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Differences What are the advantages of each

Front view of Intel Core i3 2115C

Reasons to consider the
Intel Core i3 2115C

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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
Much lower typical power consumption 20.31W vs 77.19W 3.8x lower typical power consumption
Much more l3 cache per core 1.5 MB/core vs 0 MB/core Compared to all cpus, 1.5 MB/core l3 cache per core is just OK
More l3 cache 3 MB vs 0 MB Compared to all cpus, 3 MB l3 cache is just OK
Much lower annual home energy cost 6.02 $/year vs 22.89 $/year 3.8x lower annual home energy cost
Much lower annual commercial energy cost 21.9 $/year vs 83.22 $/year 3.8x lower annual commercial energy cost
Newer Apr, 2012 vs Jan, 2011 Release date over 1 years later
Front view of AMD Phenom II X4 840

Reasons to consider the
AMD Phenom II X4 840

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Significantly higher clock speed 3.2 GHz vs 2 GHz More than 60% higher clock speed
Significantly more l2 cache 2 MB vs 1 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
More cores 4 vs 2 Twice as many cores; run more applications at once

Features Key features of the Core i3 2115C  vs Phenom II X4 840 

clock speed

L2 cache

Specifications Full list of technical specs

summary

Core i3 2115C  vs
Phenom II X4 840 
Clock speed 2 GHz 3.2 GHz
Cores Dual core Quad core
Is unlocked No No

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
AVX
SSE3
SSE
SSE4.1
SSE4.2
3DNow!
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 25W 95W
Annual home energy cost 6.02 $/year 22.89 $/year
Annual commercial energy cost 21.9 $/year 83.22 $/year
Typical power consumption 20.31W 77.19W

details

Core i3 2115C  vs
Phenom II X4 840 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 1 MB 2 MB
L2 cache per core 0.5 MB/core 0.5 MB/core
L3 cache 3 MB 0 MB
L3 cache per core 1.5 MB/core 0 MB/core
Manufacture process 32 nm 45 nm
Max CPUs 1 1

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

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1333
DDR3-1066
DDR3
Intel Core i3 2115C
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AMD Phenom II X4 840
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