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Differences What are the advantages of each

Front view of Intel Core i7 4770K

Reasons to consider the
Intel Core i7 4770K

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CPUBoss is not aware of any important advantages of the Core i7 4770K vs the Core i5 4670K.

Front view of Intel Core i5 4670K

Reasons to consider the
Intel Core i5 4670K

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CPUBoss is not aware of any important advantages of the Core i5 4670K vs the Core i7 4770K.

Benchmarks Real world tests of Core i7 4770K vs i5 4670K

CompuBench 1.5 (Bitcoin mining) Data courtesy CompuBench

Core i7 4770K
16.33 mHash/s
Core i5 4670K
16.37 mHash/s

CompuBench 1.5 (T-Rex) Data courtesy CompuBench

Core i7 4770K
1.97 fps
Core i5 4670K
1.72 fps

PCMark 8 Home 3.0 Accelerated Data courtesy FutureMark

Sky Diver Data courtesy FutureMark

Cloud Gate Data courtesy FutureMark

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 4770K
4,810,000 MB/s
Core i5 4670K
4,930,000 MB/s

Reviews Word on the street

Specifications Full list of technical specs


Core i7 4770K  vs
i5 4670K 
Clock speed 3.5 GHz 3.4 GHz
Turbo clock speed 3.9 GHz 3.8 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 84W 84W
Annual home energy cost 20.24 $/year 20.24 $/year
Annual commercial energy cost 73.58 $/year 73.58 $/year
Performance per watt 11.31 pt/W 11.19 pt/W
Typical power consumption 68.25W 68.25W


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


Core i7 4770K  vs
i5 4670K 
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 22 nm
Max CPUs 1 1
Operating temperature Unknown - 72.72°C Unknown - 72.72°C


Overclock popularity 205 57
Overclocked clock speed 4.48 GHz 4.48 GHz
Overclocked clock speed (Water) 4.55 GHz 4.55 GHz
PassMark (Overclocked) 6,694.4 5,198.5
Overclocked clock speed (Air) 4.48 GHz 4.48 GHz

integrated graphics

Label Intel® HD Graphics 4600 Intel® HD Graphics 4600
Number of displays supported 3 3
GPU clock speed 350 MHz 350 MHz
Turbo clock speed 1,250 MHz 1,200 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 32,768 MB 32,768 MB
Intel Core i7 4770K
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Intel Core i5 4670K
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Showing 13 comments.
yes, you*re right. these automated comparisons rly suck. everyone like the others here looks only at overall benchmarks. which is 100% of pc-uptime video encoding (not DEcoding), winrar-packing (not DEpacking) or other stuff normal pc-users never do. and everybody who only spends 200,-$ for a gpu does'nt know anything about gaming :)
The difference is 2mb l3 cache and hyperthreading.
The only difference is the i7 Is hyperthreaded, if you have an AMD GPU I highly advise getting the I7 Because the AMD GPUS don't have onboard Physx so it has to be done by the CPU, and it is a multithreaded task.
This is false. Benchmarks show no difference between an i5 4670k in gaming compared to an i7 4770k. The if 4670k actually outperforms it at times in major titles.
I installed the streamer and I can't get it to work (from what i can tell it needs a video capture card). I can however tell you that crysis 3 uses 65% CPU on all 4 cores @ 4.7 ghz and 99% of my gtx 680 on all high settings at 30fps on the beginning mission. So on games like crysis 3 and perhaps (because I have not tried played it myself) battlefield 4 it might be worth going with the 4770k. But on any other game you will be fine with a 4670k.
Sure, np.
Anything that can use up all available CPU power in order to speed up its function will make use of hyperthreading. The thing with twitch tv is its very situational. For example if I play mass effect 3 on absolute highest settings at 2560x1440 I only utilize one of my cores at 80%. Which means I have the full power of the remaining 3 cores on the 4670k. I have heard that battlefield 4 is a very CPU intensive game when it comes to multiplayer and is one of the few games that can utilize all 8 cores and make good use of hyperthreading on intel i7's. If you use twitchtv now my suggestion would be to play a game that you can easily run then begin to twitch it and use an on screen display or LCD display on the keyboard to take notice of how much CPU power twitch is using itself. Although I have not used twitchtv myself I would doubt that it would require a ridiculous amount of power to use as that would make its practical use garbage. It has probably been optimized to use 1 core very well and so you should have no issues with a 4670k. If you have time and can wait for me to load up say crysis 3 and play around with twitch I could get back to you with a precise answer.
"Video encoding, editing etc" Explain the "etc" please? I'm trying to decide between i5 and i7. Would the i7 be better for streaming on Does hyperthreading affect streaming? Essentially, it's real-time video rendering isn't it?
what games will you play?
Sorry hyper threading means nothing for gaming and won't for years to come. If it's just gaming 4670k. Video encoding, editing etc 4770k. I own both And have benchmarked both and they are identical in all benchmarks except in games or benchmarks that use physx on the CPU which is an obvious multithreaded dependent thing.
Im building a pc for gaming and want to get no lower than 70fps. 4670k+gtx 780 ghz edition will be my next purchase.
If you look for the "value for money" factor i5 4670k is one of the best. But i7 is i7! For a gaming pc the 70-80% of work is made on the gpu, so you don't have a serious reason to buy an i7 for an absolut gaming pc. Save these money and buy a better gpu like 780 or 780Ti.
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