CPUBoss Review Our evaluation of 2100T vs 6400K

Performance

Benchmark performance using all cores

Passmark and GeekBench (32-bit)

Single-core Performance

Individual core benchmark performance

Passmark (Single Core)

Overclocking

How much speed can you get out of the processor?

Unlocked, Maximum Overclocked Clock Speed (Air) and 1 more

Value

Are you paying a premium for performance?

Performance Per Dollar

CPUBoss Score

Performance, Single-core Performance, Overclocking and Value

Winner
AMD A6 6400K 

CPUBoss recommends the AMD A6 6400K  based on its overclocking.

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VS
Front view of AMD A6 6400K

AMD A6 6400K

CPUBoss Winner

Differences What are the advantages of each

Front view of Intel Core i3 2100T

Reasons to consider the
Intel Core i3 2100T

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Is hyperthreaded Yes vs No Somewhat common; Maximizes usage of each CPU core
Lower typical power consumption 28.44W vs 52.81W More than 45% lower typical power consumption
More threads 4 vs 2 Twice as many threads
Better performance per watt 12.51 pt/W vs 6.55 pt/W More than 90% better performance per watt
Lower annual commercial energy cost 30.66 $/year vs 56.94 $/year More than 45% lower annual commercial energy cost
Lower annual home energy cost 8.43 $/year vs 15.66 $/year More than 45% lower annual home energy cost
Front view of AMD A6 6400K

Reasons to consider the
AMD A6 6400K

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Much higher clock speed 3.9 GHz vs 2.5 GHz More than 55% higher clock speed
Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Much better performance per dollar 12.26 pt/$ vs 4.16 pt/$ Around 3x better performance per dollar
Much better overclocked clock speed (Air) 4.75 GHz vs 2.63 GHz More than 80% better overclocked clock speed (Air)
Higher Maximum Operating Temperature 70 °C vs 65 °C Around 10% higher Maximum Operating Temperature
Marginally newer Jun, 2013 vs Jan, 2011 Release date over 2 years later
Better PassMark (Single core) score 1,409 vs 1,217 More than 15% better PassMark (Single core) score
Much better overclocked clock speed (Water) 4.54 GHz vs 2.5 GHz More than 80% better overclocked clock speed (Water)

Benchmarks Real world tests of Core i3 2100T vs A6 6400K

GeekBench (32-bit)

A6 6400K
4,094

GeekBench

A6 6400K
4,094

Passmark (Single Core)

A6 6400K
1,409

Specifications Full list of technical specs

summary

Core i3 2100T  vs
A6 6400K 
Clock speed 2.5 GHz 3.9 GHz
Cores Dual core Dual core
Is unlocked No Yes
Is hyperthreaded Yes No

features

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

gpu

GPU GPU GPU
Label Intel® HD Graphics 2000 Radeon™ HD 8470D

details

Core i3 2100T  vs
A6 6400K 
Threads 4 2
L2 cache 1 MB 1 MB
L2 cache per core 0.5 MB/core 0.5 MB/core
Manufacture process 32 nms 32 nms
Max CPUs 1 1
Operating temperature Unknown - 65°C Unknown - 70°C

overclocking

Overclocked clock speed 2.63 GHz 4.75 GHz
Overclocked clock speed (Water) 2.5 GHz 4.54 GHz
Overclocked clock speed (Air) 2.63 GHz 4.75 GHz

power consumption

TDP 35W 65W
Annual home energy cost 8.43 $/year 15.66 $/year
Annual commercial energy cost 30.66 $/year 56.94 $/year
Performance per watt 12.51 pt/W 6.55 pt/W
Typical power consumption 28.44W 52.81W
Intel Core i3 2100T
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AMD A6 6400K
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