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Differences What are the advantages of each

Front view of Intel Pentium D 805

Reasons to consider the
Intel Pentium D 805

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Much more l2 cache 2 MB vs 0.5 MB 4x more l2 cache; more data can be stored in the l2 cache for quick access later
Much more l2 cache per core 1 MB/core vs 0.25 MB/core 4x more l2 cache per core
Higher clock speed 2.66 GHz vs 2.4 GHz More than 10% higher clock speed
Better overclocked clock speed (Air) 3.5 GHz vs 3.4 GHz Around 5% better overclocked clock speed (Air)
Better overclocked clock speed (Water) 2.66 GHz vs 2.4 GHz More than 10% better overclocked clock speed (Water)
Front view of Intel Celeron E1600

Reasons to consider the
Intel Celeron E1600

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Much newer manufacturing process 65 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better PassMark (Single core) score 901 vs 620 More than 45% better PassMark (Single core) score
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
Much better performance per watt 1.19 pt/W vs 0.71 pt/W More than 65% better performance per watt
Much lower typical power consumption 52.81W vs 77.19W More than 30% lower typical power consumption
Much higher Maximum operating temperature 73.3 °C vs 64.1 °C Around 15% higher Maximum operating temperature
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 Apr, 2009 vs Jan, 2005 Release date over 4 years later

Benchmarks Real world tests of Pentium D 805 vs Celeron E1600

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Pentium D 805
95,000 MB/s
Celeron E1600
77,200 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Pentium D 805  vs
Celeron E1600 
Clock speed 2.66 GHz 2.4 GHz
Cores Dual core Dual core
Socket type
LGA 775

features

Has a NX bit Yes Yes
Supports trusted computing No No
Has virtualization support No No
Instruction set extensions
MMX
SSE
SSE2
SSE3
Supports dynamic frequency scaling No 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 0.71 pt/W 1.19 pt/W
Typical power consumption 77.19W 52.81W

bus

Architecture FSB FSB
Number of links 1 1
Clock speed 533 MHz 800 MHz

details

Pentium D 805  vs
Celeron E1600 
Architecture x86-64 x86-64
Threads 2 2
L2 cache 2 MB 0.5 MB
L2 cache per core 1 MB/core 0.25 MB/core
Manufacture process 90 nm 65 nm
Transistor count 230,000,000 105,000,000
Max CPUs 1 1
Clock multiplier 20 12
Voltage range 1.2 - 1.4V 0.85 - 1.5V
Operating temperature Unknown - 64.1°C Unknown - 73.3°C

overclocking

Overclocked clock speed 3.5 GHz 3.4 GHz
Overclocked clock speed (Water) 2.66 GHz 2.4 GHz
PassMark (Overclocked) 883.9 1,751.2
Overclocked clock speed (Air) 3.5 GHz 3.4 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 D 805
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Intel Celeron E1600
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