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Intel i7-640M vs Celeron N4100

The Intel Celeron N4100 @ 1.10GHz is newer than Intel Core i7-640M @ 2.80GHz and is around 18% faster in multi-threaded (CPU Mark) testing. The Intel Celeron N4100 @ 1.10GHz is around -27% slower in single-thread testing. Also, Intel Celeron N4100 @ 1.10GHz uses substantially less power. All the CPUs in this comparison belong in the Laptop CPU Class. The values below were tabulated from a combined 1245 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 Core i7-640M @ 2.80GHz×Intel Celeron N4100 @ 1.10GHz+ ADD
Price Search Online Search Online
Socket TypeBGA1288FCBGA1090
CPU ClassLaptopLaptop
Clockspeed2.8 GHz1.1 GHz
Turbo SpeedUp to 3.5 GHzUp to 2.4 GHz
# of Physical Cores2 (Threads: 4)4 (Threads: 4)
CacheL1: 128KB, L2: 0.5MB, L3: 4MBL1: 224KB, L2: 4.0MB, L3: 0MB
TDP35W6W
Yearly Running Cost$6.39$1.10
Other Intel UHD Graphics 600
First Seen on ChartQ4 2010Q2 2018
# of Samples752493
CPU Value14.723.0
Single Thread Rating(% diff. to max in group)1378(0.0%)1002(-27.3%)
CPU Mark(% diff. to max in group)2086(-15.2%)2461(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 17th of June 2025 - Higher results represent better performance
Intel Core i7-640M @ 2.80GHz
2,086
Intel Celeron N4100 @ 1.10GHz
2,461
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 17th of June 2025 - Higher results represent better value
Intel Core i7-640M @ 2.80GHz
14.7
Intel Celeron N4100 @ 1.10GHz
23.0
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 17th of June 2025 - Higher results represent better performance
Intel Core i7-640M @ 2.80GHz
1,378
Intel Celeron N4100 @ 1.10GHz
1,002
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 Core i7-640M @ 2.80GHz Intel Celeron N4100 @ 1.10GHz
Max TDP35W6W
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.