CPUBoss Review Our evaluation of E8400 vs 4100 among desktop CPUs

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

4.7

CPUBoss Score

Combination of all six facets

Winner
Intel Core2 Duo E8400 

CPUBoss recommends the Intel Core2 Duo E8400  based on its .

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VS

Differences What are the advantages of each

Front view of Intel Core2 Duo E8400

Reasons to consider the
Intel Core2 Duo E8400

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Much lower annual home energy cost 15.66 $/year vs 34.18 $/year 2.2x lower annual home energy cost
Much lower annual commercial energy cost 56.94 $/year vs 114.41 $/year 2x lower annual commercial energy cost
Higher Maximum operating temperature 72.4 °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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Much higher clock speed 3.6 GHz vs 3 GHz More than 20% higher clock speed
Much newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More cores 4 vs 2 Twice as many cores; run more applications at once
More threads 4 vs 2 Twice as many threads
Much better overclocked clock speed (Air) 4.66 GHz vs 4.22 GHz More than 10% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 4.99 GHz vs 4.23 GHz Around 20% better overclocked clock speed (Water)
Newer Oct, 2011 vs Jan, 2008 Release date over 3 years later

Benchmarks Real world tests of Core2 Duo E8400 vs FX 4100

GeekBench 3 (Multi-core) Data courtesy Primate Labs

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

Core2 Duo E8400
128,000 MB/s
FX 4100
2,150,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

FX 4100
4,993

GeekBench (64-bit) Data courtesy Primate Labs

FX 4100
5,580

GeekBench

FX 4100
6,919

PassMark Data courtesy Passmark

FX 4100
4,051

PassMark (Single Core)

FX 4100
1,221

Reviews Word on the street

Specifications Full list of technical specs

summary

Core2 Duo E8400  vs
FX 4100 
Clock speed 3 GHz 3.6 GHz
Cores Dual core Quad core
Socket type
LGA 775
AM3+

features

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

integrated graphics

GPU None None
Label N/A N/A
Latest DirectX N/A N/A
Number of displays supported N/A N/A
GPU clock speed N/A N/A
Turbo clock speed N/A N/A
3DMark06 N/A N/A

details

Core2 Duo E8400  vs
FX 4100 
Architecture x86-64 x86-64
Threads 2 4
L2 cache 6 MB 4 MB
L2 cache per core 3 MB/core 1 MB/core
Manufacture process 45 nm 32 nm
Transistor count 410,000,000 1,200,000,000
Max CPUs 1 1
Voltage range 0.85 - 1.36V 1.14 - 1.55V
Operating temperature Unknown - 72.4°C Unknown - 70.5°C

overclocking

Overclock popularity 125 127
Overclock review score 4.5 4
Overclocked clock speed 4.22 GHz 4.66 GHz
Overclocked clock speed (Water) 4.23 GHz 4.99 GHz
Overclocked clock speed (Air) 4.22 GHz 4.66 GHz

power consumption

TDP 65W 95W
Annual home energy cost 15.66 $/year 34.18 $/year
Annual commercial energy cost 56.94 $/year 114.41 $/year
Performance per watt 1.83 pt/W 6.46 pt/W
Typical power consumption 52.81W N/A

bus

Architecture FSB HyperTransport 3.1
Number of links 1 1
Clock speed 1,333 MHz 3,200 MHz
Intel Core2 Duo E8400
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AMD FX 4100
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