CPUBoss Review Our evaluation of E5-2687W 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

8.2

CPUBoss Score

Combination of all six facets

Winner
Intel Core i7 6700K 

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

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VS

Differences What are the advantages of each

Front view of Intel Xeon E5-2687W

Reasons to consider the
Intel Xeon E5-2687W

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Significantly 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
Significantly more l3 cache 20 MB vs 8 MB 2.5x more l3 cache; more data can be stored in the l3 cache for quick access later
More cores 8 vs 4 Twice as many cores; run more applications at once
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
More threads 16 vs 8 Twice as many threads
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Significantly better performance per watt 7.67 pt/W vs 3.49 pt/W Around 2.2x better performance per watt
Better PassMark score 14,418 vs 11,109 Around 30% better PassMark score
More l3 cache per core 2.5 MB/core vs 2 MB/core 25% more l3 cache per core
Supports more RAM 262,144 MB vs 65,536 MB Supports 4x more RAM
Front view of Intel Core i7 6700K

Reasons to consider the
Intel Core i7 6700K

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Significantly higher clock speed 4 GHz vs 3.1 GHz Around 30% higher clock speed
Much newer manufacturing process 14 nm vs 32 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
Much lower typical power consumption 73.94W vs 121.88W Around 40% lower typical power consumption
Higher turbo clock speed 4.2 GHz vs 3.8 GHz More than 10% higher turbo clock speed
Better PassMark (Single core) score 2,349 vs 1,865 More than 25% better PassMark (Single core) score
Significantly better performance per dollar 0.91 pt/$ vs 0.6 pt/$ More than 50% better performance per dollar
Better overclocked clock speed (Air) 4.61 GHz vs 3.87 GHz Around 20% better overclocked clock speed (Air)
Newer Jul, 2015 vs Mar, 2012 Release date over 3 years later
Much lower annual home energy cost 21.92 $/year vs 36.13 $/year Around 40% lower annual home energy cost
Much lower annual commercial energy cost 79.72 $/year vs 131.4 $/year Around 40% lower annual commercial energy cost
Much better overclocked clock speed (Water) 4.77 GHz vs 3.41 GHz Around 40% better overclocked clock speed (Water)

Benchmarks Real world tests of Xeon E5-2687W vs Core i7 6700K

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 E5-2687W
2,165,000 MB/s
Core i7 6700K
6,010 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

Cinebench R10 32-Bit

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon E5-2687W  vs
Core i7 6700K 
Clock speed 3.1 GHz 4 GHz
Turbo clock speed 3.8 GHz 4.2 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
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 150W 91W
Annual home energy cost 36.13 $/year 21.92 $/year
Annual commercial energy cost 131.4 $/year 79.72 $/year
Performance per watt 7.67 pt/W 3.49 pt/W
Typical power consumption 121.88W 73.94W

bus

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

details

Xeon E5-2687W  vs
Core i7 6700K 
Architecture x86-64 x86-64
Threads 16 8
L2 cache 2 MB 1 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 20 MB 8 MB
L3 cache per core 2.5 MB/core 2 MB/core
Manufacture process 32 nm 14 nm
Max CPUs 2 1
Operating temperature Unknown - 67°C Unknown - 64°C

overclocking

Overclocked clock speed 3.87 GHz 4.61 GHz
Overclocked clock speed (Water) 3.41 GHz 4.77 GHz
Overclocked clock speed (Air) 3.87 GHz 4.61 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
DDR3-1600
DDR3L-1600
DDR3-1333
DDR3-1066
DDR3
DDR3-800
Channels Quad Channel Dual Channel
Supports ECC Yes No
Maximum bandwidth 51,200 MB/s 25,600 MB/s
Maximum memory size 262,144 MB 65,536 MB
Intel Xeon E5-2687W
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Intel Core i7 6700K
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