CPUBoss Review Our evaluation of 4300U vs 2520M

Performance

Benchmark performance using all cores

PassMark, GeekBench (32-bit) and GeekBench (64-bit)

Single-core Performance

Individual core benchmark performance

PassMark (Single Core)

Power Consumption

How much power does the processor require?

TDP

Features

How does CPUBoss rank the features of each product?

Features and specifications that differ between products

No winner declared

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Differences What are the advantages of each

Front view of Intel Core i5 4300U

Reasons to consider the
Intel Core i5 4300U

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Much newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More number of displays supported 3 vs 2 1 more number of displays supported
Significantly lower typical power consumption 12.19W vs 28.44W 2.3x lower typical power consumption
Better performance per watt 30.29 pt/W vs 12.94 pt/W More than 2.2x better performance per watt
Significantly lower annual home energy cost 3.61 $/year vs 8.43 $/year 2.3x lower annual home energy cost
Front view of Intel Core i5 2520M

Reasons to consider the
Intel Core i5 2520M

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Higher clock speed 2.5 GHz vs 1.9 GHz More than 30% higher clock speed
Much higher GPU clock speed 650 MHz vs 200 MHz 3.2x higher GPU clock speed
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
Higher turbo clock speed 3.2 GHz vs 2.9 GHz More than 10% higher turbo clock speed
Better turbo clock speed 1,300 MHz vs 1,100 MHz Around 20% better turbo clock speed
Significantly more l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
Better performance per dollar 3.48 pt/$ vs 1.62 pt/$ Around 2.2x better performance per dollar
Better overclocked clock speed (Air) 3.04 GHz vs 2.68 GHz Around 15% better overclocked clock speed (Air)
Better overclocked clock speed (Water) 2.5 GHz vs 1.9 GHz More than 30% better overclocked clock speed (Water)

Benchmarks Real world tests of Core i5 4300U vs 2520M

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench (64-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy PassMark

PassMark (Single Core) Data courtesy PassMark

Specifications Full list of technical specs

summary

Core i5 4300U  vs
2520M 
Clock speed 1.9 GHz 2.5 GHz
Turbo clock speed 2.9 GHz 3.2 GHz
Cores Dual core Dual core
Socket type
BGA 1168
rPGA 988B
Is unlocked No No

features

Has a NX bit Yes Yes
Supports trusted computing Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
EM64T
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 15W 35W
Annual home energy cost 3.61 $/year 8.43 $/year
Performance per watt 30.29 pt/W 12.94 pt/W
Typical power consumption 12.19W 28.44W

bus

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

details

Core i5 4300U  vs
2520M 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 0.5 MB 1 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
L3 cache 3 MB 3 MB
L3 cache per core 1.5 MB/core 1.5 MB/core
Manufacture process 22 nm 32 nm
Max CPUs 1 1
Clock multiplier 19 25

overclocking

Overclocked clock speed 2.68 GHz 3.04 GHz
Overclocked clock speed (Water) 1.9 GHz 2.5 GHz
Overclocked clock speed (Air) 2.68 GHz 3.04 GHz

integrated graphics

GPU GPU GPU
Label HD 4400 HD Graphics 3000
Number of displays supported 3 2
GPU clock speed 200 MHz 650 MHz
Turbo clock speed 1,100 MHz 1,300 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3L-1600
DDR3-1333
DDR3-1066
DDR3L-1333
LPDDR3-1333
DDR3
LPDDR3-1600
Channels Dual Channel Dual Channel
Supports ECC No No
Maximum bandwidth 25,600 MB/s 21,333.32 MB/s
Maximum memory size 16,384 MB 16,384 MB
Intel Core i5 4300U
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Intel Core i5 2520M
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