CPUBoss Review Our evaluation of E5520 vs 8384 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
AMD Opteron 8384 

CPUBoss recommends the AMD Opteron 8384  based on its cost to run.

See full details

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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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More l3 cache 8 MB vs 6 MB Around 35% more l3 cache; more data can be stored in the l3 cache for quick access later
More threads 8 vs 4 Twice as many threads
Much better overclocked clock speed (Air) 3.28 GHz vs 2.7 GHz More than 20% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 4.27 GHz vs 2.7 GHz Around 60% better overclocked clock speed (Water)
More l3 cache per core 2 MB/core vs 1.5 MB/core Around 35% more l3 cache per core
Front view of AMD Opteron 8384

Reasons to consider the
AMD Opteron 8384

Report a correction
Much higher clock speed 2.7 GHz vs 2.26 GHz Around 20% higher clock speed
Much more l2 cache 2 MB vs 1 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Supports more CPUs in SMP configuration 8 vs 2 6 supports more CPUs in SMP configuration
Much 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 Opteron 8384

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon E5520
12,384
Opteron 8384
24,266

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon E5520
1,701
Opteron 8384
1,372

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E5520
102,200 MB/s
Opteron 8384
161.4 MB/s

Specifications Full list of technical specs

summary

Xeon E5520  vs
Opteron 8384 
Clock speed 2.26 GHz 2.7 GHz
Cores Quad core Quad core
Socket type
LGA 1366
F

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE3
SSE
SSE4.1
SSE4.2
3DNow!
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 80W 75W
Annual home energy cost 19.27 $/year 18.07 $/year
Annual commercial energy cost 70.08 $/year 65.7 $/year
Performance per watt 2.4 pt/W 3.66 pt/W
Typical power consumption 65W 60.94W

bus

Clock speed 2,930 MHz 2,200 MHz

details

Xeon E5520  vs
Opteron 8384 
Threads 8 4
L2 cache 1 MB 2 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
L3 cache 8 MB 6 MB
L3 cache per core 2 MB/core 1.5 MB/core
Manufacture process 45 nm 45 nm
Max CPUs 2 8
Clock multiplier 17 13
Voltage range 0.75 - 1.35V 1.3 - UnknownV
Operating temperature Unknown - 72°C 0 - 55°C

overclocking

Overclocked clock speed 3.28 GHz 2.7 GHz
Overclocked clock speed (Water) 4.27 GHz 2.7 GHz
Overclocked clock speed (Air) 3.28 GHz 2.7 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 Opteron 8384
Report a correction

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