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Differences What are the advantages of each

Front view of Intel Core i7 6920HQ

Reasons to consider the
Intel Core i7 6920HQ

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Significantly newer manufacturing process 14 nm vs 22 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much lower typical power consumption 36.56W vs 71.5W Around 50% lower typical power consumption
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Better CompuBench 1.5 ocean surface simulation score 256.6 fps vs 233.07 fps More than 10% better CompuBench 1.5 ocean surface simulation score
Much lower annual home energy cost 10.84 $/year vs 21.2 $/year Around 50% lower annual home energy cost
Much lower annual commercial energy cost 39.42 $/year vs 77.09 $/year Around 50% lower annual commercial energy cost
Newer Jul, 2015 vs Apr, 2014 Release date over 1 years later
Front view of Intel Core i7 4790K

Reasons to consider the
Intel Core i7 4790K

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Much better 3DMark06 CPU score 79 vs 71.7 More than 10% better 3DMark06 CPU score
Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Significantly higher clock speed 4 GHz vs 2.9 GHz Around 40% higher clock speed
Much better performance per dollar 3.69 pt/$ vs 0.41 pt/$ More than 9x better performance per dollar
Higher turbo clock speed 4.4 GHz vs 3.8 GHz More than 15% higher turbo clock speed
Significantly better turbo clock speed 1,250 MHz vs 1,050 MHz Around 20% better turbo clock speed
Much better performance per watt 11.42 pt/W vs 5.16 pt/W Around 2.2x better performance per watt
Better PassMark (Single core) score 2,530 vs 2,045 Around 25% better PassMark (Single core) score
Better overclocked clock speed (Air) 4.63 GHz vs 3.89 GHz Around 20% better overclocked clock speed (Air)
Better PassMark score 11,194 vs 9,697 More than 15% better PassMark score
Much better overclocked clock speed (Water) 4.8 GHz vs 2.9 GHz More than 65% better overclocked clock speed (Water)

Benchmarks Real world tests of Core i7 6920HQ vs 4790K

CompuBench 1.5 (Bitcoin mining) Data courtesy CompuBench

Core i7 6920HQ
31 mHash/s
Core i7 4790K
16.1 mHash/s

CompuBench 1.5 (Face detection)

Core i7 6920HQ
25.7 mPixels/s
Core i7 4790K
18.33 mPixels/s

CompuBench 1.5 (T-Rex) Data courtesy CompuBench

Core i7 4790K
1.79 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 6920HQ
4,830 MB/s
Core i7 4790K
5,140,000 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i7 6920HQ  vs
4790K 
Clock speed 2.9 GHz 4 GHz
Turbo clock speed 3.8 GHz 4.4 GHz
Cores Quad core Quad core
Is unlocked No Yes

features

Has a NX bit Yes Yes
Supports trusted computing Yes No
Has virtualization support Yes Yes
Instruction set extensions
SSE2
F16C
MMX
SSE4
AVX
SSE3
EM64T
SSE
SSE4.1
FMA3
SSE4.2
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 45W 88W
Annual home energy cost 10.84 $/year 21.2 $/year
Annual commercial energy cost 39.42 $/year 77.09 $/year
Performance per watt 5.16 pt/W 11.42 pt/W
Typical power consumption 36.56W 71.5W

bus

Architecture FSB DMI 2.0
Number of links 1 0
Transfer rate 8,000 MT/s 5,000 MT/s

details

Core i7 6920HQ  vs
4790K 
Architecture x86-64 x86-64
Threads 8 8
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 8 MB 8 MB
L3 cache per core 2 MB/core 2 MB/core
Manufacture process 14 nm 22 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 3.89 GHz 4.63 GHz
Overclocked clock speed (Water) 2.9 GHz 4.8 GHz
Overclocked clock speed (Air) 3.89 GHz 4.63 GHz

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics 530 Intel® HD Graphics 4600
Number of displays supported 3 3
GPU clock speed 350 MHz 350 MHz
Turbo clock speed 1,050 MHz 1,250 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3L-1600
DDR3-1600
DDR3-1333
Channels Dual Channel Dual Channel
Supports ECC No No
Maximum bandwidth 25,600 MB/s 25,600 MB/s
Maximum memory size 65,536 MB 32,768 MB
Intel Core i7 6920HQ
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Intel Core i7 4790K
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