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Differences What are the advantages of each

Front view of Intel Xeon L5640

Reasons to consider the
Intel Xeon L5640

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Much higher turbo clock speed 2.8 GHz vs 2 GHz Around 40% higher turbo clock speed
Significantly higher clock speed 2.26 GHz vs 2 GHz Around 15% higher clock speed
More l2 cache 2 MB vs 1.5 MB Around 35% more l2 cache; more data can be stored in the l2 cache for quick access later
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 Xeon E5 2618L v2

Reasons to consider the
Intel Xeon E5 2618L v2

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Supports more RAM 786,432 MB vs 294,912 MB Supports around 2.8x more RAM
Significantly more l3 cache 15 MB vs 12 MB 25% more l3 cache; more data can be stored in the l3 cache for quick access later
Much higher Maximum operating temperature 93 °C vs 69.4 °C Around 35% higher Maximum operating temperature
Newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More l3 cache per core 2.5 MB/core vs 2 MB/core 25% more l3 cache per core
Lower typical power consumption 40.63W vs 48.75W More than 15% lower typical power consumption
Newer Jul, 2013 vs Mar, 2010 Release date over 3 years later
Lower annual commercial energy cost 43.8 $/year vs 52.56 $/year More than 15% lower annual commercial energy cost
Lower annual home energy cost 12.04 $/year vs 14.45 $/year More than 15% lower annual home energy cost

Features Key features of the Xeon L5640  vs E5 2618L v2 

clock speed

Xeon L5640
2.26 GHz

turbo clock speed

L2 cache

L3 cache

Specifications Full list of technical specs

summary

Xeon L5640  vs
E5 2618L v2 
Clock speed 2.26 GHz 2 GHz
Turbo clock speed 2.8 GHz 2 GHz
Cores Hexa core Hexa core
Socket type
LGA 1366
LGA 2011

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
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 60W 50W
Annual home energy cost 14.45 $/year 12.04 $/year
Annual commercial energy cost 52.56 $/year 43.8 $/year
Typical power consumption 48.75W 40.63W

bus

Architecture QPI QPI
Number of links 2 2
Data rate 46,928 MB/s 51,200 MB/s
Transfer rate 5,860 MT/s 6,400 MT/s
Clock speed 2,930 MHz 3,200 MHz

details

Xeon L5640  vs
E5 2618L v2 
Architecture x86-64 x86-64
Threads 12 12
L2 cache 2 MB 1.5 MB
L2 cache per core 0.33 MB/core 0.25 MB/core
L3 cache 12 MB 15 MB
L3 cache per core 2 MB/core 2.5 MB/core
Manufacture process 32 nm 22 nm
Max CPUs 2 2
Clock multiplier 17 20
Operating temperature Unknown - 69.4°C Unknown - 93°C

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
DDR3-1333
DDR3-1066
DDR3-800
DDR3
Channels Triple Channel Quad Channel
Supports ECC Yes No
Maximum bandwidth 31,999.98 MB/s 25,600 MB/s
Maximum memory size 294,912 MB 786,432 MB
Intel Xeon L5640
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Intel Xeon E5 2618L v2
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