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Differences What are the advantages of each

Front view of Intel Core2 Duo E8400

Reasons to consider the
Intel Core2 Duo E8400

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Much higher clock speed 3 GHz vs 1.86 GHz More than 60% higher clock speed
Much better PassMark score 2,160 vs 1,193 More than 80% better PassMark score
Much better PassMark (Single core) score 1,251 vs 699 Around 80% better PassMark (Single core) score
Much better geekbench 2 (32-bit) score 2,826 vs 1,710 More than 65% better geekbench 2 (32-bit) score
Much newer manufacturing process 45 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better overclocked clock speed (Air) 4.22 GHz vs 3.11 GHz More than 35% better overclocked clock speed (Air)
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Much higher Maximum operating temperature 72.4 °C vs 60.1 °C More than 20% higher Maximum operating temperature
Much better overclocked clock speed (Water) 4.23 GHz vs 3.17 GHz Around 35% better overclocked clock speed (Water)
Newer Jan, 2008 vs Apr, 2007 Release date 9 months later
Front view of Intel Core2 Duo E6320

Reasons to consider the
Intel Core2 Duo E6320

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CPUBoss is not aware of any important advantages of the E6320 vs the E8400.

Benchmarks Real world tests of Core2 Duo E8400 vs E6320

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

Core2 Duo E8400
128,000 MB/s
Core2 Duo E6320
79,500 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

x264 HD 4.0

Core2 Duo E8400
33.59 fps
Core2 Duo E6320
20.77 fps

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core2 Duo E8400  vs
E6320 
Clock speed 3 GHz 1.86 GHz
Cores Dual core Dual core
Socket type
LGA 775

features

Has a NX bit Yes Yes
Supports trusted computing Yes No
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 65W 65W
Annual home energy cost 15.66 $/year 15.66 $/year
Annual commercial energy cost 56.94 $/year 56.94 $/year
Performance per watt 1.83 pt/W 1.2 pt/W
Typical power consumption 52.81W 52.81W

bus

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

details

Core2 Duo E8400  vs
E6320 
Architecture x86-64 x86-64
Threads 2 2
L2 cache 6 MB 4 MB
L2 cache per core 3 MB/core 2 MB/core
Manufacture process 45 nm 65 nm
Transistor count 410,000,000 291,000,000
Max CPUs 1 1
Clock multiplier 9 7
Voltage range 0.85 - 1.36V 0.85 - 1.5V
Operating temperature Unknown - 72.4°C Unknown - 60.1°C

overclocking

Overclocked clock speed 4.22 GHz 3.11 GHz
Overclocked clock speed (Water) 4.23 GHz 3.17 GHz
Overclocked clock speed (Air) 4.22 GHz 3.11 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 Core2 Duo E8400
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Intel Core2 Duo E6320
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