM @ 1.87GHz vs Intel Core i7-640M @ 2.80GHz

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 i7-640M @ 2.80GHz+ ADD
Price$289.971$186.69
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Socket TypePGA988ABGA1288
CPU ClassLaptopLaptop
Clockspeed1.9 GHz3.5 GHz
Turbo SpeedUp to 3.2 GHzUp to 3.5 GHz
# of Physical Cores4 (Threads: 8)2 (Threads: 4)
Max TDP45W35W
Yearly Running Cost$8.21$6.39
First Seen on ChartQ2 2010Q4 2010
# of Samples210606
Cross-Platform Rating59764426
Single Thread Rating9741435
CPU Mark18512091
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 31st of May 2020 - Higher results represent better performance
Intel Core i7-840QM @ 1.87GHz
 1,851
Intel Core i7-640M @ 2.80GHz
 2,091
PassMark Software © 2008-2020
CPU Value (CPU Mark / $Price)
As of 31st of May 2020 - Higher results represent better value
Intel Core i7-840QM @ 1.87GHz
 6.38
Intel Core i7-640M @ 2.80GHz
 11.20
PassMark Software © 2008-2020
CPU Single Thread Rating
As of 31st of May 2020 - Higher results represent better performance
Intel Core i7-840QM @ 1.87GHz
 974
Intel Core i7-640M @ 2.80GHz
 1,435
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 i7-640M @ 2.80GHz
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.