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Differences What are the advantages of each

Front view of Intel Xeon X5675

Reasons to consider the
Intel Xeon X5675

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Significantly higher clock speed 3.06 GHz vs 2.3 GHz Around 35% higher clock speed
Higher turbo clock speed 3.46 GHz vs 2.8 GHz Around 25% higher turbo clock speed
Much better overclocked clock speed (Air) 4.29 GHz vs 2.3 GHz More than 85% better overclocked clock speed (Air)
Lower typical power consumption 77.19W vs 85.31W Around 10% lower typical power consumption
Much better overclocked clock speed (Water) 4.77 GHz vs 2.3 GHz More than 2x better overclocked clock speed (Water)
Lower annual home energy cost 22.89 $/year vs 25.29 $/year Around 10% lower annual home energy cost
Lower annual commercial energy cost 83.22 $/year vs 91.98 $/year Around 10% lower annual commercial energy cost
Front view of Intel E5-2658V4

Reasons to consider the
Intel E5-2658V4

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Much more l3 cache 35 MB vs 12 MB Around 3x more l3 cache; more data can be stored in the l3 cache for quick access later
Much newer manufacturing process 14 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More cores 14 vs 6 8 more cores; run more applications at once
More threads 28 vs 12 16 more threads
Supports more RAM 1,572,864 MB vs 294,912 MB Supports more than 5.2x more RAM
Newer Jan, 2016 vs Feb, 2011 Release date over 4 years later
More l3 cache per core 2.5 MB/core vs 2 MB/core 25% more l3 cache per core
Higher Maximum operating temperature 91 °C vs 81.3 °C More than 10% higher Maximum operating temperature

Features Key features of the Xeon X5675  vs E5-2658V4 

clock speed

Xeon X5675
3.06 GHz
E5-2658V4
2.3 GHz

turbo clock speed

Xeon X5675
3.46 GHz
E5-2658V4
2.8 GHz

L3 cache

Xeon X5675
12 MB
E5-2658V4
35 MB

overclocked clock speed (air)

Xeon X5675
4.29 GHz
E5-2658V4
2.3 GHz

overclocked clock speed (water)

Xeon X5675
4.77 GHz
E5-2658V4
2.3 GHz

TDP

Specifications Full list of technical specs

summary

Xeon X5675  vs
E5-2658V4 
Clock speed 3.06 GHz 2.3 GHz
Turbo clock speed 3.46 GHz 2.8 GHz
Cores Hexa core Processing Cores

features

Has a NX bit Yes Yes
Supports trusted computing 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 95W 105W
Annual home energy cost 22.89 $/year 25.29 $/year
Annual commercial energy cost 83.22 $/year 91.98 $/year
Typical power consumption 77.19W 85.31W

bus

Architecture QPI QPI
Number of links 2 2
Data rate 51,200 MB/s 76,800 MB/s
Transfer rate 6,400 MT/s 9,600 MT/s
Clock speed 3,200 MHz 4,800 MHz

details

Xeon X5675  vs
E5-2658V4 
Architecture x86-64 x86-64
Threads 12 28
L3 cache 12 MB 35 MB
L3 cache per core 2 MB/core 2.5 MB/core
Manufacture process 32 nm 14 nm
Max CPUs 2 2
Operating temperature Unknown - 81.3°C Unknown - 91°C

overclocking

Overclocked clock speed 4.29 GHz 2.3 GHz
Overclocked clock speed (Water) 4.77 GHz 2.3 GHz
Overclocked clock speed (Air) 4.29 GHz 2.3 GHz

integrated graphics

GPU None None
Label N/A N/A
Latest DirectX N/A N/A
Number of displays supported N/A N/A
GPU clock speed N/A N/A
Turbo clock speed N/A N/A
3DMark06 N/A N/A

memory controller

Memory controller Built-in Built-in
Channels Triple Channel Quad Channel
Supports ECC Yes Yes
Maximum memory size 294,912 MB 1,572,864 MB
Intel Xeon X5675
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Intel E5-2658V4
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