CPUBoss Review Our evaluation of E5520 vs 5400+ among all 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

Sky Diver and Cloud Gate

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?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

5.2

CPUBoss Score

Combination of all six facets

Winner
Intel Xeon E5520 

CPUBoss recommends the Intel Xeon E5520  based on its performance, single-core performance and power consumption.

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VS

Differences What are the advantages of each

Front view of Intel Xeon E5520

Reasons to consider the
Intel Xeon E5520

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Much newer manufacturing process 45 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better geekbench 2 (32-bit) score 7,188 vs 1,968 Around 3.8x better geekbench 2 (32-bit) score
Much better geekbench 3 Multi-Core score 12,384 vs 1,922 Around 6.5x better geekbench 3 Multi-Core score
More l3 cache 8 MB vs 0 MB Compared to all cpus, 8 MB l3 cache is just OK
Much more l3 cache per core 2 MB/core vs 0 MB/core Compared to all cpus, 2 MB/core l3 cache per core is just OK
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
More threads 8 vs 2 6 more threads
Better geekbench 3 single core score 1,701 vs 1,130 More than 50% better geekbench 3 single core score
Significantly higher Maximum operating temperature 72 °C vs 55 °C More than 30% higher Maximum operating temperature
More cores 4 vs 2 Twice as many cores; run more applications at once
Lower typical power consumption 65W vs 72.31W More than 10% lower typical power consumption
Better performance per watt 2.4 pt/W vs 0.66 pt/W Around 3.8x better performance per watt
Significantly better overclocked clock speed (Water) 4.27 GHz vs 3.44 GHz Around 25% better overclocked clock speed (Water)
Lower annual home energy cost 19.27 $/year vs 21.44 $/year More than 10% lower annual home energy cost
Lower annual commercial energy cost 70.08 $/year vs 77.96 $/year More than 10% lower annual commercial energy cost
Front view of AMD Athlon X2 5400+

Reasons to consider the
AMD Athlon X2 5400+

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Higher clock speed 2.8 GHz vs 2.26 GHz Around 25% higher clock speed
More l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core

Benchmarks Real world tests of Xeon E5520 vs Athlon X2 5400+

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

Xeon E5520
102,200 MB/s
Athlon X2 5400+
73.6 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench (64-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon E5520  vs
Athlon X2 5400+ 
Clock speed 2.26 GHz 2.8 GHz
Cores Quad core Dual core
Socket type
LGA 1366
AM2

features

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

power consumption

TDP 80W 89W
Annual home energy cost 19.27 $/year 21.44 $/year
Annual commercial energy cost 70.08 $/year 77.96 $/year
Performance per watt 2.4 pt/W 0.66 pt/W
Typical power consumption 65W 72.31W

details

Xeon E5520  vs
Athlon X2 5400+ 
Architecture x86-64 x86-64
Threads 8 2
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
L3 cache 8 MB 0 MB
L3 cache per core 2 MB/core 0 MB/core
Manufacture process 45 nm 90 nm
Max CPUs 2 1
Voltage range 0.75 - 1.35V 1.3 - 1.35V
Operating temperature Unknown - 72°C Unknown - 55°C

overclocking

Overclocked clock speed 3.28 GHz 3.27 GHz
Overclocked clock speed (Water) 4.27 GHz 3.44 GHz
Overclocked clock speed (Air) 3.28 GHz 3.27 GHz

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
Intel Xeon E5520
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AMD Athlon X2 5400+
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