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Differences What are the advantages of each

Front view of Intel Xeon E5-2680

Reasons to consider the
Intel Xeon E5-2680

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Significantly more l3 cache 20 MB vs 8 MB 2.5x more l3 cache; more data can be stored in the l3 cache for quick access later
Higher clock speed 2.7 GHz vs 2.1 GHz Around 30% higher clock speed
Higher turbo clock speed 3.5 GHz vs 3.2 GHz Around 10% higher turbo clock speed
More cores 8 vs 4 Twice as many cores; run more applications at once
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
More threads 16 vs 8 Twice as many threads
Supports more RAM 393,216 MB vs 65,536 MB Supports 6x more RAM
More l3 cache per core 2.5 MB/core vs 2 MB/core 25% more l3 cache per core
Better overclocked clock speed (Water) 3.5 GHz vs 3.1 GHz Around 15% better overclocked clock speed (Water)
Front view of Intel Xeon E3-1240L v5

Reasons to consider the
Intel Xeon E3-1240L v5

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Much newer manufacturing process 14 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much lower typical power consumption 20.31W vs 105.63W 5.2x lower typical power consumption
Much lower annual home energy cost 6.02 $/year vs 31.32 $/year 5.2x lower annual home energy cost
Much lower annual commercial energy cost 21.9 $/year vs 113.88 $/year 5.2x lower annual commercial energy cost
Newer Oct, 2015 vs Mar, 2012 Release date over 3 years later

Features Key features of the Xeon E5-2680  vs E3-1240L v5 

clock speed

Xeon E5-2680
2.7 GHz

turbo clock speed

Xeon E5-2680
3.5 GHz

L3 cache

overclocked clock speed (air)

Xeon E5-2680
3.14 GHz

overclocked clock speed (water)

Xeon E5-2680
3.5 GHz

Specifications Full list of technical specs

summary

Xeon E5-2680  vs
E3-1240L v5 
Clock speed 2.7 GHz 2.1 GHz
Turbo clock speed 3.5 GHz 3.2 GHz
Cores Octa core Quad core

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 130W 25W
Annual home energy cost 31.32 $/year 6.02 $/year
Annual commercial energy cost 113.88 $/year 21.9 $/year
Typical power consumption 105.63W 20.31W

bus

Architecture QPI FSB
Number of links 2 1
Transfer rate 8,000 MT/s 8,000 MT/s

details

Xeon E5-2680  vs
E3-1240L v5 
Architecture x86-64 x86-64
Threads 16 8
L3 cache 20 MB 8 MB
L3 cache per core 2.5 MB/core 2 MB/core
Manufacture process 32 nm 14 nm
Max CPUs 2 1
Voltage range 0.6 - 1.35V 0.55 - 1.52V

overclocking

Overclocked clock speed 3.14 GHz 3.1 GHz
Overclocked clock speed (Water) 3.5 GHz 3.1 GHz
Overclocked clock speed (Air) 3.14 GHz 3.1 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
DDR3-1600
DDR3-1333
DDR3-1066
DDR3L-1333
DDR3
DDR3-800
Channels Quad Channel Dual Channel
Supports ECC Yes Yes
Maximum bandwidth 51,200 MB/s 12,800 MB/s
Maximum memory size 393,216 MB 65,536 MB
Intel Xeon E5-2680
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Intel Xeon E3-1240L v5
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