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Intel Xeon W3670

Front view of Intel Xeon W3670
Front view of Intel Atom E620

Intel Atom E620

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Differences What are the advantages of each

Front view of Intel Xeon W3670

Reasons to consider the
Intel Xeon W3670

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Much higher clock speed 3.2 GHz vs 0.6 GHz More than 5.2x higher clock speed
Much more l2 cache 2 MB vs 0.5 MB 4x more l2 cache; more data can be stored in the l2 cache for quick access later
More advanced architecture x86-64 vs x86 A 64-bit architecture allows more RAM to be installed and accessed by the processor
Much newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better overclocked clock speed (Air) 4.51 GHz vs 0.6 GHz More than 7.5x better overclocked clock speed (Air)
More cores 6 vs 1 5 more cores; run more applications at once
More threads 12 vs 2 10 more threads
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Much better overclocked clock speed (Water) 3.84 GHz vs 0.6 GHz Around 6.5x better overclocked clock speed (Water)
Front view of Intel Atom E620

Reasons to consider the
Intel Atom E620

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Much lower typical power consumption 2.68W vs 105.63W 39.4x lower typical power consumption
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much lower annual home energy cost 0.79 $/year vs 31.32 $/year 39.4x lower annual home energy cost
Much lower annual commercial energy cost 2.89 $/year vs 113.88 $/year 39.4x lower annual commercial energy cost
More l2 cache per core 0.5 MB/core vs 0.33 MB/core More than 50% more l2 cache per core

Features Key features of the Xeon W3670  vs Atom E620 

clock speed

Xeon W3670
3.2 GHz
Atom E620
0.6 GHz

L2 cache

Xeon W3670
2 MB
Atom E620
0.5 MB

overclocked clock speed (air)

Xeon W3670
4.51 GHz
Atom E620
0.6 GHz

overclocked clock speed (water)

Xeon W3670
3.84 GHz
Atom E620
0.6 GHz

TDP

Xeon W3670
130W
Atom E620
3.3W

Specifications Full list of technical specs

summary

 Xeon W3670  vs
Atom E620 
Clock speed 3.2 GHz 0.6 GHz
Cores Hexa core Single core

features
Has a NX bit Yes Yes
Supports trusted computing Yes No
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption
TDP 130W 3.3W
Annual home energy cost 31.32 $/year 0.79 $/year
Annual commercial energy cost 113.88 $/year 2.89 $/year
Typical power consumption 105.63W 2.68W

bus
Architecture QPI FSB
Number of links 1 1
Clock speed 2,400 MHz 2,500 MHz

details

 Xeon W3670  vs
Atom E620 
Architecture x86-64 x86
Threads 12 2
L2 cache 2 MB 0.5 MB
L2 cache per core 0.33 MB/core 0.5 MB/core
Manufacture process 32 nm 45 nm
Max CPUs 1 1
Clock multiplier 24 6
Voltage range 0.8 - 1.38V 0.75 - 0.9V

overclocking
Overclocked clock speed 4.51 GHz 0.6 GHz
Overclocked clock speed (Water) 3.84 GHz 0.6 GHz
Overclocked clock speed (Air) 4.51 GHz 0.6 GHz

integrated graphics
GPU None GPU
Label N/A Integrated
GPU clock speed N/A 320 MHz

memory controller
Memory controller Built-in Built-in
Memory type
DDR3-1066
DDR3
DDR3-800
DDR2-800
DDR2
Channels Triple Channel Single Channel
Supports ECC Yes No
Maximum bandwidth 25,599.99 MB/s 6,400 MB/s
Maximum memory size 24,576 MB 2,048 MB
Intel Xeon W3670
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Intel Atom E620
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