CPUBoss Review Our evaluation of 2400 vs 2100 among desktop CPUs

Performance

Benchmark performance using all cores
Core i5 2400
7.8
Core i3 2100
5.2
Core i5 3470
7.0
PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance
Core i5 2400
8.3
Core i3 2100
6.2
Core i5 3470
9.3
PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics
Core i5 2400
n.d.
Core i3 2100
n.d.
Core i5 3470
0.6
Fire Strike

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing
Core i5 2400
n.d.
Core i3 2100
5.6
Core i5 3470
5.5
CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?
Core i5 2400
6.7
Core i3 2100
6.8
Core i5 3470
6.3
Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?
Core i5 2400
6.3
Core i3 2100
6.2
Core i5 3470
5.7
Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more
8.5

CPUBoss Score

Combination of all six facets
Core i5 2400
8.5
Core i3 2100
7.0
Core i5 3470
6.6

Winner
Intel Core i5 2400 

CPUBoss recommends the Intel Core i5 2400  based on its .

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Intel Core i5 2400

Front view of Intel Core i5 2400
Front view of Intel Core i3 2100

Intel Core i3 2100

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Differences What are the advantages of each

Front view of Intel Core i5 2400

Reasons to consider the
Intel Core i5 2400

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Much more l2 cache 1 MB vs 0.5 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
More cores 4 vs 2 Twice as many cores; run more applications at once
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Much better overclocked clock speed (Air) 3.54 GHz vs 3.23 GHz Around 10% better overclocked clock speed (Air)
Significantly higher Maximum operating temperature 72.6 °C vs 69.1 °C More than 5% higher Maximum operating temperature
Lower typical power consumption 93.6W vs 98.28W Around 5% lower typical power consumption
Much lower annual home energy cost 27.75 $/year vs 37.88 $/year More than 25% lower annual home energy cost
Better overclocked clock speed (Water) 3.51 GHz vs 3.23 GHz Around 10% better overclocked clock speed (Water)
Front view of Intel Core i3 2100

Reasons to consider the
Intel Core i3 2100

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Lower annual commercial energy cost 93.47 $/year vs 100.92 $/year More than 5% lower annual commercial energy cost

Benchmarks Real world tests of Core i5 2400 vs i3 2100

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core i5 2400
8,298
Core i3 2100
4,786

GeekBench 3 (Single core) Data courtesy Primate Labs

Core i5 2400
2,638
Core i3 2100
2,258

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i5 2400
2,260,000 MB/s
Core i3 2100
153,100 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Core i5 2400
8,258
Core i3 2100
4,738

GeekBench (64-bit) Data courtesy Primate Labs

Core i5 2400
9,093
Core i3 2100
5,042

GeekBench

Core i5 2400
10,769
Core i3 2100
7,901

PassMark Data courtesy Passmark

Core i5 2400
5,901
Core i3 2100
3,664

PassMark (Single Core)

Core i5 2400
1,742
Core i3 2100
1,583

Specifications Full list of technical specs

summary

 Core i5 2400  vs
i3 2100 
Clock speed 3.1 GHz 3.1 GHz
Cores Quad core Dual core
Socket type
LGA 1155
Is unlocked No No

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

power consumption
TDP 95W 65W
Annual home energy cost 27.75 $/year 37.88 $/year
Annual commercial energy cost 100.92 $/year 93.47 $/year
Performance per watt 8.14 pt/W 1.41 pt/W
Peak power consumption 115.2W 106.7W
Typical power consumption 93.6W 98.28W

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

details

 Core i5 2400  vs
i3 2100 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 1 MB 0.5 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 6 MB 3 MB
L3 cache per core 1.5 MB/core 1.5 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 1 1
Clock multiplier 31 31
Operating temperature Unknown - 72.6°C Unknown - 69.1°C

overclocking
Overclock popularity 63 101
Overclocked clock speed 3.54 GHz 3.23 GHz
Overclocked clock speed (Water) 3.51 GHz 3.23 GHz
PassMark (Overclocked) 3,244.5 1,518.9
Overclocked clock speed (Air) 3.54 GHz 3.23 GHz

integrated graphics
GPU GPU GPU
Label Intel® HD Graphics 2000 Intel® HD Graphics 2000
Number of displays supported 2 2
GPU clock speed 850 MHz 850 MHz
Turbo clock speed 1,100 MHz 1,100 MHz

memory controller
Memory controller Built-in Built-in
Memory type
DDR3-1333
DDR3-1066
DDR3
Channels Dual Channel Dual Channel
Maximum bandwidth 21,333.32 MB/s 21,333.32 MB/s
Maximum memory size 32,768 MB 32,768 MB
Intel Core i5 2400
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Intel Core i3 2100
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