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Differences What are the advantages of each

Front view of Intel Core i3 4000M

Reasons to consider the
Intel Core i3 4000M

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Supports dynamic frequency scaling Yes vs No Somewhat common; Allows for maximum performance when needed, while conserving power and minimizing heat production when not needed
Front view of Intel Celeron 2981U

Reasons to consider the
Intel Celeron 2981U

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CPUBoss is not aware of any important advantages of the Celeron 2981U vs the Core i3 4000M.

Benchmarks Real world tests of Core i3 4000M vs Celeron 2981U

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i3 4000M  vs
Celeron 2981U 
Clock speed 2.4 GHz 1.6 GHz
Cores Dual core Dual core
Is unlocked No No

features

Has a NX bit Yes Yes
Supports trusted computing No No
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
EM64T
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AVX 2.0
Supports dynamic frequency scaling Yes No

power consumption

TDP 37W 15W
Annual home energy cost 8.91 $/year 3.61 $/year
Performance per watt 4.45 pt/W 5.69 pt/W
Typical power consumption 30.06W 12.19W

bus

Architecture DMI 2.0 DMI 2.0
Number of links 1 1
Transfer rate 5,000 MT/s 5,000 MT/s

details

Core i3 4000M  vs
Celeron 2981U 
Architecture x86-64 x86-64
Threads 4 2
L2 cache 1 MB 0.5 MB
L2 cache per core 0.5 MB/core 0.25 MB/core
L3 cache 3 MB 2 MB
L3 cache per core 1.5 MB/core 1 MB/core
Manufacture process 22 nm 22 nm
Max CPUs 1 1
Operating temperature Unknown - 100°C Unknown - 100°C

overclocking

Overclocked clock speed 2.4 GHz 1.6 GHz
Overclocked clock speed (Water) 2.4 GHz 1.6 GHz
Overclocked clock speed (Air) 2.4 GHz 1.6 GHz

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics 4600 HD
Number of displays supported 3 3
GPU clock speed 400 MHz 200 MHz
Turbo clock speed 1,100 MHz 1,000 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3L-1600
DDR3-1600
DDR3L-1333
Channels Dual Channel Dual Channel
Supports ECC No No
Maximum bandwidth 25,600 MB/s 25,600 MB/s
Maximum memory size 32,768 MB 16,384 MB
Intel Core i3 4000M
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Intel Celeron 2981U
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