CPUBoss Review Our evaluation of 620e vs 5400K 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

5.9

CPUBoss Score

Combination of all six facets

Winner
AMD A6 5400K 

CPUBoss recommends the AMD A6 5400K  based on its overclocking.

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VS

Differences What are the advantages of each

Front view of AMD Athlon II X4 620e

Reasons to consider the
AMD Athlon II X4 620e

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More cores 4 vs 2 Twice as many cores; run more applications at once
More threads 4 vs 2 Twice as many threads
Significantly lower typical power consumption 36.56W vs 52.81W More than 30% lower typical power consumption
Significantly lower annual home energy cost 10.84 $/year vs 15.66 $/year More than 30% lower annual home energy cost
Significantly lower annual commercial energy cost 39.42 $/year vs 56.94 $/year More than 30% lower annual commercial energy cost
Front view of AMD A6 5400K

Reasons to consider the
AMD A6 5400K

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Much more l2 cache 1 MB vs 0 MB Compared to all cpus, 1 MB l2 cache is just OK
Much higher clock speed 3.6 GHz vs 2.7 GHz Around 35% higher clock speed
Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much better overclocked clock speed (Air) 4.46 GHz vs 2.6 GHz More than 70% better overclocked clock speed (Air)
Much newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much more l2 cache per core 0.5 MB/core vs 0 MB/core Compared to all cpus, 0.5 MB/core l2 cache per core is just OK
Much better overclocked clock speed (Water) 5.03 GHz vs 2.6 GHz Around 95% better overclocked clock speed (Water)
Newer Oct, 2012 vs May, 2011 Release date over 1 years later

Benchmarks Real world tests of Athlon II X4 620e vs A6 5400K

PassMark Data courtesy Passmark

Specifications Full list of technical specs

summary

Athlon II X4 620e  vs
A6 5400K 
Clock speed 2.7 GHz 3.6 GHz
Turbo clock speed 0 GHz 3.8 GHz
Cores Quad core Dual core
Is unlocked No Yes

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
AVX 1.1
SSE2
F16C
MMX
XOP
SSE3
SSE
CLMUL
AMD64
SSE4.1
FMA4
SSE4.2
CVT16
AMD-V
3DNow!
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 45W 65W
Annual home energy cost 10.84 $/year 15.66 $/year
Annual commercial energy cost 39.42 $/year 56.94 $/year
Performance per watt 2.64 pt/W 6.62 pt/W
Typical power consumption 36.56W 52.81W

details

Athlon II X4 620e  vs
A6 5400K 
Threads 4 2
L2 cache 0 MB 1 MB
L2 cache per core 0 MB/core 0.5 MB/core
Manufacture process 45 nm 32 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 2.6 GHz 4.46 GHz
Overclocked clock speed (Water) 2.6 GHz 5.03 GHz
Overclocked clock speed (Air) 2.6 GHz 4.46 GHz

integrated graphics

GPU None GPU
Label N/A Radeon™ HD 7540D
Latest DirectX N/A 11.0
GPU clock speed N/A 760 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1866
DDR3
AMD Athlon II X4 620e
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AMD A6 5400K
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