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Differences What are the advantages of each

Front view of Intel Core i7 4558U

Reasons to consider the
Intel Core i7 4558U

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CPUBoss is not aware of any important advantages of the Core i7 4558U vs the Core i5 4288U.

Front view of Intel Core i5 4288U

Reasons to consider the
Intel Core i5 4288U

Report a correction

CPUBoss is not aware of any important advantages of the Core i5 4288U vs the Core i7 4558U.

Benchmarks Real world tests of Core i7 4558U vs i5 4288U

CompuBench 1.5 (Bitcoin mining) Data courtesy CompuBench

Core i7 4558U
28.31 mHash/s
Core i5 4288U
28.17 mHash/s

CompuBench 1.5 (Face detection)

Core i7 4558U
18.52 mPixels/s
Core i5 4288U
16.9 mPixels/s

CompuBench 1.5 (T-Rex) Data courtesy CompuBench

Core i7 4558U
-1 fps
Core i5 4288U
1.1 fps

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i7 4558U
4,100,000 MB/s
Core i5 4288U
3,900,000 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i7 4558U  vs
i5 4288U 
Clock speed 2.8 GHz 2.6 GHz
Turbo clock speed 3.3 GHz 3.1 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
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 28W 28W
Annual home energy cost 6.75 $/year 6.75 $/year
Performance per watt 38.9 pt/W 37.99 pt/W
Typical power consumption 22.75W 22.75W

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 i7 4558U  vs
i5 4288U 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 1 MB 1 MB
L2 cache per core 0.5 MB/core 0.5 MB/core
L3 cache 4 MB 3 MB
L3 cache per core 2 MB/core 1.5 MB/core
Manufacture process 22 nm 22 nm
Max CPUs 1 1
Operating temperature Unknown - 100°C Unknown - 100°C

overclocking

Overclocked clock speed 2.8 GHz 3.09 GHz
Overclocked clock speed (Water) 2.8 GHz 2.6 GHz
Overclocked clock speed (Air) 2.8 GHz 3.09 GHz

integrated graphics

GPU GPU GPU
Label Intel® Iris™ Graphics 5100 Intel® Iris™ Graphics 5100
Number of displays supported 3 3
GPU clock speed 200 MHz 200 MHz
Turbo clock speed 1,200 MHz 1,200 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3-1333
DDR3
Channels Dual Channel Dual Channel
Supports ECC No No
Maximum bandwidth 25,600 MB/s 25,600 MB/s
Maximum memory size 16,384 MB 16,384 MB
Intel Core i7 4558U
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Intel Core i5 4288U
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Comments

Showing 2 comments.
We' are not talking about i5 4258U (which btw. is an excellent processor too). It's i5 428-eight-8! And yes, it's faster, and better choice!
Is this really true? That the i7 4558U is slower than the i5 4258U? I find that quite remarkable..
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