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Differences What are the advantages of each

Front view of Intel Xeon E7-4820

Reasons to consider the
Intel Xeon E7-4820

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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
Significantly more l3 cache 18 MB vs 8 MB 2.2x more l3 cache; more data can be stored in the l3 cache for quick access later
Supports more CPUs in SMP configuration 4 vs 1 3 supports more CPUs in SMP configuration
Supports more RAM 2,097,152 MB vs 32,768 MB Supports 64x more RAM
Significantly lower typical power consumption 85.31W vs 114.5W More than 25% lower typical power consumption
More cores 8 vs 4 Twice as many cores; run more applications at once
More threads 16 vs 8 Twice as many threads
Much lower annual home energy cost 25.29 $/year vs 41.87 $/year Around 40% lower annual home energy cost
More l3 cache per core 2.25 MB/core vs 2 MB/core Around 15% more l3 cache per core
Lower annual commercial energy cost 91.98 $/year vs 112.13 $/year Around 20% lower annual commercial energy cost
Newer Apr, 2011 vs Jan, 2011 Release date 3 months later
Front view of Intel Core i7 2600

Reasons to consider the
Intel Core i7 2600

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Much higher clock speed 3.4 GHz vs 2 GHz 70% higher clock speed
Much higher turbo clock speed 3.8 GHz vs 2.27 GHz More than 65% higher turbo clock speed
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Higher Maximum operating temperature 72.6 °C vs 64 °C Around 15% higher Maximum operating temperature

Features Key features of the Xeon E7-4820  vs Core i7 2600 

clock speed

Xeon E7-4820
2 GHz
Core i7 2600
3.4 GHz

turbo clock speed

Xeon E7-4820
2.27 GHz
Core i7 2600
3.8 GHz

L2 cache

L3 cache

TDP

Specifications Full list of technical specs

summary

Xeon E7-4820  vs
Core i7 2600 
Clock speed 2 GHz 3.4 GHz
Turbo clock speed 2.27 GHz 3.8 GHz
Cores Octa core Quad core
Socket type
LGA 1567
LGA 1155

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 105W 95W
Annual home energy cost 25.29 $/year 41.87 $/year
Annual commercial energy cost 91.98 $/year 112.13 $/year
Typical power consumption 85.31W 114.5W

bus

Architecture QPI DMI
Number of links 1 1
Data rate 23,464 MB/s 8 MB/s
Transfer rate 5,860 MT/s 5,000 MT/s

details

Xeon E7-4820  vs
Core i7 2600 
Architecture x86-64 x86-64
Threads 16 8
L2 cache 2 MB 1 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 18 MB 8 MB
L3 cache per core 2.25 MB/core 2 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 4 1
Clock multiplier 15 34
Operating temperature Unknown - 64°C Unknown - 72.6°C

integrated graphics

GPU None GPU
Label N/A Intel® HD Graphics 2000
Latest DirectX N/A 10.x
Number of displays supported N/A 2
GPU clock speed N/A 850 MHz
Turbo clock speed N/A 1,350 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1333
DDR3-1066
DDR3
DDR
Channels Quad Channel Dual Channel
Supports ECC Yes No
Maximum bandwidth 25,600 MB/s 21,333.32 MB/s
Maximum memory size 2,097,152 MB 32,768 MB
Intel Xeon E7-4820
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Intel Core i7 2600
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