CPUBoss Review Our evaluation of 750 vs 2100 among desktop CPUs

Performance

Benchmark performance using all cores
Core i5 750
6.4
Core i3 2100
5.2
Core i5 2400
7.8
PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance
Core i5 750
5.2
Core i3 2100
6.2
Core i5 2400
8.3
PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics
Core i5 750
0.0
Core i3 2100
n.d.
Core i5 2400
n.d.
Fire Strike

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing
Core i5 750
0.0
Core i3 2100
5.6
Core i5 2400
n.d.
CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?
Core i5 750
5.0
Core i3 2100
6.8
Core i5 2400
6.7
Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?
Core i5 750
n.d.
Core i3 2100
6.2
Core i5 2400
6.3
Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more
7

CPUBoss Score

Combination of all six facets
Core i5 750
4.1
Core i3 2100
7.0
Core i5 2400
8.5

Winner
Intel Core i5 750 

CPUBoss recommends the Intel Core i5 750  based on its .

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Intel Core i5 750

Front view of Intel Core i5 750
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 750

Reasons to consider the
Intel Core i5 750

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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
Much better overclocked clock speed (Air) 4.13 GHz vs 3.23 GHz Around 30% better overclocked clock speed (Air)
Significantly higher Maximum operating temperature 72.7 °C vs 69.1 °C More than 5% higher Maximum operating temperature
Much better overclocked clock speed (Water) 4.09 GHz vs 3.23 GHz More than 25% better overclocked clock speed (Water)
Front view of Intel Core i3 2100

Reasons to consider the
Intel Core i3 2100

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Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Significantly higher clock speed 3.1 GHz vs 2.66 GHz More than 15% higher clock speed
Much newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better performance per watt 1.41 pt/W vs 0.89 pt/W Around 60% better performance per watt
Supports more RAM 32,768 MB vs 16,384 MB Supports 2x more RAM
Significantly lower typical power consumption 98.28W vs 122.45W Around 20% lower typical power consumption
Much lower annual commercial energy cost 93.47 $/year vs 122.73 $/year Around 25% lower annual commercial energy cost
Significantly lower annual home energy cost 37.88 $/year vs 42.81 $/year More than 10% lower annual home energy cost
Newer Jan, 2011 vs Jul, 2009 Release date over 1 years later

Benchmarks Real world tests of Core i5 750 vs i3 2100

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core i5 750
6,025
Core i3 2100
4,786

GeekBench 3 (Single core) Data courtesy Primate Labs

Core i5 750
2,013
Core i3 2100
2,258

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i5 750
127,600 MB/s
Core i3 2100
153,100 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Core i5 750
5,656
Core i3 2100
4,738

GeekBench (64-bit) Data courtesy Primate Labs

Core i5 750
6,332
Core i3 2100
5,042

GeekBench

Core i5 750
7,570
Core i3 2100
7,901

PassMark Data courtesy Passmark

Core i5 750
3,711
Core i3 2100
3,664

PassMark (Single Core)

Core i5 750
1,138
Core i3 2100
1,583

Reviews Word on the street

Core i5 750  vs i3 2100 
9.0
read review
6.0
read review
9.1
read review
9.3
read review

Overall
9.3 Out of 10
8.0 Out of 10

Specifications Full list of technical specs

summary

 Core i5 750  vs
i3 2100 
Clock speed 2.66 GHz 3.1 GHz
Cores Quad core Dual core
Socket type
LGA 1156
LGA 1155
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
SSE
SSE4.1
SSE4.2
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption
TDP 95W 65W
Annual home energy cost 42.81 $/year 37.88 $/year
Annual commercial energy cost 122.73 $/year 93.47 $/year
Performance per watt 0.89 pt/W 1.41 pt/W
Idle power consumption 69.5W 73W
Peak power consumption 140.1W 106.7W
Typical power consumption 122.45W 98.28W

bus
Architecture DMI DMI
Number of links 1 1
Transfer rate 2,500 MT/s 5,000 MT/s

details

 Core i5 750  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 8 MB 3 MB
L3 cache per core 2 MB/core 1.5 MB/core
Manufacture process 45 nm 32 nm
Max CPUs 1 1
Clock multiplier 20 31
Operating temperature Unknown - 72.7°C Unknown - 69.1°C

overclocking
Overclock popularity 159 101
Overclock review score 4.5 4.5
Overclocked clock speed 4.13 GHz 3.23 GHz
Overclocked clock speed (Water) 4.09 GHz 3.23 GHz
Overclocked clock speed (Air) 4.13 GHz 3.23 GHz

integrated graphics
GPU None GPU
Label N/A Intel® HD Graphics 2000
Number of displays supported N/A 2
GPU clock speed N/A 850 MHz
Turbo clock speed N/A 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 16,384 MB 32,768 MB
Intel Core i5 750
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Intel Core i3 2100
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