CPUBoss Review Our evaluation of E5620 vs 4386 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 E5620 

CPUBoss recommends the Intel Xeon E5620  based on its cost to run.

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VS

Differences What are the advantages of each

Front view of Intel Xeon E5620

Reasons to consider the
Intel Xeon E5620

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Much more l3 cache 12 MB vs 8 MB 50% more l3 cache; more data can be stored in the l3 cache for quick access later
Much better performance per watt 7.59 pt/W vs 0.67 pt/W More than 11.2x better performance per watt
Much more l3 cache per core 3 MB/core vs 1 MB/core 3x more l3 cache per core
Much better overclocked clock speed (Air) 3.75 GHz vs 3.41 GHz More than 10% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 4.33 GHz vs 3.1 GHz Around 40% better overclocked clock speed (Water)
Lower typical power consumption 65W vs 77.19W More than 15% lower typical power consumption
Lower annual commercial energy cost 70.08 $/year vs 83.22 $/year More than 15% lower annual commercial energy cost
Lower annual home energy cost 19.27 $/year vs 22.89 $/year More than 15% lower annual home energy cost
Front view of AMD Opteron 4386

Reasons to consider the
AMD Opteron 4386

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Much more l2 cache 8 MB vs 1 MB 8x more l2 cache; more data can be stored in the l2 cache for quick access later
Much higher clock speed 3.1 GHz vs 2.4 GHz Around 30% higher clock speed
Much higher turbo clock speed 3.8 GHz vs 2.66 GHz Around 45% higher turbo clock speed
More cores 8 vs 4 Twice as many cores; run more applications at once
Much more l2 cache per core 1 MB/core vs 0.25 MB/core 4x more l2 cache per core
Newer Dec, 2012 vs Mar, 2010 Release date over 2 years later

Benchmarks Real world tests of Xeon E5620 vs Opteron 4386

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon E5620
14,086
Opteron 4386
1,846

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon E5620
1,898
Opteron 4386
1,851

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E5620
1,280,000 MB/s
Opteron 4386
2,200 MB/s

Specifications Full list of technical specs

summary

Xeon E5620  vs
Opteron 4386 
Clock speed 2.4 GHz 3.1 GHz
Turbo clock speed 2.66 GHz 3.8 GHz
Cores Quad core Octa core
Socket type
LGA 1366
C32

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
AVX 1.1
SSE2
F16C
MMX
SSE4
XOP
AVX
SSE3
SSE
CLMUL
AMD64
SSE4.1
FMA4
FMA3
SSE4.2
CVT16
AMD-V
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 80W 95W
Annual home energy cost 19.27 $/year 22.89 $/year
Annual commercial energy cost 70.08 $/year 83.22 $/year
Performance per watt 7.59 pt/W 0.67 pt/W
Typical power consumption 65W 77.19W

bus

Architecture QPI HyperTransport 3.0
Transfer rate 5,860 MT/s 6,400 MT/s
Clock speed 2,930 MHz 3,200 MHz

details

Xeon E5620  vs
Opteron 4386 
Threads 8 8
L2 cache 1 MB 8 MB
L2 cache per core 0.25 MB/core 1 MB/core
L3 cache 12 MB 8 MB
L3 cache per core 3 MB/core 1 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 2 2
Clock multiplier 18 19
Operating temperature Unknown - 77.6°C Unknown - 70.5°C

overclocking

Overclocked clock speed 3.75 GHz 3.41 GHz
Overclocked clock speed (Water) 4.33 GHz 3.1 GHz
Overclocked clock speed (Air) 3.75 GHz 3.41 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

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1066
DDR3-800
DDR3
Channels Triple Channel Dual Channel
Supports ECC Yes Yes
Maximum bandwidth 25,599.99 MB/s 12,800 MB/s
Intel Xeon E5620
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AMD Opteron 4386
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