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Intel Celeron G3900E vs i7-2640M

The Intel Celeron G3900E @ 2.40GHz is newer than Intel Core i7-2640M @ 2.80GHz and is around -17% slower in multi-threaded (CPU Mark) testing. However the CPUs have comparable single-thread rating. Both CPUs operates at simliar power levels (TDP). All the CPUs in this comparison belong in the Laptop CPU Class. The values below were tabulated from a combined 1701 benchmarks submitted from our PerformanceTest software and results and are updated daily to include new submissions.

  • The first section will show basic information for each CPU selected.
  • The additional graphs shows the CPU Mark and Single Thread values of each CPU selected.
  • An accompany graph, if price data is available, will shows the value for money, in terms of the CPU Mark/Thread Rating per dollar.
  • The last section will show approximate yearly running costs for the CPUs.

×Intel Celeron G3900E @ 2.40GHz×Intel Core i7-2640M @ 2.80GHz+ ADD
Price Search Online $82.02 - BUY
Socket TypeFCBGA1440BGA1023
CPU ClassLaptopLaptop
Clockspeed2.4 GHz2.8 GHz
Turbo SpeedNot SupportedUp to 3.5 GHz
# of Physical Cores2 (Threads: 2)2 (Threads: 4)
CacheL1: 256KB, L2: 1.0MB, L3: 2MBL1: 128KB, L2: 0.5MB, L3: 4MB
TDP35W35W
Yearly Running Cost$6.39$6.39
OtherIntel HD Graphics 510
First Seen on ChartQ2 2017Q4 2011
# of Samples11700
CPU Value19.029.8
Single Thread Rating(% diff. to max in group)1499(0.0%)1483(-1.0%)
CPU Mark(% diff. to max in group)2034(-16.8%)2445(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 11th of December 2025 - Higher results represent better performance
Intel Celeron G3900E @ 2.40GHz
2,034
Intel Core i7-2640M @ 2.80GHz
2,445
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 11th of December 2025 - Higher results represent better value
Intel Celeron G3900E @ 2.40GHz
19.0
Intel Core i7-2640M @ 2.80GHz
29.8
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 11th of December 2025 - Higher results represent better performance
Intel Celeron G3900E @ 2.40GHz
1,499
Intel Core i7-2640M @ 2.80GHz
1,483
PassMark Software © 2008-2025
Estimated Energy Usage Cost
Estimated Energy Adjustable Values
Average hours of use per day Average CPU Utilization (0-100%)1 Power cost, $ per kWh2
8
25
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 Celeron G3900E @ 2.40GHz Intel Core i7-2640M @ 2.80GHz
Max TDP35W35W
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.