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Intel Xeon E5-2650

Front view of Intel Xeon E5-2650
Front view of Intel Xeon E5-2620

Intel Xeon E5-2620

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Differences What are the advantages of each

Front view of Intel Xeon E5-2650

Reasons to consider the
Intel Xeon E5-2650

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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
Higher turbo clock speed 2.8 GHz vs 2.5 GHz More than 10% higher turbo clock speed
More threads 16 vs 12 4 more threads
Significantly better overclocked clock speed (Air) 2.55 GHz vs 2.28 GHz More than 10% better overclocked clock speed (Air)
Front view of Intel Xeon E5-2620

Reasons to consider the
Intel Xeon E5-2620

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Much better performance per dollar 1.52 pt/$ vs 0.56 pt/$ Around 2.8x better performance per dollar
More l2 cache per core 0.33 MB/core vs 0.25 MB/core Around 35% more l2 cache per core

Benchmarks Real world tests of Xeon E5-2650 vs E5-2620

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon E5-2650
5,977
Xeon E5-2620
10,510

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon E5-2650
1,701
Xeon E5-2620
1,736

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E5-2650
1,350,000 MB/s
Xeon E5-2620
1,315,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Xeon E5-2650
19,887
Xeon E5-2620
12,059

GeekBench (64-bit) Data courtesy Primate Labs

Xeon E5-2650
25,599
Xeon E5-2620
13,391

GeekBench

Xeon E5-2650
25,599
Xeon E5-2620
13,391

PassMark Data courtesy Passmark

Xeon E5-2650
10,190
Xeon E5-2620
7,957

PassMark (Single Core)

Xeon E5-2650
1,297
Xeon E5-2620
1,231

Specifications Full list of technical specs

summary

 Xeon E5-2650  vs
E5-2620 
Clock speed 2 GHz 2 GHz
Turbo clock speed 2.8 GHz 2.5 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
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

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 6.61 pt/W 6.57 pt/W
Typical power consumption 77.19W 77.19W

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 42,666.64 MB/s
Maximum memory size 393,216 MB 393,216 MB

details

 Xeon E5-2650  vs
E5-2620 
Architecture x86-64 x86-64
Threads 16 12
L2 cache 2 MB 2 MB
L2 cache per core 0.25 MB/core 0.33 MB/core
L3 cache 20 MB 15 MB
L3 cache per core 2.5 MB/core 2.5 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 2 2
Clock multiplier 28 25
Voltage range 0.6 - 1.35V 0.6 - 1.35V
Operating temperature Unknown - 77.4°C Unknown - 77.4°C

overclocking
Overclock popularity 0 4
Overclocked clock speed 2.55 GHz 2.28 GHz
Overclocked clock speed (Water) 2 GHz 2 GHz
Overclocked clock speed (Air) 2.55 GHz 2.28 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

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 E5-2650
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Intel Xeon E5-2620
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