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Differences What are the advantages of each

Front view of Intel Xeon 7150N

Reasons to consider the
Intel Xeon 7150N

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Much more l2 cache 16 MB vs 6 MB Around 2.8x 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 3 MB/core Around 2.8x more l2 cache per core
Higher clock speed 3.5 GHz vs 3 GHz More than 15% higher clock speed
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 newer manufacturing process 45 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much lower typical power consumption 52.81W vs 121.88W 2.3x lower typical power consumption
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Much lower annual home energy cost 15.66 $/year vs 36.13 $/year 2.3x lower annual home energy cost
Much lower annual commercial energy cost 56.94 $/year vs 131.4 $/year 2.3x lower annual commercial energy cost
Slightly higher Maximum operating temperature 72.4 °C vs 69 °C Around 5% higher Maximum operating temperature

Features Key features of the Xeon 7150N  vs Core2 Duo E8400 

clock speed

Xeon 7150N
3.5 GHz

L2 cache

Specifications Full list of technical specs

summary

Xeon 7150N  vs
Core2 Duo E8400 
Clock speed 3.5 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 150W 65W
Annual home energy cost 36.13 $/year 15.66 $/year
Annual commercial energy cost 131.4 $/year 56.94 $/year
Typical power consumption 121.88W 52.81W

details

Xeon 7150N  vs
Core2 Duo E8400 
Architecture x86-64 x86-64
Threads 4 2
L2 cache 16 MB 6 MB
L2 cache per core 8 MB/core 3 MB/core
Manufacture process 65 nm 45 nm
Transistor count 1,328,000,000 410,000,000
Max CPUs 32 1
Voltage range 1.1 - 1.35V 0.85 - 1.36V
Operating temperature Unknown - 69°C Unknown - 72.4°C

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

bus

Architecture FSB FSB
Number of links 1 1
Clock speed 667 MHz 1,333 MHz
Intel Xeon 7150N
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Intel Core2 Duo E8400
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