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Differences What are the advantages of each

Front view of Intel Xeon E3-1284L v3

Reasons to consider the
Intel Xeon E3-1284L v3

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Much higher GPU clock speed 750 MHz vs 350 MHz Around 2.2x higher GPU clock speed
Much lower typical power consumption 38.19W vs 73.94W Around 50% lower typical power consumption
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Better performance per watt 5.55 pt/W vs 3.49 pt/W Around 60% better performance per watt
Better CompuBench 1.5 video composition score 15.65 fps vs 13.68 fps Around 15% better CompuBench 1.5 video composition score
Much lower annual home energy cost 11.32 $/year vs 21.92 $/year Around 50% lower annual home energy cost
Much lower annual commercial energy cost 41.17 $/year vs 79.72 $/year Around 50% lower annual commercial energy cost
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 1.8 GHz Around 2.2x higher clock speed
Significantly higher turbo clock speed 4.2 GHz vs 3.2 GHz More than 30% higher turbo clock speed
Significantly newer manufacturing process 14 nm vs 22 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Significantly better turbo clock speed 1,150 MHz vs 1,000 MHz 15% better turbo clock speed
Slightly more l3 cache 8 MB vs 6 MB Around 35% more l3 cache; more data can be stored in the l3 cache for quick access later
More l3 cache per core 2 MB/core vs 1.5 MB/core Around 35% more l3 cache per core
Newer Jul, 2015 vs Oct, 2014 Release date 9 months later

Benchmarks Real world tests of Xeon E3-1284L v3 vs Core i7 6700K

CompuBench 1.5 (Bitcoin mining) Data courtesy CompuBench

Xeon E3-1284L v3
25.27 mHash/s
Core i7 6700K
35.02 mHash/s

CompuBench 1.5 (Face detection)

Xeon E3-1284L v3
14.88 mPixels/s
Core i7 6700K
26.72 mPixels/s

CompuBench 1.5 (Ocean surface simulation) Data courtesy CompuBench

Xeon E3-1284L v3
286.92 fps
Core i7 6700K
302.88 fps

CompuBench 1.5 (T-Rex) Data courtesy CompuBench

Xeon E3-1284L v3
0.67 fps
Core i7 6700K
1.82 fps

CompuBench 1.5 (Video composition) Data courtesy CompuBench

Xeon E3-1284L v3
15.65 fps
Core i7 6700K
13.68 fps

Specifications Full list of technical specs

summary

Xeon E3-1284L v3  vs
Core i7 6700K 
Clock speed 1.8 GHz 4 GHz
Turbo clock speed 3.2 GHz 4.2 GHz
Cores Quad 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

memory controller

Memory controller Built-in Built-in
Memory type
DDR3L-1600
DDR3
Channels Dual Channel Dual Channel
Supports ECC Yes No
Maximum bandwidth 12,800 MB/s 25,600 MB/s
Maximum memory size 32,768 MB 65,536 MB

details

Xeon E3-1284L v3  vs
Core i7 6700K 
Architecture x86-64 x86-64
Threads 8 8
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 6 MB 8 MB
L3 cache per core 1.5 MB/core 2 MB/core
Manufacture process 22 nm 14 nm
Max CPUs 1 1

integrated graphics

GPU GPU GPU
Label Intel® Iris™ Pro Graphics P5200 Intel® HD Graphics 530
Number of displays supported 3 3
GPU clock speed 750 MHz 350 MHz
Turbo clock speed 1,000 MHz 1,150 MHz

power consumption

TDP 47W 91W
Annual home energy cost 11.32 $/year 21.92 $/year
Annual commercial energy cost 41.17 $/year 79.72 $/year
Performance per watt 5.55 pt/W 3.49 pt/W
Typical power consumption 38.19W 73.94W

bus

Architecture DMI 2.0 FSB
Number of links 1 0
Transfer rate 5,000 MT/s 8,000 MT/s
Intel Xeon E3-1284L v3
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Intel Core i7 6700K
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