CPUBoss Review Our evaluation of 4770K vs 3770K among desktop CPUs (over 75W)


Benchmark performance using all cores

PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

Fire Strike

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

CompuBench 1.5 Face detection and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Overall Performance and TDP


Are you paying a premium for performance?

Overall Performance and Price


CPUBoss Score

Combination of all six facets

Intel Core i7 4770K 

CPUBoss recommends the Intel Core i7 4770K  based on its performance, single-core performance and value.

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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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Much higher Maximum operating temperature 72.72 °C vs 67.4 °C Around 10% higher Maximum operating temperature
Much lower typical power consumption 68.25W vs 114.98W More than 40% lower typical power consumption
Much better turbo clock speed 1,250 MHz vs 1,150 MHz Around 10% better turbo clock speed
Much better performance per watt 12.33 pt/W vs 5.78 pt/W Around 2.2x better performance per watt
Significantly better fire strike score 883 vs 590 Around 50% better fire strike score
Better CompuBench 1.5 ocean surface simulation score 244.75 fps vs 182.74 fps Around 35% better CompuBench 1.5 ocean surface simulation score
Much lower annual home energy cost 20.24 $/year vs 42.19 $/year 2.1x lower annual home energy cost
Newer Jun, 2013 vs Apr, 2012 Release date over 1 years later
Better performance per dollar 4.41 pt/$ vs 2.81 pt/$ More than 55% better performance per dollar
Much lower annual commercial energy cost 73.58 $/year vs 112.39 $/year Around 35% lower annual commercial energy cost
Better cinebench r10 32Bit 1-core score 7,718 vs 6,862 More than 10% better cinebench r10 32Bit 1-core score
Better cinebench r10 32Bit score 30,095 vs 25,703 More than 15% better cinebench r10 32Bit score
Front view of Intel Core i7 3770K

Reasons to consider the
Intel Core i7 3770K

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Significantly higher GPU clock speed 650 MHz vs 350 MHz More than 85% higher GPU clock speed
Better overclocked clock speed (Air) 4.71 GHz vs 4.48 GHz More than 5% better overclocked clock speed (Air)

Benchmarks Real world tests of Core i7 4770K vs 3770K

CompuBench 1.5 (T-Rex) Data courtesy CompuBench

Core i7 4770K
1.97 fps
Core i7 3770K
1.67 fps

PCMark 8 Home 3.0 Accelerated Data courtesy FutureMark

Sky Diver Data courtesy FutureMark

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench (32-bit) Data courtesy Primate Labs

3D Mark 11 (Physics)

Cinebench R11.5

sysmark 2007 (overall)

Reviews Word on the street

Core i7 4770K  vs 3770K 

And because Ivy Bridge chips like the Core i7-3770K are intended for more middle-of-the-road users, they come loaded with integrated graphics systems that can drive up to three independent displays and support HDMI 1.4a and its associated high-quality audio, in addition to InTru 3D (for stereoscopic 3D) and HD video conferencing.
Core i7 3770K

It's hard to imagine any desktop PC user ever needing more performance than the new Intel Core i7 3770K serves up.
Core i7 3770K


7.8 Out of 10
8.8 Out of 10

Specifications Full list of technical specs


Core i7 4770K  vs
Clock speed 3.5 GHz 3.5 GHz
Turbo clock speed 3.9 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 84W 77W
Annual home energy cost 20.24 $/year 42.19 $/year
Annual commercial energy cost 73.58 $/year 112.39 $/year
Performance per watt 12.33 pt/W 5.78 pt/W
Typical power consumption 68.25W 114.98W


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


Core i7 4770K  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 22 nm 22 nm
Max CPUs 1 1
Operating temperature Unknown - 72.72°C Unknown - 67.4°C


Overclock popularity 205 332
Overclock review score 1 0.96
Overclocked clock speed 4.48 GHz 4.71 GHz
Overclocked clock speed (Water) 4.52 GHz 4.61 GHz
PassMark (Overclocked) 6,694.4 6,731.8
Overclocked clock speed (Air) 4.48 GHz 4.71 GHz

integrated graphics

Label Intel® HD Graphics 4600 Intel® HD Graphics 4000
Number of displays supported 3 3
GPU clock speed 350 MHz 650 MHz
Turbo clock speed 1,250 MHz 1,150 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 i7 3770K
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Showing 11 comments.
you spelled douchebag wrong ya douchebag
You really replied to the reply to just say that, you are a deushebag
You really just replied to something posted 10 months ago ._...
Ok... But new IGP is still shitty :P
omg wth ,, intel joking !! 8.9 >>>>>9.1 ???!!!!!
I don't see how the Haswell i7 won. The benchmarks were extremely close: there have been other comparisons where benchmarks were "too close to call" before and no winner picked. seems inconsistent to declare winners on things so close and no calls on others with identical closeness.
in the end of page the gpu values are written wrong order: GPU clock speed 350 MHz 650 MHz but it must be GPU clock speed 650 MHz 350 MHz
77/88W is TDP not the power consumption.
3770K 77W 4770K 87W where do you get 65/115? thios test is a big fake
Intel HD4600 is nearly 2x more powerful than the HD4000 on the 3770k. Chill. The gpu frequency boosts under load.
what to do? fu i had already bought mother motherboard and it only support 4th gen. i hope dual processing will do his to benefit 3770. ill overclock it at 4.5 with water cooling for stability. i hated 4770's gpu clock speed. wtf im going to use integrated memory for first months with 2 monitors :(
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