CPUBoss Review Our evaluation of 2100 vs 245e among desktop CPUs

Performance

Benchmark performance using all cores

PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

Fire Strike

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

7

CPUBoss Score

Combination of all six facets

Winner
Intel Core i3 2100 

CPUBoss recommends the Intel Core i3 2100  based on its .

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VS

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
Higher clock speed 3.1 GHz vs 2.9 GHz More than 5% higher clock speed
Better overclocked clock speed (Water) 3.23 GHz vs 2.9 GHz More than 10% better overclocked clock speed (Water)
Newer Jan, 2011 vs May, 2010 Release date 7 months later
Front view of AMD Athlon II X2 245e

Reasons to consider the
AMD Athlon II X2 245e

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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 lower typical power consumption 36.56W vs 98.28W 2.7x lower typical power consumption
Much more l2 cache per core 1 MB/core vs 0.25 MB/core 4x more l2 cache per core
Much better overclocked clock speed (Air) 4.2 GHz vs 3.23 GHz More than 30% better overclocked clock speed (Air)
Much lower annual home energy cost 10.84 $/year vs 37.88 $/year 3.5x lower annual home energy cost
Higher Maximum operating temperature 72 °C vs 69.1 °C Around 5% higher Maximum operating temperature
Much lower annual commercial energy cost 39.42 $/year vs 93.47 $/year 2.4x lower annual commercial energy cost

Benchmarks Real world tests of Core i3 2100 vs Athlon II X2 245e

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 245e
118,650 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i3 2100  vs
Athlon II X2 245e 
Clock speed 3.1 GHz 2.9 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 45W
Annual home energy cost 37.88 $/year 10.84 $/year
Annual commercial energy cost 93.47 $/year 39.42 $/year
Performance per watt 1.41 pt/W 2.55 pt/W
Typical power consumption 98.28W 36.56W

details

Core i3 2100  vs
Athlon II X2 245e 
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 - 72°C

overclocking

Overclocked clock speed 3.23 GHz 4.2 GHz
Overclocked clock speed (Water) 3.23 GHz 2.9 GHz
Overclocked clock speed (Air) 3.23 GHz 4.2 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 245e
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