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Intel Xeon X5670

Front view of Intel Xeon X5670
Front view of Intel Core i7 6700K

Intel Core i7 6700K

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Differences What are the advantages of each

Front view of Intel Xeon X5670

Reasons to consider the
Intel Xeon X5670

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Much better 3DMark06 CPU score 5,794 vs 80.5 Around 72x better 3DMark06 CPU score
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
More l3 cache 12 MB vs 8 MB 50% more l3 cache; more data can be stored in the l3 cache for quick access later
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Much better performance per watt 8.54 pt/W vs 3.49 pt/W Around 2.5x better performance per watt
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Significantly higher Maximum operating temperature 81.3 °C vs 64 °C More than 25% higher Maximum operating temperature
More cores 6 vs 4 2 more cores; run more applications at once
More threads 12 vs 8 4 more threads
Supports more RAM 294,912 MB vs 65,536 MB Supports 4.5x more RAM
More l2 cache per core 0.33 MB/core vs 0.25 MB/core Around 35% more l2 cache per core
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 2.93 GHz More than 35% higher clock speed
Significantly higher turbo clock speed 4.2 GHz vs 3.33 GHz More than 25% higher turbo 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
Significantly better PassMark (Single core) score 2,349 vs 1,347 Around 75% better PassMark (Single core) score
Significantly better performance per dollar 0.91 pt/$ vs 0.56 pt/$ More than 60% better performance per dollar
Newer Jul, 2015 vs Mar, 2010 Release date over 5 years later
Better PassMark score 11,109 vs 8,013 Around 40% better PassMark score
Better overclocked clock speed (Air) 4.61 GHz vs 4.29 GHz More than 5% better overclocked clock speed (Air)
Better overclocked clock speed (Water) 4.77 GHz vs 4.5 GHz More than 5% better overclocked clock speed (Water)

Benchmarks Real world tests of Xeon X5670 vs Core i7 6700K

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon X5670
24,364
Core i7 6700K
17,583

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon X5670
2,341
Core i7 6700K
4,510

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon X5670
1,590,000 MB/s
Core i7 6700K
6,010 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Xeon X5670
13,847
Core i7 6700K
17,169

GeekBench

Xeon X5670
14,780
Core i7 6700K
17,169

3D Mark 06 (CPU)

Xeon X5670
5,794
Core i7 6700K
80.5

PassMark Data courtesy Passmark

Xeon X5670
8,013
Core i7 6700K
11,109

PassMark (Single Core)

Xeon X5670
1,347
Core i7 6700K
2,349

Specifications Full list of technical specs

summary

 Xeon X5670  vs
Core i7 6700K 
Clock speed 2.93 GHz 4 GHz
Turbo clock speed 3.33 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 95W 91W
Annual home energy cost 22.89 $/year 21.92 $/year
Annual commercial energy cost 83.22 $/year 79.72 $/year
Performance per watt 8.54 pt/W 3.49 pt/W
Typical power consumption 77.19W 73.94W

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

details

 Xeon X5670  vs
Core i7 6700K 
Architecture x86-64 x86-64
Threads 12 8
L2 cache 2 MB 1 MB
L2 cache per core 0.33 MB/core 0.25 MB/core
L3 cache 12 MB 8 MB
L3 cache per core 2 MB/core 2 MB/core
Manufacture process 32 nm 14 nm
Max CPUs 2 1
Operating temperature Unknown - 81.3°C Unknown - 64°C

overclocking
Overclocked clock speed 4.29 GHz 4.61 GHz
Overclocked clock speed (Water) 4.5 GHz 4.77 GHz
Overclocked clock speed (Air) 4.29 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
DDR3L-1600
DDR3-1333
DDR3-1066
DDR3
DDR3-800
Channels Triple Channel Dual Channel
Supports ECC Yes No
Maximum bandwidth 31,999.98 MB/s 25,600 MB/s
Maximum memory size 294,912 MB 65,536 MB
Intel Xeon X5670
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Intel Core i7 6700K
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