CPUBoss Review Our evaluation of 6700K vs 4284 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 and single-core performance.

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VS

Differences What are the advantages of each

Front view of Intel Core i7 6700K

Reasons to consider the
Intel Core i7 6700K

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Significantly higher clock speed 4 GHz vs 3 GHz Around 35% 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
Higher turbo clock speed 4.2 GHz vs 3.7 GHz Around 15% higher turbo clock speed
Much better PassMark (Single core) score 2,349 vs 1,116 More than 2x better PassMark (Single core) score
Much better overclocked clock speed (Air) 4.61 GHz vs 3 GHz Around 55% better overclocked clock speed (Air)
Significantly more l3 cache per core 2 MB/core vs 1 MB/core 2x more l3 cache per core
Significantly better PassMark score 11,109 vs 6,660 More than 65% better PassMark score
Newer Jul, 2015 vs Nov, 2011 Release date over 3 years later
Better performance per watt 3.49 pt/W vs 2.09 pt/W More than 65% better performance per watt
Much better overclocked clock speed (Water) 4.77 GHz vs 3 GHz Around 60% better overclocked clock speed (Water)
Front view of AMD Opteron 4284

Reasons to consider the
AMD Opteron 4284

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Much more l2 cache 8 MB vs 1 MB 8x more l2 cache; more data can be stored in the l2 cache for quick access later
Much more l2 cache per core 1 MB/core vs 0.25 MB/core 4x more l2 cache per core
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
Higher Maximum operating temperature 70.5 °C vs 64 °C More than 10% higher Maximum operating temperature

Benchmarks Real world tests of Core i7 6700K vs Opteron 4284

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i7 6700K  vs
Opteron 4284 
Clock speed 4 GHz 3 GHz
Turbo clock speed 4.2 GHz 3.7 GHz
Cores Quad core Octa core
Is unlocked Yes No

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
AVX 2.0

power consumption

TDP 91W 95W
Annual home energy cost 21.92 $/year 22.89 $/year
Annual commercial energy cost 79.72 $/year 83.22 $/year
Performance per watt 3.49 pt/W 2.09 pt/W
Typical power consumption 73.94W 77.19W

bus

Architecture FSB HyperTransport 3.0
Number of links 0 2
Transfer rate 8,000 MT/s 6,400 MT/s

details

Core i7 6700K  vs
Opteron 4284 
Threads 8 8
L2 cache 1 MB 8 MB
L2 cache per core 0.25 MB/core 1 MB/core
L3 cache 8 MB 8 MB
L3 cache per core 2 MB/core 1 MB/core
Manufacture process 14 nm 32 nm
Max CPUs 1 2
Operating temperature Unknown - 64°C Unknown - 70.5°C

overclocking

Overclocked clock speed 4.61 GHz 3 GHz
Overclocked clock speed (Water) 4.77 GHz 3 GHz
Overclocked clock speed (Air) 4.61 GHz 3 GHz

integrated graphics

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

memory controller

Memory controller Built-in Built-in
Memory type
DDR3L-1600
DDR3
Intel Core i7 6700K
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AMD Opteron 4284
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