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Differences What are the advantages of each

Front view of Intel Xeon E5-2690

Reasons to consider the
Intel Xeon E5-2690

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CPUBoss is not aware of any important advantages of the Xeon E5-2690 vs the Xeon E5 2643 v2.

Front view of Intel Xeon E5 2643 v2

Reasons to consider the
Intel Xeon E5 2643 v2

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Much higher clock speed 3.5 GHz vs 2.9 GHz More than 20% higher clock speed
Much more l3 cache 25 MB vs 20 MB 25% more l3 cache; more data can be stored in the l3 cache for quick access later
Supports more RAM 786,432 MB vs 393,216 MB Supports 2x more RAM
More l2 cache 2.5 MB vs 2 MB 25% more l2 cache; more data can be stored in the l2 cache for quick access later
More threads 20 vs 16 4 more threads
Much more l3 cache per core 4.17 MB/core vs 2.5 MB/core More than 65% more l3 cache per core
Newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Significantly more l2 cache per core 0.42 MB/core vs 0.25 MB/core More than 65% more l2 cache per core
Slightly better overclocked clock speed (Air) 3.57 GHz vs 3.53 GHz Almost the same
Better overclocked clock speed (Water) 4.07 GHz vs 3.92 GHz Around 5% better overclocked clock speed (Water)

Benchmarks Real world tests of Xeon E5-2690 vs E5 2643 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 E5-2690
1,975,000 MB/s
Xeon E5 2643 v2
2,060,000 MB/s

Specifications Full list of technical specs

summary

Xeon E5-2690  vs
E5 2643 v2 
Clock speed 2.9 GHz 3.5 GHz
Turbo clock speed 3.8 GHz 3.8 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 135W 130W
Annual home energy cost 32.52 $/year 31.32 $/year
Annual commercial energy cost 118.26 $/year 113.88 $/year
Performance per watt 7.64 pt/W 10.7 pt/W
Typical power consumption 109.69W 105.63W

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 E5-2690  vs
E5 2643 v2 
Architecture x86-64 x86-64
Threads 16 20
L2 cache 2 MB 2.5 MB
L2 cache per core 0.25 MB/core 0.42 MB/core
L3 cache 20 MB 25 MB
L3 cache per core 2.5 MB/core 4.17 MB/core
Manufacture process 32 nm 22 nm
Max CPUs 2 2
Clock multiplier 38 35
Operating temperature Unknown - 72°C Unknown - 74°C

overclocking

Overclocked clock speed 3.53 GHz 3.57 GHz
Overclocked clock speed (Water) 3.92 GHz 4.07 GHz
Overclocked clock speed (Air) 3.53 GHz 3.57 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 Yes
Maximum bandwidth 51,200 MB/s 25,600 MB/s
Maximum memory size 393,216 MB 786,432 MB
Intel Xeon E5-2690
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Intel Xeon E5 2643 v2
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