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Differences What are the advantages of each

Front view of Intel Xeon E7420

Reasons to consider the
Intel Xeon E7420

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Supports more CPUs in SMP configuration 32 vs 1 31 supports more CPUs in SMP configuration
Much more l2 cache 8 MB vs 4 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Much newer manufacturing process 45 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More cores 4 vs 2 Twice as many cores; run more applications at once
Newer Sep, 2008 vs Aug, 2006 Release date over 2 years later
More threads 4 vs 2 Twice as many threads
Front view of Intel Core2 Duo T7600

Reasons to consider the
Intel Core2 Duo T7600

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Much lower typical power consumption 27.63W vs 73.13W 2.6x lower typical power consumption
Higher clock speed 2.33 GHz vs 2.13 GHz Around 10% higher clock speed
Better overclocked clock speed (Air) 2.76 GHz vs 2.13 GHz Around 30% better overclocked clock speed (Air)
Much lower annual home energy cost 8.19 $/year vs 21.68 $/year 2.6x lower annual home energy cost
Much lower annual commercial energy cost 29.78 $/year vs 78.84 $/year 2.6x lower annual commercial energy cost
Slightly better overclocked clock speed (Water) 2.33 GHz vs 2.13 GHz Around 10% better overclocked clock speed (Water)

Features Key features of the Xeon E7420  vs Core2 Duo T7600 

clock speed

Xeon E7420
2.13 GHz
Core2 Duo T7600
2.33 GHz

L2 cache

overclocked clock speed (air)

Xeon E7420
2.13 GHz
Core2 Duo T7600
2.76 GHz

overclocked clock speed (water)

Xeon E7420
2.13 GHz
Core2 Duo T7600
2.33 GHz

Specifications Full list of technical specs

summary

Xeon E7420  vs
Core2 Duo T7600 
Clock speed 2.13 GHz 2.33 GHz
Cores Quad core Dual core
Socket type
604
479

features

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

power consumption

TDP 90W 34W
Annual home energy cost 21.68 $/year 8.19 $/year
Annual commercial energy cost 78.84 $/year 29.78 $/year
Typical power consumption 73.13W 27.63W

bus

Architecture FSB FSB
Number of links 1 1
Clock speed 1,066 MHz 667 MHz

details

Xeon E7420  vs
Core2 Duo T7600 
Architecture x86-64 x86-64
Threads 4 2
L2 cache 8 MB 4 MB
L2 cache per core 2 MB/core 2 MB/core
Manufacture process 45 nm 65 nm
Transistor count 1,900,000,000 291,000,000
Max CPUs 32 1
Clock multiplier 8 14
Voltage range 0.9 - 1.45V 1.04 - 1.3V

overclocking

Overclocked clock speed 2.13 GHz 2.76 GHz
Overclocked clock speed (Water) 2.13 GHz 2.33 GHz
Overclocked clock speed (Air) 2.13 GHz 2.76 GHz

integrated graphics

GPU None None
Label N/A N/A
Latest DirectX N/A N/A
Number of displays supported N/A N/A
GPU clock speed N/A N/A
Turbo clock speed N/A N/A
3DMark06 N/A N/A
Intel Xeon E7420
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Intel Core2 Duo T7600
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