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Differences What are the advantages of each

Front view of Intel Core i3 2100

Reasons to consider the
Intel Core i3 2100

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Much higher clock speed 3.1 GHz vs 2.3 GHz Around 35% higher clock speed
Much newer manufacturing process 32 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Newer Jan, 2011 vs Apr, 2008 Release date over 2 years later
Front view of AMD Phenom X3 8600B

Reasons to consider the
AMD Phenom X3 8600B

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Much more l2 cache 2 MB vs 0.5 MB 4x more l2 cache; more data can be stored in the l2 cache for quick access later
More cores 3 vs 2 1 more cores; run more applications at once
Much more l2 cache per core 0.67 MB/core vs 0.25 MB/core Around 2.8x more l2 cache per core
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Significantly lower typical power consumption 77.19W vs 98.28W More than 20% lower typical power consumption
Much lower annual home energy cost 22.89 $/year vs 37.88 $/year Around 40% lower annual home energy cost
Higher Maximum operating temperature 70 °C vs 69.1 °C Almost the same
Lower annual commercial energy cost 83.22 $/year vs 93.47 $/year More than 10% lower annual commercial energy cost

Features Key features of the Core i3 2100  vs Phenom X3 8600B 

clock speed

Core i3 2100
3.1 GHz
Phenom X3 8600B
2.3 GHz

L2 cache

L3 cache

Specifications Full list of technical specs

summary

Core i3 2100  vs
Phenom X3 8600B 
Clock speed 3.1 GHz 2.3 GHz
Cores Dual core Tri core
Socket type
LGA 1155
AM2+
Is unlocked No No

features

Has a NX bit Yes Yes
Supports trusted computing No Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
3DNow!
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

details

Core i3 2100  vs
Phenom X3 8600B 
Architecture x86-64 x86-64
Threads 4 3
L2 cache 0.5 MB 2 MB
L2 cache per core 0.25 MB/core 0.67 MB/core
L3 cache 3 MB 2 MB
L3 cache per core 1.5 MB/core 0.67 MB/core
Manufacture process 32 nm 65 nm
Max CPUs 1 1
Operating temperature Unknown - 69.1°C Unknown - 70°C

integrated graphics

GPU GPU None
Label Intel® HD Graphics 2000 N/A
Number of displays supported 2 N/A
GPU clock speed 850 MHz N/A
Turbo clock speed 1,100 MHz N/A

power consumption

TDP 65W 95W
Annual home energy cost 37.88 $/year 22.89 $/year
Annual commercial energy cost 93.47 $/year 83.22 $/year
Typical power consumption 98.28W 77.19W
Intel Core i3 2100
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AMD Phenom X3 8600B
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