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Differences What are the advantages of each

Front view of Intel Xeon E6510

Reasons to consider the
Intel Xeon E6510

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More l3 cache 12 MB vs 4 MB 3x more l3 cache; more data can be stored in the l3 cache for quick access later
More l2 cache 1 MB vs 0.5 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Much more l3 cache per core 3 MB/core vs 2 MB/core 50% more l3 cache per core
More cores 4 vs 2 Twice as many cores; run more applications at once
More threads 8 vs 4 Twice as many threads
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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Much higher turbo clock speed 3.33 GHz vs 1.73 GHz More than 90% higher turbo clock speed
Significantly higher clock speed 2.66 GHz vs 1.73 GHz Around 55% higher 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 85.31W 3x lower typical power consumption
Much lower annual home energy cost 8.43 $/year vs 25.29 $/year 3x lower annual home energy cost
Much lower annual commercial energy cost 30.66 $/year vs 91.98 $/year 3x lower annual commercial energy cost

Features Key features of the Xeon E6510  vs Core i7 620M 

clock speed

Xeon E6510
1.73 GHz
Core i7 620M
2.66 GHz

turbo clock speed

Xeon E6510
1.73 GHz
Core i7 620M
3.33 GHz

L2 cache

Xeon E6510
1 MB
Core i7 620M
0.5 MB

L3 cache

TDP

Specifications Full list of technical specs

summary

Xeon E6510  vs
Core i7 620M 
Clock speed 1.73 GHz 2.66 GHz
Turbo clock speed 1.73 GHz 3.33 GHz
Cores Quad 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

bus

Architecture QPI DMI
Number of links 4 1
Transfer rate 4,800 MT/s 2,500 MT/s

details

Xeon E6510  vs
Core i7 620M 
Threads 8 4
L2 cache 1 MB 0.5 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 12 MB 4 MB
L3 cache per core 3 MB/core 2 MB/core
Manufacture process 45 nm 32 nm
Max CPUs 2 1

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

power consumption

TDP 105W 35W
Annual home energy cost 25.29 $/year 8.43 $/year
Annual commercial energy cost 91.98 $/year 30.66 $/year
Typical power consumption 85.31W 28.44W
Intel Xeon E6510
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Intel Core i7 620M
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