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Differences What are the advantages of each

Front view of Intel Core2 Duo E8600

Reasons to consider the
Intel Core2 Duo E8600

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Higher clock speed 3.33 GHz vs 3 GHz More than 10% higher clock speed
Much better overclocked clock speed (Air) 4.61 GHz vs 3.56 GHz Around 30% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 4.6 GHz vs 3.67 GHz More than 25% better overclocked clock speed (Water)
Significantly lower annual commercial energy cost 113.62 $/year vs 138.41 $/year Around 20% lower annual commercial energy cost
Front view of AMD A8 3870K

Reasons to consider the
AMD A8 3870K

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Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
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 lower annual home energy cost 40.03 $/year vs 47.3 $/year More than 15% lower annual home energy cost
Newer Dec, 2011 vs Jul, 2008 Release date over 3 years later

Benchmarks Real world tests of Core2 Duo E8600 vs A8 3870K

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 E8600
136,900 MB/s
A8 3870K
126,200 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 E8600  vs
A8 3870K 
Clock speed 3.33 GHz 3 GHz
Cores Dual core Quad core
Socket type
LGA 775
FM1

features

Has a NX bit Yes Yes
Supports trusted computing Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE3
SSE
AMD64
SSE4.1
AMD-V
3DNow!
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 65W 100W
Annual home energy cost 47.3 $/year 40.03 $/year
Annual commercial energy cost 113.62 $/year 138.41 $/year
Performance per watt 1.1 pt/W 1.03 pt/W
Idle power consumption 93.5W 47W
Peak power consumption 129.7W 158W
Typical power consumption 120.65W N/A

details

Core2 Duo E8600  vs
A8 3870K 
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 1,178,000,000
Max CPUs 1 1
Clock multiplier 10 30
Voltage range 0.85 - 1.36V 0.45 - 1.41V
Operating temperature Unknown - 72.4°C Unknown - 72.7°C

overclocking

Overclock popularity 9 32
Overclocked clock speed 4.61 GHz 3.56 GHz
Overclocked clock speed (Water) 4.6 GHz 3.67 GHz
Overclocked clock speed (Air) 4.61 GHz 3.56 GHz

integrated graphics

GPU None GPU
Label N/A Radeon™ HD 6550D
Latest DirectX N/A 11.0
Number of displays supported N/A 2
GPU clock speed N/A 600 MHz
Turbo clock speed N/A 600 MHz

bus

Architecture FSB FSB
Number of links 1 4
Clock speed 1,333 MHz 100 MHz
Intel Core2 Duo E8600
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AMD A8 3870K
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