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Differences What are the advantages of each

Front view of Intel Xeon X7550

Reasons to consider the
Intel Xeon X7550

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More threads 16 vs 8 Twice as many threads
Front view of Intel Xeon E7-8837

Reasons to consider the
Intel Xeon E7-8837

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Much higher clock speed 2.66 GHz vs 2 GHz Around 35% higher clock speed
Much more l3 cache 24 MB vs 18 MB Around 35% more l3 cache; more data can be stored in the l3 cache for quick access later
Significantly higher turbo clock speed 2.8 GHz vs 2.4 GHz More than 15% higher turbo clock speed
Newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Significantly more l3 cache per core 3 MB/core vs 2.25 MB/core Around 35% more l3 cache per core
Significantly better overclocked clock speed (Air) 2.67 GHz vs 2.4 GHz More than 10% better overclocked clock speed (Air)
Significantly better overclocked clock speed (Water) 2.67 GHz vs 2.4 GHz More than 10% better overclocked clock speed (Water)
Newer Apr, 2011 vs Mar, 2010 Release date a year later

Features Key features of the Xeon X7550  vs E7-8837 

clock speed

Xeon X7550
2 GHz
Xeon E7-8837
2.66 GHz

turbo clock speed

Xeon X7550
2.4 GHz
Xeon E7-8837
2.8 GHz

L2 cache

L3 cache

Xeon X7550
18 MB
Xeon E7-8837
24 MB

overclocked clock speed (air)

Xeon X7550
2.4 GHz
Xeon E7-8837
2.67 GHz

overclocked clock speed (water)

Xeon X7550
2.4 GHz
Xeon E7-8837
2.67 GHz

Specifications Full list of technical specs

summary

Xeon X7550  vs
E7-8837 
Clock speed 2 GHz 2.66 GHz
Turbo clock speed 2.4 GHz 2.8 GHz
Cores Octa core Octa core
Socket type
LGA 1567

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 130W 130W
Annual home energy cost 31.32 $/year 31.32 $/year
Annual commercial energy cost 113.88 $/year 113.88 $/year
Typical power consumption 105.63W 105.63W

bus

Architecture QPI QPI
Number of links 4 1
Data rate 102,400 MB/s 25,600 MB/s
Transfer rate 6,400 MT/s 6,400 MT/s
Clock speed 3,200 MHz 3,200 MHz

details

Xeon X7550  vs
E7-8837 
Threads 16 8
L2 cache 2 MB 2 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 18 MB 24 MB
L3 cache per core 2.25 MB/core 3 MB/core
Manufacture process 45 nm 32 nm
Max CPUs 8 8
Operating temperature Unknown - 69°C Unknown - 69°C

overclocking

Overclocked clock speed 2.4 GHz 2.67 GHz
Overclocked clock speed (Water) 2.4 GHz 2.67 GHz
Overclocked clock speed (Air) 2.4 GHz 2.67 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
Memory type
DDR3
DDR
Intel Xeon X7550
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Intel Xeon E7-8837
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