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Intel Core i7 6700HQ

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Front view of Intel Core i7 6700HQ

Differences What are the advantages of each

Front view of Intel Core i7 6700HQ

Reasons to consider the
Intel Core i7 6700HQ

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Much newer manufacturing process 14 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More l3 cache 6 MB vs 3 MB 2x more l3 cache; more data can be stored in the l3 cache for quick access later
More number of displays supported 3 vs 2 1 more number of displays supported
Better PassMark score 8,134 vs 4,276 More than 90% better PassMark score
Newer Jul, 2015 vs Jan, 2011 Release date over 4 years later
More cores 4 vs 2 Twice as many cores; run more applications at once
More threads 8 vs 4 Twice as many threads
Better overclocked clock speed (Water) 3.5 GHz vs 2.7 GHz Around 30% better overclocked clock speed (Water)
Front view of Intel Core i5 2390T

Reasons to consider the
Intel Core i5 2390T

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Much better performance per dollar 4.17 pt/$ vs 0.62 pt/$ More than 6.8x better performance per dollar
Much better performance per watt 21.94 pt/W vs 5.19 pt/W Around 4.2x better performance per watt
Much higher GPU clock speed 650 MHz vs 350 MHz More than 85% higher GPU clock speed
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
More l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
Lower typical power consumption 28.44W vs 36.56W More than 20% lower typical power consumption
Better turbo clock speed 1,100 MHz vs 1,050 MHz Around 5% better turbo clock speed
Slightly better overclocked clock speed (Air) 3.68 GHz vs 3.51 GHz Around 5% better overclocked clock speed (Air)
Lower annual home energy cost 8.43 $/year vs 10.84 $/year More than 20% lower annual home energy cost
Lower annual commercial energy cost 30.66 $/year vs 39.42 $/year More than 20% lower annual commercial energy cost

Benchmarks Real world tests of Core i7 6700HQ vs i5 2390T

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 6700HQ
4,040 MB/s
Core i5 2390T
2,230,000 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i7 6700HQ  vs
i5 2390T 
Clock speed 2.6 GHz 2.7 GHz
Turbo clock speed 3.5 GHz 3.5 GHz
Cores Quad core Dual core
Is unlocked No No

features

Has a NX bit Yes Yes
Supports trusted computing No 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 45W 35W
Annual home energy cost 10.84 $/year 8.43 $/year
Annual commercial energy cost 39.42 $/year 30.66 $/year
Performance per watt 5.19 pt/W 21.94 pt/W
Typical power consumption 36.56W 28.44W

bus

Architecture FSB DMI
Number of links 1 1
Transfer rate 8,000 MT/s 5,000 MT/s

details

Core i7 6700HQ  vs
i5 2390T 
Architecture x86-64 x86-64
Threads 8 4
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
L3 cache 6 MB 3 MB
L3 cache per core 1.5 MB/core 1.5 MB/core
Manufacture process 14 nm 32 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 3.51 GHz 3.68 GHz
Overclocked clock speed (Water) 3.5 GHz 2.7 GHz
Overclocked clock speed (Air) 3.51 GHz 3.68 GHz

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics 530 Intel® HD Graphics 2000
Number of displays supported 3 2
GPU clock speed 350 MHz 650 MHz
Turbo clock speed 1,050 MHz 1,100 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3L-1600
DDR3-1333
DDR3-1066
DDR3
Channels Dual Channel Dual Channel
Maximum bandwidth 25,600 MB/s 21,333.32 MB/s
Maximum memory size 65,536 MB 32,768 MB
Intel Core i7 6700HQ
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Intel Core i5 2390T
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