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Differences What are the advantages of each

Front view of Intel Xeon E5-2670

Reasons to consider the
Intel Xeon E5-2670

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Much more l3 cache 20 MB vs 15 MB Around 35% more l3 cache; more data can be stored in the l3 cache for quick access later
Significantly higher turbo clock speed 3.3 GHz vs 2.8 GHz Around 20% higher turbo clock speed
Significantly higher clock speed 2.6 GHz vs 2.4 GHz Around 10% 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
Much higher Maximum operating temperature 80 °C vs 63 °C More than 25% higher Maximum operating temperature
More threads 16 vs 12 4 more threads
Much better overclocked clock speed (Air) 3.13 GHz vs 2.4 GHz More than 30% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 3.08 GHz vs 2.4 GHz Around 30% better overclocked clock speed (Water)
Front view of Intel Xeon E5 2630L v2

Reasons to consider the
Intel Xeon E5 2630L v2

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Much better performance per dollar 1.2 pt/$ vs 0.53 pt/$ More than 2.2x better performance per dollar
Supports more RAM 786,432 MB vs 393,216 MB Supports 2x more RAM
Much lower typical power consumption 48.75W vs 93.44W Around 50% lower typical power consumption
Newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much lower annual commercial energy cost 52.56 $/year vs 100.74 $/year Around 50% lower annual commercial energy cost
Much lower annual home energy cost 14.45 $/year vs 27.7 $/year Around 50% lower annual home energy cost
Newer Jul, 2013 vs Mar, 2012 Release date over 1 years later

Benchmarks Real world tests of Xeon E5-2670 vs E5 2630L v2

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E5-2670
1,740,000 MB/s
Xeon E5 2630L v2
1,050,000 MB/s

Specifications Full list of technical specs

summary

Xeon E5-2670  vs
E5 2630L v2 
Clock speed 2.6 GHz 2.4 GHz
Turbo clock speed 3.3 GHz 2.8 GHz
Cores Octa core Hexa core
Socket type
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 115W 60W
Annual home energy cost 27.7 $/year 14.45 $/year
Annual commercial energy cost 100.74 $/year 52.56 $/year
Performance per watt 7.31 pt/W 12.21 pt/W
Typical power consumption 93.44W 48.75W

bus

Architecture QPI QPI
Number of links 2 2
Data rate 64,000 MB/s 57,600 MB/s
Transfer rate 8,000 MT/s 7,200 MT/s
Clock speed 4,000 MHz 3,600 MHz

details

Xeon E5-2670  vs
E5 2630L v2 
Architecture x86-64 x86-64
Threads 16 12
L2 cache 2 MB 1.5 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 20 MB 15 MB
L3 cache per core 2.5 MB/core 2.5 MB/core
Manufacture process 32 nm 22 nm
Max CPUs 2 2
Clock multiplier 33 24
Operating temperature Unknown - 80°C Unknown - 63°C

overclocking

Overclocked clock speed 3.13 GHz 2.4 GHz
Overclocked clock speed (Water) 3.08 GHz 2.4 GHz
Overclocked clock speed (Air) 3.13 GHz 2.4 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
DDR3
DDR3-800
Channels Quad Channel Quad Channel
Supports ECC Yes No
Maximum bandwidth 51,200 MB/s 25,600 MB/s
Maximum memory size 393,216 MB 786,432 MB
Intel Xeon E5-2670
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Intel Xeon E5 2630L v2
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