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Differences What are the advantages of each

Front view of Intel Xeon X3230

Reasons to consider the
Intel Xeon X3230

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Much more l2 cache 8 MB vs 6 MB Around 35% more l2 cache; more data can be stored in the l2 cache for quick access later
More cores 4 vs 2 Twice as many cores; run more applications at once
More threads 4 vs 2 Twice as many threads
Better PassMark score 3,443 vs 2,160 Around 60% better PassMark score
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
Higher clock speed 3 GHz vs 2.66 GHz Around 15% higher clock speed
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 performance per dollar 0.67 pt/$ vs 0.3 pt/$ Around 2.2x better performance per dollar
Better overclocked clock speed (Air) 4.22 GHz vs 3.5 GHz More than 20% better overclocked clock speed (Air)
Higher Maximum operating temperature 72.4 °C vs 60.4 °C Around 20% higher Maximum operating temperature
Better PassMark (Single core) score 1,251 vs 1,039 More than 20% better PassMark (Single core) score
Much better overclocked clock speed (Water) 4.23 GHz vs 2.66 GHz Around 60% better overclocked clock speed (Water)
Better performance per watt 1.83 pt/W vs 0.92 pt/W Around 2x better performance per watt
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
Newer Jan, 2008 vs Jul, 2007 Release date 6 months later

Benchmarks Real world tests of Xeon X3230 vs Core2 Duo E8400

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon X3230
2,522.5

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon X3230
1,430.5

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon X3230
136.55 MB/s
Core2 Duo E8400
128,000 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon X3230  vs
Core2 Duo E8400 
Clock speed 2.66 GHz 3 GHz
Cores Quad core Dual core
Socket type
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
Performance per watt 0.92 pt/W 1.83 pt/W
Typical power consumption 77.19W 52.81W

details

Xeon X3230  vs
Core2 Duo E8400 
Architecture x86-64 x86-64
Threads 4 2
L2 cache 8 MB 6 MB
L2 cache per core 2 MB/core 3 MB/core
Manufacture process 65 nm 45 nm
Transistor count 582,000,000 410,000,000
Max CPUs 1 1
Clock multiplier 10 9
Operating temperature Unknown - 60.4°C Unknown - 72.4°C

overclocking

Overclocked clock speed 3.5 GHz 4.22 GHz
Overclocked clock speed (Water) 2.66 GHz 4.23 GHz
Overclocked clock speed (Air) 3.5 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

bus

Architecture FSB FSB
Number of links 1 1
Clock speed 1,066 MHz 1,333 MHz
Intel Xeon X3230
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Intel Core2 Duo E8400
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