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Intel Xeon E5-4640

Front view of Intel Xeon E5-4640
Front view of Intel Xeon E5-4620 v2

Intel Xeon E5-4620 v2

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Differences What are the advantages of each

Front view of Intel Xeon E5-4640

Reasons to consider the
Intel Xeon E5-4640

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CPUBoss is not aware of any important advantages of the E5-4640 vs the E5-4620 v2.
Front view of Intel Xeon E5-4620 v2

Reasons to consider the
Intel Xeon E5-4620 v2

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Significantly higher clock speed 2.6 GHz vs 2.4 GHz Around 10% higher clock speed
Supports more RAM 786,432 MB vs 393,216 MB Supports 2x more RAM
Higher turbo clock speed 3 GHz vs 2.8 GHz More than 5% higher turbo clock speed
Newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Newer Jan, 2014 vs May, 2012 Release date over 1 years later

Benchmarks Real world tests of Xeon E5-4640 vs E5-4620 v2

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon E5-4640
5,597.5
Xeon E5-4620 v2
25,457

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon E5-4640
1,573
Xeon E5-4620 v2
2,175

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E5-4640
103.35 MB/s
Xeon E5-4620 v2
143,500 MB/s

Specifications Full list of technical specs

summary

 Xeon E5-4640  vs
E5-4620 v2 
Clock speed 2.4 GHz 2.6 GHz
Turbo clock speed 2.8 GHz 3 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
SSE2
MMX
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

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 Yes
Maximum bandwidth 51,200 MB/s 51,200 MB/s
Maximum memory size 393,216 MB 786,432 MB

details

 Xeon E5-4640  vs
E5-4620 v2 
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 32 nm 22 nm
Max CPUs 4 4
Voltage range 0.6 - 1.35V 0.65 - 1.3V

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

power consumption
TDP 95W 95W
Annual home energy cost 22.89 $/year 22.89 $/year
Annual commercial energy cost 83.22 $/year 83.22 $/year
Performance per watt 1.83 pt/W 4.06 pt/W
Typical power consumption 77.19W 77.19W

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
Intel Xeon E5-4640
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Intel Xeon E5-4620 v2
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