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Intel Core2 Duo E8400

Front view of Intel Core2 Duo E8400
Front view of AMD Athlon II X2 250

AMD Athlon II X2 250

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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 better overclocked clock speed (Air) 4.22 GHz vs 3.72 GHz Around 15% better overclocked clock speed (Air)
Better overclocked clock speed (Water) 4.23 GHz vs 4.04 GHz Around 5% better overclocked clock speed (Water)
Front view of AMD Athlon II X2 250

Reasons to consider the
AMD Athlon II X2 250

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Much newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Higher Maximum operating temperature 74 °C vs 72.4 °C Almost the same
Newer Jun, 2009 vs Jan, 2008 Release date over 1 years later

Benchmarks Real world tests of Core2 Duo E8400 vs Athlon II X2 250

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core2 Duo E8400
2,982
Athlon II X2 250
2,814

GeekBench 3 (Single core) Data courtesy Primate Labs

Core2 Duo E8400
1,625
Athlon II X2 250
1,524

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core2 Duo E8400
128,000 MB/s
Athlon II X2 250
120,700 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Core2 Duo E8400
2,826
Athlon II X2 250
2,690

GeekBench (64-bit) Data courtesy Primate Labs

Core2 Duo E8400
3,092
Athlon II X2 250
2,929

GeekBench

Core2 Duo E8400
4,794
Athlon II X2 250
4,461

PassMark Data courtesy Passmark

Core2 Duo E8400
2,160
Athlon II X2 250
1,750

PassMark (Single Core)

Core2 Duo E8400
1,251
Athlon II X2 250
1,008

Reviews Word on the street

Core2 Duo E8400  vs Athlon II X2 250 
9.1
read review
9.6
read review

Specifications Full list of technical specs

summary

 Core2 Duo E8400  vs
Athlon II X2 250 
Clock speed 3 GHz 3 GHz
Cores Dual core Dual core
Socket type
LGA 775
AM3

features
Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
AVX 1.1
SSE2
F16C
MMX
XOP
AVX
SSE3
SSE
BMI1
AMD64
SSE4.1
FMA4
FMA3
SSE4.2
ABM
CVT16
AMD-V
Supplemental SSE3
AES
TBM
Supports dynamic frequency scaling Yes Yes

power consumption
TDP 65W 65W
Annual home energy cost 15.66 $/year 15.66 $/year
Annual commercial energy cost 56.94 $/year 56.94 $/year
Performance per watt 1.83 pt/W 1.79 pt/W
Typical power consumption 52.81W 52.81W

bus
Clock speed 1,333 MHz 2,000 MHz

details

 Core2 Duo E8400  vs
Athlon II X2 250 
Architecture x86-64 x86-64
Threads 2 2
L2 cache 6 MB 2 MB
L2 cache per core 3 MB/core 1 MB/core
Manufacture process 45 nm 32 nm
Max CPUs 1 1
Voltage range 0.85 - 1.36V 0.85 - 1.43V
Operating temperature Unknown - 72.4°C Unknown - 74°C

overclocking
Overclock popularity 125 25
Overclocked clock speed 4.22 GHz 3.72 GHz
Overclocked clock speed (Water) 4.23 GHz 4.04 GHz
Overclocked clock speed (Air) 4.22 GHz 3.72 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 II X2 250
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