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Differences What are the advantages of each

Front view of Intel Core i7 6700K

Reasons to consider the
Intel Core i7 6700K

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Higher clock speed 4 GHz vs 3.5 GHz Around 15% higher clock speed
Significantly newer manufacturing process 14 nm vs 22 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Higher turbo clock speed 4.2 GHz vs 3.9 GHz Around 10% higher turbo clock speed
Significantly better CompuBench 1.5 ocean surface simulation score 302.88 fps vs 244.75 fps Around 25% better CompuBench 1.5 ocean surface simulation score
Newer Jul, 2015 vs Jun, 2013 Release date over 2 years later
Better PassMark (Single core) score 2,349 vs 2,165 Around 10% better PassMark (Single core) score
Slightly better PassMark score 11,109 vs 10,016 More than 10% better PassMark score
Better overclocked clock speed (Water) 4.77 GHz vs 4.55 GHz Around 5% better overclocked clock speed (Water)
Front view of Intel Core i7 4770K

Reasons to consider the
Intel Core i7 4770K

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Much better performance per dollar 3.83 pt/$ vs 0.91 pt/$ Around 4.2x better performance per dollar
Much better performance per watt 11.31 pt/W vs 3.49 pt/W Around 3.2x better performance per watt
Better turbo clock speed 1,250 MHz vs 1,150 MHz Around 10% better turbo clock speed
Lower typical power consumption 68.25W vs 73.94W Around 10% lower typical power consumption
Higher Maximum operating temperature 72.72 °C vs 64 °C Around 15% higher Maximum operating temperature
Lower annual home energy cost 20.24 $/year vs 21.92 $/year Around 10% lower annual home energy cost
Lower annual commercial energy cost 73.58 $/year vs 79.72 $/year Around 10% lower annual commercial energy cost

Benchmarks Real world tests of Core i7 6700K vs 4770K

CompuBench 1.5 (Bitcoin mining) Data courtesy CompuBench

Core i7 6700K
35.02 mHash/s
Core i7 4770K
16.33 mHash/s

CompuBench 1.5 (Face detection)

Core i7 6700K
26.72 mPixels/s
Core i7 4770K
18.31 mPixels/s

CompuBench 1.5 (T-Rex) Data courtesy CompuBench

Core i7 6700K
1.82 fps
Core i7 4770K
1.97 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 6700K
6,010 MB/s
Core i7 4770K
4,810,000 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs


Core i7 6700K  vs
Clock speed 4 GHz 3.5 GHz
Turbo clock speed 4.2 GHz 3.9 GHz
Cores Quad core Quad core
Is unlocked Yes Yes


Has a NX bit Yes Yes
Supports trusted computing No No
Has virtualization support Yes Yes
Instruction set extensions
Supplemental SSE3
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 91W 84W
Annual home energy cost 21.92 $/year 20.24 $/year
Annual commercial energy cost 79.72 $/year 73.58 $/year
Performance per watt 3.49 pt/W 11.31 pt/W
Typical power consumption 73.94W 68.25W


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


Core i7 6700K  vs
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
Operating temperature Unknown - 64°C Unknown - 72.72°C


Overclocked clock speed 4.61 GHz 4.48 GHz
Overclocked clock speed (Water) 4.77 GHz 4.55 GHz
Overclocked clock speed (Air) 4.61 GHz 4.48 GHz

integrated graphics

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 1,150 MHz 1,250 MHz

memory controller

Memory controller Built-in Built-in
Memory type
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 6700K
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Intel Core i7 4770K
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Showing 11 comments.
CPU boss is full of shit they have no idea wtf are they talking about: You people need to use real life tests like USERBENCHMARK
In the 'real world' section the 6700 wins literally every test though. Uses less power too. I have pc's with each and the 6700 easily outperforms my haswell pc's.
Was wondering the same exact thing, what's up with the score, BOSS?
I don't have a z87x anymore I have a z97-ws quad strength graphic 4 way motherboard
The Z87 Chipset and it's CPU has 16 PCIe lanes, so you can only have up to 2 GPUs in x8 mode, unless you have a PLX-chip board. That being said, I'm sure the 970 in 4-way SLI would be horrible from a scaling point of view, and would be bottlenecked by the 4770K anyway.
Can the i7 4770k handle 4 gtx 970 sc if so please leave a comment and my power Supply 1200w 80p gold and my motherboard is a z97-ws quad strength graphic power motherboard
Compared my 4770k to a 6700k. The 4770K wins every category, scores 8.3 (vs 8.1 for the 6700), and at the end, declares the 6700 as "the winner"??? single core performance SUCKS with 6700k, AND OC'ing it only makes it hotter and unstable with a shorter life span. Keep your 6700k in your office.
CPUBoss is dumb 6700k is 4.0ghz and turbo 4.2ghz not 3.5 and 3.9 thats 6600k i5
on top of that people who buy i7 CPUs usually have a decent dedicated videocard
4770k is better for price than 6700k the only difference is the 6700k has 14nm manufacturing process and HD Graphics 530
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