CPUBoss Review Our evaluation of E5-4620 v2 vs 3820 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

5.4

CPUBoss Score

Combination of all six facets

Winner
Intel Core i7 3820 

CPUBoss recommends the Intel Core i7 3820  based on its value.

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VS

Differences What are the advantages of each

Front view of Intel Xeon E5-4620 v2

Reasons to consider the
Intel Xeon E5-4620 v2

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Much better geekbench 3 Multi-Core score 25,457 vs 12,538 More than 2x better geekbench 3 Multi-Core score
Significantly more l3 cache 20 MB vs 10 MB 2x more l3 cache; more data can be stored in the l3 cache for quick access later
Much lower typical power consumption 77.19W vs 139.6W Around 45% lower typical power consumption
Supports more CPUs in SMP configuration 4 vs 1 3 supports more CPUs in SMP configuration
Significantly newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More cores 8 vs 4 Twice as many cores; run more applications at once
Supports more RAM 786,432 MB vs 65,771.52 MB Supports around 12x more RAM
More threads 16 vs 8 Twice as many threads
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Much lower annual home energy cost 22.89 $/year vs 49.49 $/year 2.2x lower annual home energy cost
Much lower annual commercial energy cost 83.22 $/year vs 138.93 $/year More than 40% lower annual commercial energy cost
Higher Maximum operating temperature 75 °C vs 66.8 °C More than 10% higher Maximum operating temperature
Newer Jan, 2014 vs Feb, 2012 Release date over 1 years later
Front view of Intel Core i7 3820

Reasons to consider the
Intel Core i7 3820

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Much better performance per dollar 4.08 pt/$ vs 0.21 pt/$ More than 19.8x better performance per dollar
Significantly higher clock speed 3.6 GHz vs 2.6 GHz Around 40% higher clock speed
Higher turbo clock speed 3.8 GHz vs 3 GHz More than 25% higher turbo clock speed
Significantly better geekbench 3 single core score 3,098 vs 2,175 More than 40% better geekbench 3 single core score
Better performance per watt 6.18 pt/W vs 4.06 pt/W More than 50% better performance per watt

Benchmarks Real world tests of Xeon E5-4620 v2 vs Core i7 3820

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 E5-4620 v2
143,500 MB/s
Core i7 3820
2,500,000 MB/s

Specifications Full list of technical specs

summary

Xeon E5-4620 v2  vs
Core i7 3820 
Clock speed 2.6 GHz 3.6 GHz
Turbo clock speed 3 GHz 3.8 GHz
Cores Octa core Quad core

features

Has a NX bit Yes Yes
Supports trusted computing Yes No
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 95W 130W
Annual home energy cost 22.89 $/year 49.49 $/year
Annual commercial energy cost 83.22 $/year 138.93 $/year
Performance per watt 4.06 pt/W 6.18 pt/W
Typical power consumption 77.19W 139.6W

bus

Architecture QPI DMI 2.0
Number of links 2 1
Transfer rate 7,200 MT/s 5,000 MT/s

details

Xeon E5-4620 v2  vs
Core i7 3820 
Architecture x86-64 x86-64
Threads 16 8
L3 cache 20 MB 10 MB
L3 cache per core 2.5 MB/core 2.5 MB/core
Manufacture process 22 nm 32 nm
Max CPUs 4 1
Voltage range 0.65 - 1.3V 0.6 - 1.35V
Operating temperature Unknown - 75°C Unknown - 66.8°C

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
DDR3-1600
DDR3-1333
DDR3-1066
DDR3
DDR3-800
Channels Quad Channel Quad Channel
Supports ECC Yes No
Maximum bandwidth 51,200 MB/s 51,200 MB/s
Maximum memory size 786,432 MB 65,771.52 MB
Intel Xeon E5-4620 v2
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Intel Core i7 3820
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