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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel Core i7-3940XM @ 3.00GHz vs Intel Core i5-8350U @ 1.70GHz

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


×Intel Core i7-3940XM @ 3.00GHz×Intel Core i5-8350U @ 1.70GHz+ ADD
Price$344.041$2971
Socket TyperPGA988BFC-BGA1356
CPU ClassLaptopLaptop
Clockspeed3.0 GHz1.7 GHz
Turbo SpeedUp to 3.9 GHzUp to 3.6 GHz
# of Physical Cores4 (Threads: 8)4 (Threads: 8)
Max TDP55W15W
Yearly Running Cost$10.04$2.74
First Seen on ChartQ4 2012Q4 2017
# of Samples139619
Cross-Platform Rating1287411713
Single Thread Rating19322066
CPU Mark57976374
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 3rd of March 2021 - Higher results represent better performance
Intel Core i7-3940XM @ 3.00GHz
 5,797
Intel Core i5-8350U @ 1.70GHz
 6,374
PassMark Software © 2008-2021
CPU Value (CPU Mark / $Price)
As of 3rd of March 2021 - Higher results represent better value
Intel Core i7-3940XM @ 3.00GHz
 16.85
Intel Core i5-8350U @ 1.70GHz
 21.46
PassMark Software © 2008-2021
CPU Single Thread Rating
As of 3rd of March 2021 - Higher results represent better performance
Intel Core i7-3940XM @ 3.00GHz
 1,932
Intel Core i5-8350U @ 1.70GHz
 2,066
PassMark Software © 2008-2021

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 i7-3940XM @ 3.00GHzIntel Core i5-8350U @ 1.70GHz
Max TDP55W15W
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.