CPUBoss Review Our evaluation of E5-2620 vs 4334 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

No winner declared

Too close to call

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VS

Differences What are the advantages of each

Front view of Intel Xeon E5-2620

Reasons to consider the
Intel Xeon E5-2620

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Much more l3 cache 15 MB vs 8 MB Around 90% more l3 cache; more data can be stored in the l3 cache for quick access later
More threads 12 vs 6 Twice as many threads
Much more l3 cache per core 2.5 MB/core vs 1.33 MB/core Around 90% more l3 cache per core
Front view of AMD Opteron 4334

Reasons to consider the
AMD Opteron 4334

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Much higher clock speed 3.1 GHz vs 2 GHz More than 55% higher clock speed
Much more l2 cache 6 MB vs 2 MB 3x more l2 cache; more data can be stored in the l2 cache for quick access later
Much higher turbo clock speed 3.5 GHz vs 2.5 GHz 40% higher turbo clock speed
Much better overclocked clock speed (Air) 3.3 GHz vs 2.28 GHz Around 45% better overclocked clock speed (Air)
Much more l2 cache per core 1 MB/core vs 0.33 MB/core More than 3x more l2 cache per core
Much better overclocked clock speed (Water) 3.1 GHz vs 2 GHz More than 55% better overclocked clock speed (Water)
Newer Dec, 2012 vs Mar, 2012 Release date 9 months later

Benchmarks Real world tests of Xeon E5-2620 vs Opteron 4334

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon E5-2620
10,510
Opteron 4334
10,192

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E5-2620
1,315,000 MB/s
Opteron 4334
2,050,000 MB/s

Specifications Full list of technical specs

summary

Xeon E5-2620  vs
Opteron 4334 
Clock speed 2 GHz 3.1 GHz
Turbo clock speed 2.5 GHz 3.5 GHz
Cores Hexa core Hexa core
Socket type
LGA 2011
C32
Is unlocked Yes No

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
AVX 1.1
SSE2
F16C
MMX
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 95W 95W
Annual home energy cost 22.89 $/year 22.89 $/year
Annual commercial energy cost 83.22 $/year 83.22 $/year
Performance per watt 6.57 pt/W 13.7 pt/W
Typical power consumption 77.19W 77.19W

bus

Architecture QPI HyperTransport 3.0
Transfer rate 7,200 MT/s 6,400 MT/s
Clock speed 3,600 MHz 3,200 MHz

details

Xeon E5-2620  vs
Opteron 4334 
Threads 12 6
L2 cache 2 MB 6 MB
L2 cache per core 0.33 MB/core 1 MB/core
L3 cache 15 MB 8 MB
L3 cache per core 2.5 MB/core 1.33 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 2 2
Clock multiplier 25 17
Operating temperature Unknown - 77.4°C Unknown - 67.7°C

overclocking

Overclock popularity 4 0
Overclocked clock speed 2.28 GHz 3.3 GHz
Overclocked clock speed (Water) 2 GHz 3.1 GHz
Overclocked clock speed (Air) 2.28 GHz 3.3 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
DDR3-1333
DDR3-1066
DDR3-800
DDR3
Channels Quad Channel Dual Channel
Supports ECC Yes Yes
Maximum bandwidth 42,666.64 MB/s 12,800 MB/s
Intel Xeon E5-2620
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AMD Opteron 4334
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