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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel Core i7-4940MX @ 3.10GHz vs Intel Core i7-3840QM @ 2.80GHz

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


×Intel Core i7-4940MX @ 3.10GHz×Intel Core i7-3840QM @ 2.80GHz+ ADD
Price$699.951$548.871
Socket TypeFPGA946,FPGA947rPGA988B
CPU ClassLaptopLaptop
Clockspeed3.1 GHz2.8 GHz
Turbo SpeedUp to 4.0 GHzUp to 3.8 GHz
# of Physical Cores4 (Threads: 8)4 (Threads: 8)
Max TDP57W45W
Yearly Running Cost$10.40$8.21
First Seen on ChartQ1 2014Q3 2012
# of Samples125707
Single Thread Rating22931959
CPU Mark70635964
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 26th of June 2022 - Higher results represent better performance
Intel Core i7-4940MX @ 3.10GHz
 7,063
Intel Core i7-3840QM @ 2.80GHz
 5,964
PassMark Software © 2008-2022
CPU Value (CPU Mark / $Price)
As of 26th of June 2022 - Higher results represent better value
Intel Core i7-4940MX @ 3.10GHz
 10.09
Intel Core i7-3840QM @ 2.80GHz
 10.87
PassMark Software © 2008-2022
CPU Single Thread Rating
As of 26th of June 2022 - Higher results represent better performance
Intel Core i7-4940MX @ 3.10GHz
 2,293
Intel Core i7-3840QM @ 2.80GHz
 1,959
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 Core i7-4940MX @ 3.10GHzIntel Core i7-3840QM @ 2.80GHz
Max TDP57W45W
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.