CPUBoss Review Our evaluation of 4670K vs 4100 among desktop CPUs (over 75W)

Performance

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 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

9.2

CPUBoss Score

Combination of all six facets

Winner
Intel Core i5 4670K 

CPUBoss recommends the Intel Core i5 4670K  based on its performance and single-core performance.

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VS

Differences What are the advantages of each

Front view of Intel Core i5 4670K

Reasons to consider the
Intel Core i5 4670K

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Much newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better geekbench 2 (32-bit) score 11,573 vs 4,993 More than 2.2x better geekbench 2 (32-bit) score
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much better geekbench 3 AES single core score 4,930,000 MB/s vs 2,150,000 MB/s More than 2.2x better geekbench 3 AES single core score
Much better geekbench 3 Multi-Core score 11,554 vs 5,176 Around 2.2x better geekbench 3 Multi-Core score
Significantly better performance per watt 11.79 pt/W vs 6.45 pt/W Around 85% better performance per watt
Much lower annual home energy cost 20.24 $/year vs 34.18 $/year More than 40% lower annual home energy cost
Newer Apr, 2013 vs Oct, 2011 Release date over 1 years later
Much lower annual commercial energy cost 73.58 $/year vs 114.41 $/year More than 35% lower annual commercial energy cost
Higher Maximum operating temperature 72.72 °C vs 70.5 °C Around 5% higher Maximum operating temperature
Front view of AMD FX 4100

Reasons to consider the
AMD FX 4100

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Significantly more l2 cache 4 MB vs 1 MB 4x more l2 cache; more data can be stored in the l2 cache for quick access later
Higher clock speed 3.6 GHz vs 3.4 GHz More than 5% higher clock speed
Much more l2 cache per core 1 MB/core vs 0.25 MB/core 4x more l2 cache per core
More l3 cache 8 MB vs 6 MB Around 35% more l3 cache; more data can be stored in the l3 cache for quick access later
More l3 cache per core 2 MB/core vs 1.5 MB/core Around 35% more l3 cache per core
Better performance per dollar 8.42 pt/$ vs 5.16 pt/$ Around 65% better performance per dollar
Better overclocked clock speed (Air) 4.67 GHz vs 4.48 GHz Around 5% better overclocked clock speed (Air)
Better overclocked clock speed (Water) 4.78 GHz vs 4.55 GHz More than 5% better overclocked clock speed (Water)

Benchmarks Real world tests of Core i5 4670K vs FX 4100

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core i5 4670K
11,554
FX 4100
5,176

GeekBench 3 (Single core) Data courtesy Primate Labs

FX 4100
1,827

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i5 4670K
4,930,000 MB/s
FX 4100
2,150,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Core i5 4670K
11,573
FX 4100
4,993

GeekBench (64-bit) Data courtesy Primate Labs

Core i5 4670K
12,725
FX 4100
5,580

GeekBench

Core i5 4670K
12,725
FX 4100
6,919

PassMark Data courtesy Passmark

FX 4100
4,043

PassMark (Single Core)

FX 4100
1,223

Reviews Word on the street

Core i5 4670K  vs FX 4100 

8.0
7.0
But the 4670K has the same 3.4GHz baseclock and 3.8GHz Turbo as the old 3570K, with the same quad-core layout, and 6MB of Intel Smart Cache.
Core i5 4670K

Specifications Full list of technical specs

summary

Core i5 4670K  vs
FX 4100 
Clock speed 3.4 GHz 3.6 GHz
Turbo clock speed 3.8 GHz 3.8 GHz
Cores Quad core Quad core
Is unlocked Yes Yes

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
F16C
MMX
SSE4
XOP
AVX
SSE3
EM64T
SSE
ABM
CLMUL
AMD64
SSE4.1
FMA4
FMA3
SSE4.2
CVT16
AMD-V
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 84W 95W
Annual home energy cost 20.24 $/year 34.18 $/year
Annual commercial energy cost 73.58 $/year 114.41 $/year
Performance per watt 11.79 pt/W 6.45 pt/W
Typical power consumption 68.25W N/A

bus

Architecture DMI 2.0 HyperTransport 3.1
Number of links 0 1
Transfer rate 5,000 MT/s 5,200 MT/s

details

Core i5 4670K  vs
FX 4100 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 1 MB 4 MB
L2 cache per core 0.25 MB/core 1 MB/core
L3 cache 6 MB 8 MB
L3 cache per core 1.5 MB/core 2 MB/core
Manufacture process 22 nm 32 nm
Max CPUs 1 1
Operating temperature Unknown - 72.72°C Unknown - 70.5°C

overclocking

Overclock popularity 57 127
Overclocked clock speed 4.48 GHz 4.67 GHz
Overclocked clock speed (Water) 4.55 GHz 4.78 GHz
PassMark (Overclocked) 5,198.5 2,972.7
Overclocked clock speed (Air) 4.48 GHz 4.67 GHz

integrated graphics

GPU GPU None
Label Intel® HD Graphics 4600 N/A
Number of displays supported 3 N/A
GPU clock speed 350 MHz N/A
Turbo clock speed 1,200 MHz N/A

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1866
DDR3-1600
DDR3-1333
DDR3L-1333
Channels Dual Channel Dual Channel
Supports ECC No Yes
Maximum bandwidth 25,600 MB/s 29,866.66 MB/s
Intel Core i5 4670K
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AMD FX 4100
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