CPUBoss Review Our evaluation of 4650U vs 5Y71 among laptop CPUs (up to 15W)

Performance

Benchmark performance using all cores

PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

Sky Diver and Cloud Gate

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

9

CPUBoss Score

Combination of all six facets

Winner
Intel Core i7 4650U 

CPUBoss recommends the Intel Core i7 4650U  based on its features.

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VS

Differences What are the advantages of each

Front view of Intel Core i7 4650U

Reasons to consider the
Intel Core i7 4650U

Report a correction

CPUBoss is not aware of any important advantages of the Core i7 4650U vs the Core M 5Y71.

Front view of Intel Core M 5Y71

Reasons to consider the
Intel Core M 5Y71

Report a correction

CPUBoss is not aware of any important advantages of the Core M 5Y71 vs the Core i7 4650U.

Benchmarks Real world tests of Core i7 4650U vs M 5Y71

CompuBench 1.5 (Bitcoin mining) Data courtesy CompuBench

Core i7 4650U
19.28 mHash/s
Core M 5Y71
21.9 mHash/s

CompuBench 1.5 (Face detection)

Core i7 4650U
12.76 mPixels/s
Core M 5Y71
12.41 mPixels/s

CompuBench 1.5 (T-Rex) Data courtesy CompuBench

Core i7 4650U
1.22 fps
Core M 5Y71
0.72 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 4650U
4,100,000 MB/s
Core M 5Y71
3,630,000 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i7 4650U  vs
M 5Y71 
Clock speed 1.7 GHz 1.2 GHz
Turbo clock speed 3.3 GHz 2.9 GHz
Cores Dual core Dual core

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
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 15W 4.5W
Annual home energy cost 3.61 $/year 1.08 $/year
Performance per watt 68.64 pt/W 210.93 pt/W
Typical power consumption 12.19W 3.66W

bus

Architecture DMI 2.0 FSB
Number of links 1 1

details

Core i7 4650U  vs
M 5Y71 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 0.5 MB 0.5 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 4 MB 4 MB
L3 cache per core 2 MB/core 2 MB/core
Manufacture process 22 nm 14 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 3.17 GHz 2.46 GHz
Overclocked clock speed (Water) 1.7 GHz 1.2 GHz
Overclocked clock speed (Air) 3.17 GHz 2.46 GHz

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics 5000 Intel® HD Graphics 5300
Number of displays supported 3 3
GPU clock speed 200 MHz 300 MHz
Turbo clock speed 1,100 MHz 900 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3-1333
DDR3-1066
DDR2-1066
DDR3
DDR3-800
DDR2-800
DDR2-667
DDR2
DDR
Channels Dual Channel Dual Channel
Supports ECC No No
Maximum bandwidth 25,600 MB/s 12,800 MB/s
Maximum memory size 16,384 MB 16,384 MB
Intel Core i7 4650U
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Intel Core M 5Y71
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