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Differences What are the advantages of each

Front view of Intel Xeon E5-2640 v3

Reasons to consider the
Intel Xeon E5-2640 v3

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Much higher clock speed 2.6 GHz vs 1.8 GHz Around 45% higher clock speed
Significantly higher turbo clock speed 3.4 GHz vs 2.9 GHz More than 15% higher turbo clock speed
Much better performance per dollar 2.22 pt/$ vs 0.45 pt/$ Around 5x better performance per dollar
Much better overclocked clock speed (Air) 2.6 GHz vs 2.07 GHz More than 25% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 2.6 GHz vs 1.8 GHz Around 45% better overclocked clock speed (Water)
Front view of Intel Xeon E5-2630L v3

Reasons to consider the
Intel Xeon E5-2630L v3

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Significantly lower typical power consumption 44.69W vs 73.13W Around 40% lower typical power consumption
Significantly lower annual commercial energy cost 48.18 $/year vs 78.84 $/year Around 40% lower annual commercial energy cost
Significantly lower annual home energy cost 13.25 $/year vs 21.68 $/year Around 40% lower annual home energy cost

Benchmarks Real world tests of Xeon E5-2640 v3 vs E5-2630L v3

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 E5-2640 v3
3,450,000 MB/s
Xeon E5-2630L v3
1,730 MB/s

Specifications Full list of technical specs

summary

Xeon E5-2640 v3  vs
E5-2630L v3 
Clock speed 2.6 GHz 1.8 GHz
Turbo clock speed 3.4 GHz 2.9 GHz
Cores Octa core Octa core

features

Has a NX bit Yes Yes
Supports trusted computing Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
AES
AVX
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 90W 55W
Annual home energy cost 21.68 $/year 13.25 $/year
Annual commercial energy cost 78.84 $/year 48.18 $/year
Performance per watt 24.65 pt/W 5.04 pt/W
Typical power consumption 73.13W 44.69W

bus

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

details

Xeon E5-2640 v3  vs
E5-2630L v3 
Architecture x86-64 x86-64
Threads 16 16
L3 cache 20 MB 20 MB
L3 cache per core 2.5 MB/core 2.5 MB/core
Manufacture process 22 nm 22 nm
Max CPUs 2 2
Operating temperature Unknown - 74.3°C Unknown - 60.4°C

overclocking

Overclocked clock speed 2.6 GHz 2.07 GHz
Overclocked clock speed (Water) 2.6 GHz 1.8 GHz
Overclocked clock speed (Air) 2.6 GHz 2.07 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
DDR
Channels Quad Channel Quad Channel
Supports ECC Yes Yes
Maximum bandwidth 6,400 MB/s 6,400 MB/s
Maximum memory size 786,432 MB 786,432 MB
Intel Xeon E5-2640 v3
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Intel Xeon E5-2630L v3
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