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Differences What are the advantages of each

Front view of Intel Pentium 955

Reasons to consider the
Intel Pentium 955

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More threads 4 vs 2 Twice as many threads
Higher clock speed 3.46 GHz vs 3.33 GHz Around 5% higher clock speed
Significantly lower typical power consumption 105.63W vs 120.65W More than 10% lower typical power consumption
Much lower annual home energy cost 31.32 $/year vs 47.3 $/year Around 35% lower annual home energy cost
Front view of Intel Core2 Duo E8600

Reasons to consider the
Intel Core2 Duo E8600

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Much better PassMark score 2,415 vs 905 Around 2.8x better PassMark score
Much better PassMark (Single core) score 1,373 vs 796 More than 70% better PassMark (Single core) score
Much newer manufacturing process 45 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Supports dynamic frequency scaling Yes vs No Somewhat common; Allows for maximum performance when needed, while conserving power and minimizing heat production when not needed
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Significantly better overclocked clock speed (Air) 4.61 GHz vs 4.39 GHz More than 5% better overclocked clock speed (Air)
Significantly higher Maximum operating temperature 72.4 °C vs 68.6 °C More than 5% higher Maximum operating temperature
Newer Jul, 2008 vs Dec, 2005 Release date over 2 years later

Benchmarks Real world tests of Pentium 955 vs Core2 Duo E8600

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

Cinebench R10 32-Bit

Cinebench R10 32-Bit (Single Core)

sysmark 2007 (overall)

sysmark 2007 (3d)

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Pentium 955  vs
Core2 Duo E8600 
Clock speed 3.46 GHz 3.33 GHz
Cores Dual 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 No Yes

power consumption

TDP 130W 65W
Annual home energy cost 31.32 $/year 47.3 $/year
Annual commercial energy cost 113.88 $/year 113.62 $/year
Performance per watt 0.49 pt/W 1.1 pt/W
Typical power consumption 105.63W 120.65W

bus

Architecture FSB FSB
Number of links 1 1
Clock speed 1,066 MHz 1,333 MHz

details

Pentium 955  vs
Core2 Duo E8600 
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 376,000,000 410,000,000
Max CPUs 1 1
Clock multiplier 13 10
Voltage range 1.2 - 1.34V 0.85 - 1.36V
Operating temperature Unknown - 68.6°C Unknown - 72.4°C

overclocking

Overclocked clock speed 4.39 GHz 4.61 GHz
Overclocked clock speed (Water) 4.61 GHz 4.6 GHz
Overclocked clock speed (Air) 4.39 GHz 4.61 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
Intel Pentium 955
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Intel Core2 Duo E8600
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