CPUBoss Review Our evaluation of 6600U vs 6300U among all CPUs

Performance

Benchmark performance using all cores
Core i7 6600U
5.6
Core i5 6300U
5.4
Core i7 5600U
6.4
PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance
Core i7 6600U
7.2
Core i5 6300U
6.9
Core i7 5600U
8.5
PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics
Core i7 6600U
n.d.
Core i5 6300U
n.d.
Core i7 5600U
5.7
Sky Diver and Cloud Gate

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing
Core i7 6600U
7.4
Core i5 6300U
7.4
Core i7 5600U
7.0
CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?
Core i7 6600U
6.5
Core i5 6300U
6.5
Core i7 5600U
6.5
Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?
Core i7 6600U
n.d.
Core i5 6300U
n.d.
Core i7 5600U
n.d.
Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

No winner declared

Too close to call

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VS

Intel Core i7 6600U

Front view of Intel Core i7 6600U
Front view of Intel Core i5 6300U

Intel Core i5 6300U

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Differences What are the advantages of each

Front view of Intel Core i7 6600U

Reasons to consider the
Intel Core i7 6600U

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Much better 3DMark06 CPU score 50.8 vs 47.2 Around 10% better 3DMark06 CPU score
Higher turbo clock speed 3.4 GHz vs 3 GHz Around 15% higher turbo clock speed
Much better geekbench 3 Multi-Core score 7,104 vs 2,936 Around 2.5x better geekbench 3 Multi-Core score
Higher clock speed 2.6 GHz vs 2.4 GHz Around 10% higher clock speed
Better CompuBench 1.5 bitcoin mining score 27.11 mHash/s vs 25.91 mHash/s Around 5% better CompuBench 1.5 bitcoin mining score
More l3 cache per core 2 MB/core vs 1.5 MB/core Around 35% more l3 cache per core
Better turbo clock speed 1,050 MHz vs 1,000 MHz 5% better turbo clock speed
Better performance per watt 13.12 pt/W vs 11.38 pt/W More than 15% better performance per watt
Better overclocked clock speed (Air) 3.4 GHz vs 3 GHz Around 15% better overclocked clock speed (Air)
Better PassMark (Single core) score 1,817 vs 1,639 More than 10% better PassMark (Single core) score
Better overclocked clock speed (Water) 3.4 GHz vs 3 GHz Around 15% better overclocked clock speed (Water)
Front view of Intel Core i5 6300U

Reasons to consider the
Intel Core i5 6300U

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Better performance per dollar 0.61 pt/$ vs 0.5 pt/$ More than 20% better performance per dollar

Benchmarks Real world tests of Core i7 6600U vs i5 6300U

CompuBench 1.5 (Bitcoin mining) Data courtesy CompuBench

Core i7 6600U
27.11 mHash/s
Core i5 6300U
25.91 mHash/s

CompuBench 1.5 (Face detection)

Core i7 6600U
21.61 mPixels/s
Core i5 6300U
22.16 mPixels/s

CompuBench 1.5 (T-Rex) Data courtesy CompuBench

Core i7 6600U
1.49 fps
Core i5 6300U
1.51 fps

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core i7 6600U
7,104
Core i5 6300U
2,936

GeekBench 3 (Single core) Data courtesy Primate Labs

Core i7 6600U
3,336.5
Core i5 6300U
2,954.5

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i7 6600U
2,565 MB/s
Core i5 6300U
3,960 MB/s

PassMark Data courtesy Passmark

Core i7 6600U
4,814
Core i5 6300U
4,374

PassMark (Single Core)

Core i7 6600U
1,817
Core i5 6300U
1,639

Specifications Full list of technical specs

summary

 Core i7 6600U  vs
i5 6300U 
Clock speed 2.6 GHz 2.4 GHz
Turbo clock speed 3.4 GHz 3 GHz
Cores Dual core Dual core
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
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption
TDP 15W 15W
Annual home energy cost 3.61 $/year 3.61 $/year
Annual commercial energy cost 13.14 $/year 13.14 $/year
Performance per watt 13.12 pt/W 11.38 pt/W
Typical power consumption 12.19W 12.19W

bus
Architecture FSB FSB
Number of links 1 1
Transfer rate 4,000 MT/s 4,000 MT/s

details

 Core i7 6600U  vs
i5 6300U 
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 3 MB
L3 cache per core 2 MB/core 1.5 MB/core
Manufacture process 14 nm 14 nm
Max CPUs 1 1

overclocking
Overclocked clock speed 3.4 GHz 3 GHz
Overclocked clock speed (Water) 3.4 GHz 3 GHz
Overclocked clock speed (Air) 3.4 GHz 3 GHz

integrated graphics
GPU GPU GPU
Label Intel® HD Graphics 520 Intel® HD Graphics 520
Number of displays supported 3 3
GPU clock speed 300 MHz 300 MHz
Turbo clock speed 1,050 MHz 1,000 MHz

memory controller
Memory controller Built-in Built-in
Memory type
DDR3L-1600
Channels Dual Channel Dual Channel
Supports ECC No No
Maximum bandwidth 25,600 MB/s 25,600 MB/s
Maximum memory size 32,768 MB 32,768 MB
Intel Core i7 6600U
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Intel Core i5 6300U
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Comments

Showing 2 comments.
sata600 (05:09 AM, January 24, 2018)
for some reason, the i7 vs the i5 in the thinkpad yoga x1 1st gen, performance is nearly impossible to distinguish and the i7 model's fan system is always kicking into high gear... the i7u processors barely do better than generation 3 Ivy bridge mobile processor models of the M series...
Guest (11:42 AM, November 29, 2016)
In performance per dollar, the i5 is way better. Would like to see this sort of analysis as well.
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