CPUBoss Review Our evaluation of 4790 vs 6600K among all CPUs

Performance

Benchmark performance using all cores
Core i7 4790
7.4
Core i5 6600K
6.1
Core i7 6700K
6.6
PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance
Core i7 4790
9.4
Core i5 6600K
7.9
Core i7 6700K
8.1
PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics
Core i7 4790
7.1
Core i5 6600K
n.d.
Core i7 6700K
n.d.
Sky Diver and Cloud Gate

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing
Core i7 4790
7.5
Core i5 6600K
8.1
Core i7 6700K
8.0
CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?
Core i7 4790
5.1
Core i5 6600K
5.1
Core i7 6700K
5.1
Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?
Core i7 4790
5.6
Core i5 6600K
5.9
Core i7 6700K
5.6
Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

No winner declared

Too close to call

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Intel Core i7 4790

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 Front view of Intel Core i7 4790
Front view of Intel Core i5 6600K

Intel Core i5 6600K

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Differences What are the advantages of each

Front view of Intel Core i7 4790

Reasons to consider the
Intel Core i7 4790

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Much better performance per dollar 3.35 pt/$ vs 1.34 pt/$ More than 2.5x better performance per dollar
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Significantly better performance per watt 10.76 pt/W vs 3.04 pt/W More than 3.5x better performance per watt
More l3 cache per core 2 MB/core vs 1.5 MB/core Around 35% more l3 cache per core
Higher Maximum operating temperature 72.72 °C vs 64 °C Around 15% higher Maximum operating temperature
Better turbo clock speed 1,200 MHz vs 1,150 MHz Around 5% better turbo clock speed
More threads 8 vs 4 Twice as many threads
Better PassMark score 10,000 vs 8,009 Around 25% better PassMark score
Slightly better PassMark (Single core) score 2,285 vs 2,148 More than 5% better PassMark (Single core) score
Front view of Intel Core i5 6600K

Reasons to consider the
Intel Core i5 6600K

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Much newer manufacturing process 14 nm vs 22 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Better CompuBench 1.5 bitcoin mining score 32.43 mHash/s vs 15.62 mHash/s More than 2x better CompuBench 1.5 bitcoin mining score
Newer Jul, 2015 vs May, 2014 Release date over 1 years later
Better cinebench r10 32Bit 1-core score 8,372 vs 7,994 Around 5% better cinebench r10 32Bit 1-core score

Benchmarks Real world tests of Core i7 4790 vs i5 6600K

CompuBench 1.5 (Bitcoin mining) Data courtesy CompuBench

Core i7 4790
15.62 mHash/s
Core i5 6600K
32.43 mHash/s

CompuBench 1.5 (Face detection)

Core i7 4790
16.6 mPixels/s
Core i5 6600K
28.75 mPixels/s

CompuBench 1.5 (T-Rex) Data courtesy CompuBench

Core i7 4790
1.96 fps
Core i5 6600K
1.91 fps

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core i7 4790
13,718
Core i5 6600K
13,331

GeekBench 3 (Single core) Data courtesy Primate Labs

Core i7 4790
3,632
Core i5 6600K
4,369

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i7 4790
4,570,000 MB/s
Core i5 6600K
6,030 MB/s

PassMark Data courtesy Passmark

Core i7 4790
10,000
Core i5 6600K
8,009

PassMark (Single Core)

Core i7 4790
2,285
Core i5 6600K
2,148

Specifications Full list of technical specs

summary

 Core i7 4790  vs
i5 6600K 
Clock speed 3.6 GHz 3.5 GHz
Turbo clock speed 4 GHz 3.9 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

memory controller
Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3L-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 32,768 MB 65,536 MB

details

 Core i7 4790  vs
i5 6600K 
Architecture x86-64 x86-64
Threads 8 4
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 8 MB 6 MB
L3 cache per core 2 MB/core 1.5 MB/core
Manufacture process 22 nm 14 nm
Max CPUs 1 1
Operating temperature Unknown - 72.72°C Unknown - 64°C

integrated graphics
GPU GPU GPU
Label Intel® HD Graphics 4600 Intel® HD Graphics 530
Number of displays supported 3 3
GPU clock speed 350 MHz 350 MHz
Turbo clock speed 1,200 MHz 1,150 MHz

power consumption
TDP 84W 91W
Annual home energy cost 20.24 $/year 21.92 $/year
Annual commercial energy cost 73.58 $/year 79.72 $/year
Performance per watt 10.76 pt/W 3.04 pt/W
Typical power consumption 68.25W 73.94W

bus
Architecture DMI 2.0 FSB
Number of links 0 0
Transfer rate 5,000 MT/s 8,000 MT/s
Intel Core i7 4790
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Intel Core i5 6600K
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