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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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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 threads 4 vs 2 Twice as many threads
Much better performance per watt 1.41 pt/W vs 1.11 pt/W More than 25% better performance per watt
Lower typical power consumption 98.28W vs 102.72W Around 5% lower typical power consumption
Lower annual commercial energy cost 93.47 $/year vs 101.7 $/year Around 10% lower annual commercial energy cost
Front view of AMD Athlon II X2 265

Reasons to consider the
AMD Athlon II X2 265

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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
Much more l2 cache per core 1 MB/core vs 0.25 MB/core 4x more l2 cache per core
Higher clock speed 3.3 GHz vs 3.1 GHz More than 5% higher clock speed
Much better overclocked clock speed (Air) 3.86 GHz vs 3.23 GHz Around 20% better overclocked clock speed (Air)
Significantly higher Maximum operating temperature 74 °C vs 69.1 °C More than 5% higher Maximum operating temperature
Lower annual home energy cost 36.79 $/year vs 37.88 $/year Around 5% lower annual home energy cost

Benchmarks Real world tests of Core i3 2100 vs Athlon II X2 265

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

Core i3 2100
153,100 MB/s
Athlon II X2 265
133,500 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

Cinebench R10 32-Bit

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i3 2100  vs
Athlon II X2 265 
Clock speed 3.1 GHz 3.3 GHz
Cores Dual core Dual core
Socket type
LGA 1155
AM3
Is unlocked No No

features

Has a NX bit Yes 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

power consumption

TDP 65W 65W
Annual home energy cost 37.88 $/year 36.79 $/year
Annual commercial energy cost 93.47 $/year 101.7 $/year
Performance per watt 1.41 pt/W 1.11 pt/W
Idle power consumption 73W 62.6W
Peak power consumption 106.7W 116.1W
Typical power consumption 98.28W 102.72W

details

Core i3 2100  vs
Athlon II X2 265 
Architecture x86-64 x86-64
Threads 4 2
L2 cache 0.5 MB 2 MB
L2 cache per core 0.25 MB/core 1 MB/core
L3 cache 3 MB 1 MB
L3 cache per core 1.5 MB/core 0.5 MB/core
Manufacture process 32 nm 45 nm
Max CPUs 1 1
Operating temperature Unknown - 69.1°C Unknown - 74°C

overclocking

Overclocked clock speed 3.23 GHz 3.86 GHz
Overclocked clock speed (Water) 3.23 GHz 3.3 GHz
Overclocked clock speed (Air) 3.23 GHz 3.86 GHz

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
Intel Core i3 2100
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AMD Athlon II X2 265
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