CPUBoss Review Our evaluation of 805 vs E6600 among desktop CPUs

Performance

Benchmark performance using all cores

PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

Fire Strike

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

3.6

CPUBoss Score

Combination of all six facets

Winner
Intel Core2 Duo E6600 

CPUBoss recommends the Intel Core2 Duo E6600  based on its performance, single-core performance and overclocking.

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VS

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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Higher clock speed 2.66 GHz vs 2.4 GHz More than 10% higher clock speed
Significantly higher Maximum operating temperature 64.1 °C vs 60.1 °C More than 5% higher Maximum operating temperature
Front view of Intel Core2 Duo E6600

Reasons to consider the
Intel Core2 Duo E6600

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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 score 1,884 vs 534 More than 3.5x better PassMark score
Much better PassMark (Single core) score 1,257 vs 620 More than 2x better PassMark (Single core) score
Much better geekbench 2 (32-bit) score 2,163 vs 1,085 Around 2x better geekbench 2 (32-bit) 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 1.7 pt/W vs 0.71 pt/W More than 2.2x better performance per watt
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Much lower typical power consumption 52.81W vs 77.19W More than 30% lower typical power consumption
Much better overclocked clock speed (Water) 3.45 GHz vs 2.66 GHz Around 30% better overclocked clock speed (Water)
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 Jul, 2006 vs Jan, 2005 Release date over 1 years later

Benchmarks Real world tests of Pentium D 805 vs Core2 Duo E6600

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
Core2 Duo E6600
102,200 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
Core2 Duo E6600 
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 Yes
Instruction set extensions
SSE2
MMX
SSE3
SSE
Supplemental 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 1.7 pt/W
Typical power consumption 77.19W 52.81W

bus

Architecture FSB FSB
Number of links 1 1
Clock speed 533 MHz 1,066 MHz

details

Pentium D 805  vs
Core2 Duo E6600 
Architecture x86-64 x86-64
Threads 2 2
L2 cache 2 MB 4 MB
L2 cache per core 1 MB/core 2 MB/core
Manufacture process 90 nm 65 nm
Transistor count 230,000,000 291,000,000
Max CPUs 1 1
Clock multiplier 20 9
Voltage range 1.2 - 1.4V 0.85 - 1.5V
Operating temperature Unknown - 64.1°C Unknown - 60.1°C

overclocking

Overclocked clock speed 3.5 GHz 3.49 GHz
Overclocked clock speed (Water) 2.66 GHz 3.45 GHz
Overclocked clock speed (Air) 3.5 GHz 3.49 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 Core2 Duo E6600
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