CPUBoss Review Our evaluation of X6550 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 performance, single-core performance and value.

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VS
Front view of Intel Core i7 6700K

Intel Core i7 6700K

CPUBoss Winner

Differences What are the advantages of each

Front view of Intel Xeon X6550

Reasons to consider the
Intel Xeon X6550

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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 18 MB vs 8 MB 2.2x 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
More l3 cache per core 2.25 MB/core vs 2 MB/core Around 15% more l3 cache per core
Higher Maximum operating temperature 69 °C vs 64 °C Around 10% higher Maximum operating temperature
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 GHz 2x higher clock speed
Much higher turbo clock speed 4.2 GHz vs 2.4 GHz More than 75% higher turbo clock speed
Much newer manufacturing process 14 nm vs 45 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 better PassMark (Single core) score 2,349 vs 600 Around 4x better PassMark (Single core) score
Much better performance per dollar 0.91 pt/$ vs 0.04 pt/$ More than 24.5x better performance per dollar
Much lower typical power consumption 73.94W vs 105.63W 30% lower typical power consumption
Much better overclocked clock speed (Air) 4.61 GHz vs 2.07 GHz Around 2.2x better overclocked clock speed (Air)
Much better PassMark score 11,109 vs 2,977 Around 3.8x better PassMark score
Newer Jul, 2015 vs Mar, 2010 Release date over 5 years later
Better performance per watt 3.49 pt/W vs 0.73 pt/W More than 4.8x better performance per watt
Much better overclocked clock speed (Water) 4.77 GHz vs 2 GHz Around 2.5x better overclocked clock speed (Water)
Much lower annual home energy cost 21.92 $/year vs 31.32 $/year 30% lower annual home energy cost
Much lower annual commercial energy cost 79.72 $/year vs 113.88 $/year More than 30% lower annual commercial energy cost

Benchmarks Real world tests of Xeon X6550 vs Core i7 6700K

PassMark Data courtesy Passmark

Xeon X6550
2,977
Core i7 6700K
11,109

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon X6550  vs
Core i7 6700K 
Clock speed 2 GHz 4 GHz
Turbo clock speed 2.4 GHz 4.2 GHz
Cores Octa core Quad core

features

Has a NX bit Yes Yes
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 130W 91W
Annual home energy cost 31.32 $/year 21.92 $/year
Annual commercial energy cost 113.88 $/year 79.72 $/year
Performance per watt 0.73 pt/W 3.49 pt/W
Typical power consumption 105.63W 73.94W

details

Xeon X6550  vs
Core i7 6700K 
Threads 16 8
L2 cache 2 MB 1 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 18 MB 8 MB
L3 cache per core 2.25 MB/core 2 MB/core
Manufacture process 45 nm 14 nm
Max CPUs 2 1
Operating temperature Unknown - 69°C Unknown - 64°C

overclocking

Overclocked clock speed 2.07 GHz 4.61 GHz
Overclocked clock speed (Water) 2 GHz 4.77 GHz
Overclocked clock speed (Air) 2.07 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

bus

Architecture QPI FSB
Number of links 4 0
Transfer rate 6,400 MT/s 8,000 MT/s
Intel Xeon X6550
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Intel Core i7 6700K
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