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Differences What are the advantages of each

Front view of Intel Xeon 7140M

Reasons to consider the
Intel Xeon 7140M

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Much more l2 cache 16 MB vs 1 MB 16x more l2 cache; more data can be stored in the l2 cache for quick access later
Supports more CPUs in SMP configuration 32 vs 1 31 supports more CPUs in SMP configuration
Much more l2 cache per core 8 MB/core vs 0.5 MB/core 16x more l2 cache per core
Significantly higher clock speed 3.4 GHz vs 2.5 GHz More than 35% higher clock speed
Much more l3 cache per core 8 MB/core vs 1.5 MB/core More than 5.2x more l3 cache per core
Significantly more l3 cache 16 MB vs 3 MB More than 5.2x more l3 cache; more data can be stored in the l3 cache for quick access later
Better overclocked clock speed (Air) 3.4 GHz vs 3.05 GHz More than 10% better overclocked clock speed (Air)
Significantly better overclocked clock speed (Water) 3.4 GHz vs 2.5 GHz More than 35% better overclocked clock speed (Water)
Front view of Intel Core i5 2520M

Reasons to consider the
Intel Core i5 2520M

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Much newer manufacturing process 32 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much lower typical power consumption 28.44W vs 121.88W 4.3x lower typical power consumption
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much higher Maximum operating temperature 100 °C vs 69 °C Around 45% higher Maximum operating temperature
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Newer Feb, 2011 vs Aug, 2006 Release date over 4 years later
Much lower annual home energy cost 8.43 $/year vs 36.13 $/year 4.3x lower annual home energy cost
Much lower annual commercial energy cost 30.66 $/year vs 131.4 $/year 4.3x lower annual commercial energy cost

Features Key features of the Xeon 7140M  vs Core i5 2520M 

clock speed

Xeon 7140M
3.4 GHz
Core i5 2520M
2.5 GHz

L2 cache

L3 cache

overclocked clock speed (air)

Xeon 7140M
3.4 GHz
Core i5 2520M
3.05 GHz

overclocked clock speed (water)

Xeon 7140M
3.4 GHz
Core i5 2520M
2.5 GHz

TDP

Specifications Full list of technical specs

summary

Xeon 7140M  vs
Core i5 2520M 
Clock speed 3.4 GHz 2.5 GHz
Cores Dual core Dual core
Socket type
604
rPGA 988B

features

Has a NX bit Yes Yes
Supports trusted computing No 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 150W 35W
Annual home energy cost 36.13 $/year 8.43 $/year
Annual commercial energy cost 131.4 $/year 30.66 $/year
Typical power consumption 121.88W 28.44W

details

Xeon 7140M  vs
Core i5 2520M 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 16 MB 1 MB
L2 cache per core 8 MB/core 0.5 MB/core
L3 cache 16 MB 3 MB
L3 cache per core 8 MB/core 1.5 MB/core
Manufacture process 65 nm 32 nm
Max CPUs 32 1
Clock multiplier 17 25
Operating temperature Unknown - 69°C Unknown - 100°C

overclocking

Overclocked clock speed 3.4 GHz 3.05 GHz
Overclocked clock speed (Water) 3.4 GHz 2.5 GHz
Overclocked clock speed (Air) 3.4 GHz 3.05 GHz

integrated graphics

GPU None GPU
Label N/A HD Graphics 3000
Number of displays supported N/A 2
GPU clock speed N/A 650 MHz
Turbo clock speed N/A 1,300 MHz

bus

Architecture FSB DMI
Number of links 1 1
Intel Xeon 7140M
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Intel Core i5 2520M
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