CPUBoss Review Our evaluation of E8400 vs 4200+ 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

3.8

CPUBoss Score

Combination of all six facets

Winner
Intel Core2 Duo E8400 

CPUBoss recommends the Intel Core2 Duo E8400  based on its performance, single-core performance and overclocking.

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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 more l2 cache 6 MB vs 1 MB 6x more l2 cache; more data can be stored in the l2 cache for quick access later
Much newer manufacturing process 45 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much higher clock speed 3 GHz vs 2.2 GHz More than 35% higher clock speed
Much better PassMark score 2,160 vs 1,099 More than 95% better PassMark score
Much better PassMark (Single core) score 1,251 vs 667 Around 90% better PassMark (Single core) score
Much better geekbench 2 (32-bit) score 2,826 vs 1,586 Around 80% better geekbench 2 (32-bit) score
Much better overclocked clock speed (Air) 4.22 GHz vs 2.65 GHz Around 60% better overclocked clock speed (Air)
Much better performance per watt 1.83 pt/W vs 0.52 pt/W Around 3.5x better performance per watt
Much higher Maximum operating temperature 72.4 °C vs 49 °C Around 50% higher Maximum operating temperature
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Much more l2 cache per core 3 MB/core vs 0.5 MB/core 6x more l2 cache per core
Significantly lower typical power consumption 52.81W vs 72.31W More than 25% lower typical power consumption
Much better overclocked clock speed (Water) 4.23 GHz vs 2.9 GHz More than 45% better overclocked clock speed (Water)
Significantly lower annual home energy cost 15.66 $/year vs 21.44 $/year More than 25% lower annual home energy cost
Significantly lower annual commercial energy cost 56.94 $/year vs 77.96 $/year More than 25% lower annual commercial energy cost
Newer Jan, 2008 vs May, 2005 Release date over 2 years later
Front view of AMD Athlon X2 4200+

Reasons to consider the
AMD Athlon X2 4200+

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CPUBoss is not aware of any important advantages of the AMD Athlon X2 4200+ vs the Intel Core2 Duo E8400.

Benchmarks Real world tests of Core2 Duo E8400 vs Athlon X2 4200+

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

Core2 Duo E8400
128,000 MB/s
Athlon X2 4200+
59.9 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench (64-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core2 Duo E8400  vs
Athlon X2 4200+ 
Clock speed 3 GHz 2.2 GHz
Cores Dual core Dual core
Socket type
LGA 775
AM2
939

features

Has a NX bit Yes Yes
Has virtualization support Yes No
Instruction set extensions
SSE2
MMX
SSE3
SSE
SSE4.1
3DNow!
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 65W 89W
Annual home energy cost 15.66 $/year 21.44 $/year
Annual commercial energy cost 56.94 $/year 77.96 $/year
Performance per watt 1.83 pt/W 0.52 pt/W
Typical power consumption 52.81W 72.31W

details

Core2 Duo E8400  vs
Athlon X2 4200+ 
Architecture x86-64 x86-64
Threads 2 2
L2 cache 6 MB 1 MB
L2 cache per core 3 MB/core 0.5 MB/core
Manufacture process 45 nm 90 nm
Max CPUs 1 1
Operating temperature Unknown - 72.4°C Unknown - 49°C

overclocking

Overclocked clock speed 4.22 GHz 2.65 GHz
Overclocked clock speed (Water) 4.23 GHz 2.9 GHz
Overclocked clock speed (Air) 4.22 GHz 2.65 GHz

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
Intel Core2 Duo E8400
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AMD Athlon X2 4200+
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