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Differences What are the advantages of each

Front view of Intel Xeon E7-2820

Reasons to consider the
Intel Xeon E7-2820

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Much higher turbo clock speed 2.27 GHz vs None Compared to all cpus, 2.27 GHz turbo clock speed is just OK
Significantly higher clock speed 2 GHz vs 1 GHz 2x higher clock speed
Significantly more l2 cache 2 MB vs 1 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
More threads 16 vs 2 14 more threads
More cores 8 vs 2 6 more cores; run more applications at once
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Front view of AMD E1 2100

Reasons to consider the
AMD E1 2100

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Much lower typical power consumption 7.31W vs 85.31W 11.7x lower typical power consumption
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Newer manufacturing process 28 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much higher Maximum operating temperature 90 °C vs 64 °C More than 40% higher Maximum operating temperature
More l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
Much lower annual home energy cost 2.17 $/year vs 25.29 $/year 11.7x lower annual home energy cost
Much lower annual commercial energy cost 7.88 $/year vs 91.98 $/year 11.7x lower annual commercial energy cost
Newer Apr, 2013 vs Apr, 2011 Release date over 2 years later

Features Key features of the Xeon E7-2820  vs E1 2100 

clock speed

Xeon E7-2820
2 GHz
E1 2100
1 GHz

L2 cache

E1 2100
1 MB

TDP

Specifications Full list of technical specs

summary

Xeon E7-2820  vs
E1 2100 
Clock speed 2 GHz 1 GHz
Turbo clock speed 2.27 GHz None
Cores Octa core Dual core

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
F16C
MMX
SSE4
AVX
SSE3
SSE
BMI1
AMD64
SSE4.1
SSE4.2
AMD-V
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

memory controller

Memory controller Built-in Built-in
Memory type
DDR3
DDR3L-1333
DDR

details

Xeon E7-2820  vs
E1 2100 
Architecture x86-64 x86-64
Threads 16 2
L2 cache 2 MB 1 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
Manufacture process 32 nm 28 nm
Max CPUs 2 1
Operating temperature Unknown - 64°C Unknown - 90°C

integrated graphics

GPU None GPU
Label N/A Radeon™ HD 8210
Latest DirectX N/A 11.0
GPU clock speed N/A 300 MHz

power consumption

TDP 105W 9W
Annual home energy cost 25.29 $/year 2.17 $/year
Annual commercial energy cost 91.98 $/year 7.88 $/year
Typical power consumption 85.31W 7.31W
Intel Xeon E7-2820
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AMD E1 2100
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