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Differences What are the advantages of each

Front view of Intel Core2 Duo E6600

Reasons to consider the
Intel Core2 Duo E6600

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Much more l2 cache 4 MB vs 0.5 MB 8x more l2 cache; more data can be stored in the l2 cache for quick access later
Much more l2 cache per core 2 MB/core vs 0.17 MB/core 12x more l2 cache per core
Much better overclocked clock speed (Water) 3.45 GHz vs 2.5 GHz Around 40% better overclocked clock speed (Water)
Front view of AMD Phenom II X3 705e

Reasons to consider the
AMD Phenom II X3 705e

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Much newer manufacturing process 45 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More cores 3 vs 2 1 more cores; run more applications at once
More threads 3 vs 2 1 more threads
Much higher Maximum operating temperature 72 °C vs 60.1 °C Around 20% higher Maximum operating temperature
Higher clock speed 2.5 GHz vs 2.4 GHz Around 5% higher clock speed
Better overclocked clock speed (Air) 3.57 GHz vs 3.49 GHz Almost the same
Newer Jun, 2009 vs Jul, 2006 Release date over 2 years later

Benchmarks Real world tests of Core2 Duo E6600 vs Phenom II X3 705e

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 E6600
102,200 MB/s
Phenom II X3 705e
99.6 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core2 Duo E6600  vs
Phenom II X3 705e 
Clock speed 2.4 GHz 2.5 GHz
Cores Dual core Tri core
Socket type
LGA 775
AM3

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE3
SSE
3DNow!
Supplemental SSE3
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 1.7 pt/W 1.15 pt/W
Typical power consumption 52.81W 52.81W

details

Core2 Duo E6600  vs
Phenom II X3 705e 
Architecture x86-64 x86-64
Threads 2 3
L2 cache 4 MB 0.5 MB
L2 cache per core 2 MB/core 0.17 MB/core
Manufacture process 65 nm 45 nm
Max CPUs 1 1
Voltage range 0.85 - 1.5V 0.8 - 1.25V
Operating temperature Unknown - 60.1°C Unknown - 72°C

overclocking

Overclocked clock speed 3.49 GHz 3.57 GHz
Overclocked clock speed (Water) 3.45 GHz 2.5 GHz
Overclocked clock speed (Air) 3.49 GHz 3.57 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

bus

Clock speed 1,066 MHz 2,000 MHz
Intel Core2 Duo E6600
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AMD Phenom II X3 705e
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