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Differences What are the advantages of each

Front view of Intel Xeon Phi 7120D

Reasons to consider the
Intel Xeon Phi 7120D

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Much more l2 cache 30.5 MB vs 1 MB 30.5x more l2 cache; more data can be stored in the l2 cache for quick access later
More threads 244 vs 4 240 more threads
Supports more CPUs in SMP configuration 8 vs 1 7 supports more CPUs in SMP configuration
More advanced architecture x86-64 vs x86 A 64-bit architecture allows more RAM to be installed and accessed by the processor
Significantly newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Newer Jan, 2014 vs Feb, 2013 Release date 11 months later
Front view of Intel Atom Z2520

Reasons to consider the
Intel Atom Z2520

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Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines

Features Key features of the Xeon Phi 7120D  vs Atom Z2520 

clock speed

Xeon Phi 7120D
1.24 GHz
Atom Z2520
1.2 GHz

L2 cache

Xeon Phi 7120D
30.5 MB
Atom Z2520
1 MB

overclocked clock speed (air)

Xeon Phi 7120D
1.24 GHz
Atom Z2520
1.2 GHz

overclocked clock speed (water)

Xeon Phi 7120D
1.24 GHz
Atom Z2520
1.2 GHz

Specifications Full list of technical specs

summary

Xeon Phi 7120D  vs
Atom Z2520 
Clock speed 1.24 GHz 1.2 GHz
Cores 61 cores Dual core

features

Has a NX bit Yes Yes
Has virtualization support No Yes
Instruction set extensions
SSE2
MMX
SSE3
SSE
FMA3
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

Typical power consumption 219.38W N/A

details

Xeon Phi 7120D  vs
Atom Z2520 
Architecture x86-64 x86
Threads 244 4
L2 cache 30.5 MB 1 MB
Manufacture process 22 nm 32 nm
Max CPUs 8 1

overclocking

Overclocked clock speed 1.24 GHz 1.2 GHz
Overclocked clock speed (Water) 1.24 GHz 1.2 GHz
Overclocked clock speed (Air) 1.24 GHz 1.2 GHz

integrated graphics

GPU None GPU
Label N/A Integrated
Number of displays supported N/A 2
GPU clock speed N/A 300 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR2-1066
DDR2
GDDR5
Channels Dual Channel Dual Channel
Intel Xeon Phi 7120D
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Intel Atom Z2520
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Comments

Showing 9 comments.
The Atom chips go pretty well in phones. But it would be nice if they could lower the Xeon Phi's TDP, so we could move up to hexacontacore processors in our mobiles.
Haha :)
"240 more threads" Also: "Slightly more L2 cache" Slightly? Sure.
Heh, wonder how they'd go in an application that one utilises one core. Looks the Xeon Phi uses much faster RAM though.. so.. it'd probably win. Xeon Phi doesn't have virtualisation support though..
How is this a match up in any sort? I think that atom is the superior chip by far...
Phi.
Hahahh....Atom anyday
I mean what are they trying to compare??
61 cores FTW xenon phi 7120D
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