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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel Pentium 6405U @ 2.40GHz 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 Pentium 6405U @ 2.40GHz×Intel Core i7-640M @ 2.80GHz+ ADD
Price$1611$189.95
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Socket TypeFCBGA1528BGA1288
CPU ClassLaptopLaptop
Clockspeed2.4 GHz2.8 GHz
Turbo SpeedNot SupportedUp to 3.5 GHz
# of Physical Cores2 (Threads: 4)2 (Threads: 4)
Max TDP15W35W
Yearly Running Cost$2.74$6.39
First Seen on ChartQ2 2020Q4 2010
# of Samples24640
Cross-Platform Rating49194398
Single Thread Rating14201387
CPU Mark23602041
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 24th of September 2021 - Higher results represent better performance
Intel Pentium 6405U @ 2.40GHz
2,360
Intel Core i7-640M @ 2.80GHz
2,041
CPU Value (CPU Mark / $Price)
As of 24th of September 2021 - Higher results represent better value
Intel Pentium 6405U @ 2.40GHz
14.66
Intel Core i7-640M @ 2.80GHz
10.74
CPU Single Thread Rating
As of 24th of September 2021 - Higher results represent better performance
Intel Pentium 6405U @ 2.40GHz
1,420
Intel Core i7-640M @ 2.80GHz
1,387

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 Pentium 6405U @ 2.40GHzIntel Core i7-640M @ 2.80GHz
Max TDP15W35W
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.