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Differences What are the advantages of each

Front view of Intel Xeon L7545

Reasons to consider the
Intel Xeon L7545

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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
Supports more CPUs in SMP configuration 8 vs 1 7 supports more CPUs in SMP configuration
Significantly more l3 cache 18 MB vs 4 MB 4.5x more l3 cache; more data can be stored in the l3 cache for quick access later
More cores 6 vs 2 Three times as many cores; run more applications at once
More threads 12 vs 4 Three times as many threads
Significantly more l3 cache per core 3 MB/core vs 2 MB/core 50% more l3 cache per core
More l2 cache per core 0.33 MB/core vs 0.25 MB/core Around 35% more l2 cache per core
Newer Mar, 2010 vs Jan, 2010 Release date 2 months later
Front view of Intel Core i7 620M

Reasons to consider the
Intel Core i7 620M

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Significantly higher clock speed 2.66 GHz vs 1.87 GHz More than 40% higher clock speed
Higher turbo clock speed 3.33 GHz vs 2.53 GHz More than 30% higher turbo clock speed
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much lower typical power consumption 28.44W vs 77.19W 2.7x lower typical power consumption
Much better overclocked clock speed (Air) 3.34 GHz vs 1.87 GHz Around 80% better overclocked clock speed (Air)
Much lower annual home energy cost 8.43 $/year vs 22.89 $/year 2.7x lower annual home energy cost
Much lower annual commercial energy cost 30.66 $/year vs 83.22 $/year 2.7x lower annual commercial energy cost
Better overclocked clock speed (Water) 2.67 GHz vs 1.87 GHz Around 45% better overclocked clock speed (Water)

Features Key features of the Xeon L7545  vs Core i7 620M 

clock speed

Xeon L7545
1.87 GHz
Core i7 620M
2.66 GHz

turbo clock speed

Xeon L7545
2.53 GHz
Core i7 620M
3.33 GHz

L2 cache

Xeon L7545
2 MB
Core i7 620M
0.5 MB

L3 cache

overclocked clock speed (air)

Xeon L7545
1.87 GHz
Core i7 620M
3.34 GHz

overclocked clock speed (water)

Xeon L7545
1.87 GHz
Core i7 620M
2.67 GHz

Specifications Full list of technical specs

summary

Xeon L7545  vs
Core i7 620M 
Clock speed 1.87 GHz 2.66 GHz
Turbo clock speed 2.53 GHz 3.33 GHz
Cores Hexa core Dual core
Socket type
LGA 1567
BGA 1288

features

Has a NX bit Yes Yes
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 95W 35W
Annual home energy cost 22.89 $/year 8.43 $/year
Annual commercial energy cost 83.22 $/year 30.66 $/year
Typical power consumption 77.19W 28.44W

details

Xeon L7545  vs
Core i7 620M 
Threads 12 4
L2 cache 2 MB 0.5 MB
L2 cache per core 0.33 MB/core 0.25 MB/core
L3 cache 18 MB 4 MB
L3 cache per core 3 MB/core 2 MB/core
Manufacture process 45 nm 32 nm
Max CPUs 8 1

overclocking

Overclocked clock speed 1.87 GHz 3.34 GHz
Overclocked clock speed (Water) 1.87 GHz 2.67 GHz
Overclocked clock speed (Air) 1.87 GHz 3.34 GHz

integrated graphics

GPU None GPU
Label N/A Intel® HD Graphics
Number of displays supported N/A 2
GPU clock speed N/A 500 MHz
Turbo clock speed N/A 766 MHz

bus

Architecture QPI DMI
Number of links 4 1
Transfer rate 5,860 MT/s 2,500 MT/s
Intel Xeon L7545
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Intel Core i7 620M
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