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Differences What are the advantages of each

Front view of Intel Core2 Duo T6400

Reasons to consider the
Intel Core2 Duo T6400

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Significantly more l2 cache per core 1 MB/core vs 0.5 MB/core 2x more l2 cache per core
Lower typical power consumption 28.44W vs 60.94W 2.1x lower typical power consumption
Better overclocked clock speed (Water) 4.91 GHz vs 2.6 GHz Around 90% better overclocked clock speed (Water)
Lower annual home energy cost 8.43 $/year vs 18.07 $/year 2.1x lower annual home energy cost
Lower annual commercial energy cost 30.66 $/year vs 65.7 $/year 2.1x lower annual commercial energy cost
Newer Jan, 2009 vs Nov, 2008 Release date 1 months later
Front view of AMD Opteron 8382

Reasons to consider the
AMD Opteron 8382

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Supports more CPUs in SMP configuration 8 vs 1 7 supports more CPUs in SMP configuration
Higher clock speed 2.6 GHz vs 2 GHz More than 30% higher clock speed
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
More cores 4 vs 2 Twice as many cores; run more applications at once

Features Key features of the Core2 Duo T6400  vs Opteron 8382 

clock speed

L2 cache

overclocked clock speed (air)

Core2 Duo T6400
2.45 GHz
Opteron 8382
2.61 GHz

overclocked clock speed (water)

Core2 Duo T6400
4.91 GHz
Opteron 8382
2.6 GHz

Specifications Full list of technical specs

summary

Core2 Duo T6400  vs
Opteron 8382 
Clock speed 2 GHz 2.6 GHz
Cores Dual core Quad core
Socket type
478
F

features

Has a NX bit Yes Yes
Has virtualization support No Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE3
SSE
SSE4.1
3DNow!
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 35W 75W
Annual home energy cost 8.43 $/year 18.07 $/year
Annual commercial energy cost 30.66 $/year 65.7 $/year
Typical power consumption 28.44W 60.94W

details

Core2 Duo T6400  vs
Opteron 8382 
Threads 2 4
L2 cache 2 MB 2 MB
L2 cache per core 1 MB/core 0.5 MB/core
Manufacture process 45 nm 45 nm
Max CPUs 1 8
Clock multiplier 10 13
Voltage range 1 - 1.25V 1.3 - UnknownV

overclocking

Overclocked clock speed 2.45 GHz 2.61 GHz
Overclocked clock speed (Water) 4.91 GHz 2.6 GHz
Overclocked clock speed (Air) 2.45 GHz 2.61 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

Clock speed 800 MHz 2,200 MHz
Intel Core2 Duo T6400
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AMD Opteron 8382
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