CPUBoss Review Our evaluation of 4670K vs 4100

Performance

Benchmark performance using all cores

Passmark and GeekBench

Single-core Performance

Individual core benchmark performance

Passmark (Single Core)

Power Consumption

How much power does the processor require?

TDP

Value

Performance Per Dollar

No winner declared

Too close to call

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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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Newer manufacturing process 22 nms vs 32 nms A newer manufacturing process allows for a more powerful, yet cooler running processor
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Significantly better PassMark (Single core) score 2,217 vs 1,225 More than 80% better PassMark (Single core) score
Significantly better geekbench (64-bit) score 12,680 vs 5,580 More than 2.2x better geekbench (64-bit) score
Better PassMark score 7,705 vs 4,039 More than 90% better PassMark score
Better PassMark (Overclocked) score 5,198.5 vs 2,972.7 Around 75% better PassMark (Overclocked) score
Better performance per watt 12.81 pt/W vs 4.31 pt/W Around 3x better performance per watt
Better 3DMark11 physics score 6,830 vs 5,760 Around 20% better 3DMark11 physics score
Marginally newer Apr, 2013 vs Oct, 2011 Release date over 1 years later
Lower annual home energy cost 20.24 $/year vs 34.18 $/year More than 40% lower annual home energy cost
Lower annual commercial energy cost 73.58 $/year vs 114.41 $/year More than 35% lower annual commercial energy cost
Front view of AMD FX 4100

Reasons to consider the
AMD FX 4100

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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
Much more l2 cache per core 1 MB/core vs 0.25 MB/core 4x more l2 cache per core
Slightly higher clock speed 3.6 GHz vs 3.4 GHz More than 5% higher clock speed
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
More l3 cache per core 2 MB/core vs 1.5 MB/core Around 35% more l3 cache per core

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

GeekBench (32-bit)

Core i5 4670K
11,560
FX 4100
5,008

GeekBench (64-bit)

Core i5 4670K
12,680
FX 4100
5,580

GeekBench

Core i5 4670K
12,680
FX 4100
6,919

3D Mark 11 (Physics)

FX 4100
5,760
Core i5 4670K FX 4100 @ community.futuremark.com
I ran a few quick benches like the CPU physics test in 3dmark11, and the linx FLOPS test.
FX 4100 | by damric (Sep, 2012)

Passmark

FX 4100
4,039
The performance of the FX-4100 wasn't awful, but we didn't expect to see the AMD A6-3650 running at 2.6GHz to beat the AMD FX-4100 running at 3.6GHz in benchmarks like POV-Ray and Cinebench!
FX 4100 | by Legit Reviews (Nov, 2011)

Passmark (Single Core)

FX 4100
1,225
Benchmark Results: The AMD FX-4100 was able to hit an overall score of 14408 points in 3DMark Vantage, which puts it at the bottom of the performance chart.
FX 4100 | by Legit Reviews (Nov, 2011)

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
Is hyperthreaded No No

features

Has a NX bit Yes Yes
Has vitualization support Yes Yes
Instruction-set-extensions
MMX
SSE
SSE4.2
AVX
SSE3
FMA3
SSE2
EM64T
F16C
Supplemental SSE3
SSE4.1
SSE4
SSE4a
AVX 2.0
AES
3DNow!
Supports dynamic frequency scaling Yes Yes

gpu

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
DDR3
Channels Dual Channel Dual Channel
Maximum bandwidth 25,600 MB/s 29,866.66 MB/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 nms 32 nms
Max CPUs 1 2
Operating temperature Unknown - 72.72°C Unknown - 70°C

overclocking

Overclock popularity 57 127
Overclocked clock speed 4.51 GHz 4.72 GHz
Overclocked clock speed (Water) 4.6 GHz 4.81 GHz
PassMark (Overclocked) 5,198.5 2,972.7
Overclocked clock speed (Air) 4.51 GHz 4.72 GHz

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 12.81 pt/W 4.31 pt/W
Typical power consumption 68.25W N/A

bus

Architecture DMI HyperTransport 3.1
Number of links 0 1
Transfer rate 5,000 MT/s 5,200 MT/s
Intel Core i5 4670K
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AMD FX 4100
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