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Differences What are the advantages of each

Front view of Intel Xeon 7120N

Reasons to consider the
Intel Xeon 7120N

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Supports more CPUs in SMP configuration 32 vs 1 31 supports more CPUs in SMP configuration
More threads 4 vs 2 Twice as many threads
Front view of Intel Core2 Duo E8400

Reasons to consider the
Intel Core2 Duo E8400

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Much more l2 cache 6 MB vs 4 MB 50% 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
Much more l2 cache per core 3 MB/core vs 2 MB/core 50% more l2 cache per core
Significantly lower typical power consumption 52.81W vs 77.19W More than 30% lower typical power consumption
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Significantly better overclocked clock speed (Air) 4.22 GHz vs 3 GHz More than 40% better overclocked clock speed (Air)
Higher Maximum operating temperature 72.4 °C vs 60 °C More than 20% higher Maximum operating temperature
Newer Jan, 2008 vs Aug, 2006 Release date over 1 years later
Significantly better overclocked clock speed (Water) 4.23 GHz vs 3 GHz More than 40% better overclocked clock speed (Water)
Significantly lower annual home energy cost 15.66 $/year vs 22.89 $/year More than 30% lower annual home energy cost
Significantly lower annual commercial energy cost 56.94 $/year vs 83.22 $/year More than 30% lower annual commercial energy cost

Features Key features of the Xeon 7120N  vs Core2 Duo E8400 

clock speed

L2 cache

overclocked clock speed (air)

Xeon 7120N
3 GHz
Core2 Duo E8400
4.22 GHz

overclocked clock speed (water)

Xeon 7120N
3 GHz
Core2 Duo E8400
4.23 GHz

Specifications Full list of technical specs

summary

Xeon 7120N  vs
Core2 Duo E8400 
Clock speed 3 GHz 3 GHz
Cores Dual core Dual core
Socket type
604
LGA 775

features

Has a NX bit Yes Yes
Supports trusted computing No Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE3
SSE
SSE4.1
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 95W 65W
Annual home energy cost 22.89 $/year 15.66 $/year
Annual commercial energy cost 83.22 $/year 56.94 $/year
Typical power consumption 77.19W 52.81W

bus

Architecture FSB FSB
Number of links 1 1
Clock speed 667 MHz 1,333 MHz

details

Xeon 7120N  vs
Core2 Duo E8400 
Architecture x86-64 x86-64
Threads 4 2
L2 cache 4 MB 6 MB
L2 cache per core 2 MB/core 3 MB/core
Manufacture process 65 nm 45 nm
Transistor count 1,328,000,000 410,000,000
Max CPUs 32 1
Clock multiplier 18 9
Voltage range 1.1 - 1.35V 0.85 - 1.36V
Operating temperature Unknown - 60°C Unknown - 72.4°C

overclocking

Overclocked clock speed 3 GHz 4.22 GHz
Overclocked clock speed (Water) 3 GHz 4.23 GHz
Overclocked clock speed (Air) 3 GHz 4.22 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 7120N
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Intel Core2 Duo E8400
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