CPUBoss Review Our evaluation of E5-2620 v3 vs 6700K 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

8.3

CPUBoss Score

Combination of all six facets

Winner
Intel Core i7 6700K 

CPUBoss recommends the Intel Core i7 6700K  based on its performance and single-core performance.

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VS

Differences What are the advantages of each

Front view of Intel Xeon E5-2620 v3

Reasons to consider the
Intel Xeon E5-2620 v3

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Much better performance per dollar 2.75 pt/$ vs 1.08 pt/$ More than 2.5x better performance per dollar
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
Much better performance per watt 12.63 pt/W vs 3.45 pt/W Around 3.8x better performance per watt
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Higher Maximum operating temperature 72.6 °C vs 64 °C Around 15% higher Maximum operating temperature
More l3 cache per core 2.5 MB/core vs 2 MB/core 25% more l3 cache per core
Supports more RAM 786,432 MB vs 65,536 MB Supports 12x more RAM
More cores 6 vs 4 2 more cores; run more applications at once
More threads 12 vs 8 4 more threads
Front view of Intel Core i7 6700K

Reasons to consider the
Intel Core i7 6700K

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Much higher clock speed 4 GHz vs 2.4 GHz More than 65% higher clock speed
Significantly higher turbo clock speed 4.2 GHz vs 3.2 GHz More than 30% higher turbo clock speed
Much newer manufacturing process 14 nm vs 22 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Better PassMark (Single core) score 2,349 vs 1,683 Around 40% better PassMark (Single core) score
Better CompuBench 1.5 ocean surface simulation score 300.87 fps vs 194.02 fps More than 55% better CompuBench 1.5 ocean surface simulation score
Better overclocked clock speed (Air) 4.64 GHz vs 2.67 GHz Around 75% better overclocked clock speed (Air)
Newer Jul, 2015 vs Jul, 2014 Release date a year later
Better overclocked clock speed (Water) 4.76 GHz vs 2.87 GHz More than 65% better overclocked clock speed (Water)

Benchmarks Real world tests of Xeon E5-2620 v3 vs Core i7 6700K

CompuBench 1.5 (Ocean surface simulation) Data courtesy CompuBench

Xeon E5-2620 v3
194.02 fps
Core i7 6700K
300.87 fps

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 E5-2620 v3
2,750,000 MB/s
Core i7 6700K
6,010 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon E5-2620 v3  vs
Core i7 6700K 
Clock speed 2.4 GHz 4 GHz
Turbo clock speed 3.2 GHz 4.2 GHz
Cores Hexa 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
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 85W 91W
Annual home energy cost 20.48 $/year 21.92 $/year
Annual commercial energy cost 74.46 $/year 79.72 $/year
Performance per watt 12.63 pt/W 3.45 pt/W
Typical power consumption 69.06W 73.94W

bus

Architecture QPI FSB
Number of links 2 0
Transfer rate 8,000 MT/s 8,000 MT/s

details

Xeon E5-2620 v3  vs
Core i7 6700K 
Architecture x86-64 x86-64
Threads 12 8
L3 cache 15 MB 8 MB
L3 cache per core 2.5 MB/core 2 MB/core
Manufacture process 22 nm 14 nm
Max CPUs 2 1
Operating temperature Unknown - 72.6°C Unknown - 64°C

overclocking

Overclocked clock speed 2.67 GHz 4.64 GHz
Overclocked clock speed (Water) 2.87 GHz 4.76 GHz
Overclocked clock speed (Air) 2.67 GHz 4.64 GHz

integrated graphics

GPU None GPU
Label N/A Intel® HD Graphics 530
Number of displays supported N/A 3
GPU clock speed N/A 350 MHz
Turbo clock speed N/A 1,150 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3L-1600
DDR
Channels Quad Channel Dual Channel
Supports ECC Yes No
Maximum bandwidth 6,400 MB/s 25,600 MB/s
Maximum memory size 786,432 MB 65,536 MB
Intel Xeon E5-2620 v3
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Intel Core i7 6700K
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