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Intel Celeron N4000 vs Celeron 3855U

The Intel Celeron N4000 @ 1.10GHz is newer than Intel Celeron 3855U @ 1.60GHz and is around 17% faster in multi-threaded (CPU Mark) testing. The Intel Celeron N4000 @ 1.10GHz is around 14% faster in single-thread testing. Also, Intel Celeron N4000 @ 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 1155 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 N4000 @ 1.10GHz×Intel Celeron 3855U @ 1.60GHz+ ADD
Price Search Online Search Online
Socket TypeFCBGA1090FCBGA1356
CPU ClassLaptopLaptop
Clockspeed1.1 GHz1.6 GHz
Turbo SpeedUp to 2.6 GHzNot Supported
# of Physical Cores2 (Threads: 2)2 (Threads: 2)
CacheL1: 112KB, L2: 4.0MB, L3: 0MBL1: 128KB, L2: 0.5MB, L3: 2MB
TDP6W15W
Yearly Running Cost$1.10$2.74
OtherIntel UHD Graphics 600
First Seen on ChartQ2 2018Q1 2016
# of Samples108372
CPU Rank40634249
CPU Value13.413.6
Single Thread Rating(% diff. to max in group)1035(0.0%)905(-12.6%)
CPU Mark(% diff. to max in group)1430(0.0%)1218(-14.8%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 13th of March 2026 - Higher results represent better performance
Intel Celeron N4000 @ 1.10GHz
1,430
Intel Celeron 3855U @ 1.60GHz
1,218
PassMark Software © 2008-2026
CPU Value (CPU Mark / $Price)
As of 13th of March 2026 - Higher results represent better value
Intel Celeron N4000 @ 1.10GHz
13.4
Intel Celeron 3855U @ 1.60GHz
13.6
PassMark Software © 2008-2026
CPU Single Thread Rating
As of 13th of March 2026 - Higher results represent better performance
Intel Celeron N4000 @ 1.10GHz
1,035
Intel Celeron 3855U @ 1.60GHz
905
PassMark Software © 2008-2026
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 N4000 @ 1.10GHz Intel Celeron 3855U @ 1.60GHz
Max TDP6W15W
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.