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Differences What are the advantages of each

Front view of Intel Xeon E5-2650

Reasons to consider the
Intel Xeon E5-2650

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More cores 8 vs 2 6 more cores; run more applications at once
Much more l3 cache 20 MB vs 16 MB 25% more l3 cache; more data can be stored in the l3 cache for quick access later
More threads 16 vs 4 12 more threads
Significantly newer manufacturing process 32 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much lower typical power consumption 77.19W vs 121.88W More than 35% lower typical power consumption
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Newer Mar, 2012 vs Aug, 2006 Release date over 5 years later
Much lower annual commercial energy cost 83.22 $/year vs 131.4 $/year More than 35% lower annual commercial energy cost
Much lower annual home energy cost 22.89 $/year vs 36.13 $/year More than 35% lower annual home energy cost
Front view of Intel Xeon 7140N

Reasons to consider the
Intel Xeon 7140N

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Much more l2 cache 16 MB vs 2 MB 8x more l2 cache; more data can be stored in the l2 cache for quick access later
Much higher clock speed 3.33 GHz vs 2 GHz More than 65% higher clock speed
Much more l2 cache per core 8 MB/core vs 0.25 MB/core 32x more l2 cache per core
Supports more CPUs in SMP configuration 32 vs 2 30 supports more CPUs in SMP configuration
Much more l3 cache per core 8 MB/core vs 2.5 MB/core Around 3.2x more l3 cache per core
Much better overclocked clock speed (Air) 3.33 GHz vs 2.55 GHz More than 30% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 3.33 GHz vs 2 GHz More than 65% better overclocked clock speed (Water)

Features Key features of the Xeon E5-2650  vs 7140N 

clock speed

Xeon E5-2650
2 GHz
Xeon 7140N
3.33 GHz

L2 cache

L3 cache

Xeon E5-2650
20 MB
Xeon 7140N
16 MB

overclocked clock speed (air)

Xeon E5-2650
2.55 GHz
Xeon 7140N
3.33 GHz

overclocked clock speed (water)

Xeon E5-2650
2 GHz
Xeon 7140N
3.33 GHz

TDP

Specifications Full list of technical specs

summary

Xeon E5-2650  vs
7140N 
Clock speed 2 GHz 3.33 GHz
Cores Octa core Dual core
Socket type
LGA 2011
604

features

Has a NX bit Yes Yes
Supports trusted computing Yes No
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 95W 150W
Annual home energy cost 22.89 $/year 36.13 $/year
Annual commercial energy cost 83.22 $/year 131.4 $/year
Typical power consumption 77.19W 121.88W

bus

Architecture QPI FSB
Number of links 2 1
Clock speed 4,000 MHz 667 MHz

details

Xeon E5-2650  vs
7140N 
Architecture x86-64 x86-64
Threads 16 4
L2 cache 2 MB 16 MB
L2 cache per core 0.25 MB/core 8 MB/core
L3 cache 20 MB 16 MB
L3 cache per core 2.5 MB/core 8 MB/core
Manufacture process 32 nm 65 nm
Max CPUs 2 32
Clock multiplier 28 20
Voltage range 0.6 - 1.35V 1.1 - 1.35V
Operating temperature Unknown - 77.4°C Unknown - 69°C

overclocking

Overclocked clock speed 2.55 GHz 3.33 GHz
Overclocked clock speed (Water) 2 GHz 3.33 GHz
Overclocked clock speed (Air) 2.55 GHz 3.33 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
Intel Xeon E5-2650
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Intel Xeon 7140N
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