CPUBoss Review Our evaluation of E6700 vs E8400

Performance

Benchmark performance using all cores

Passmark, GeekBench (32-bit) and GeekBench (64-bit)

Single-core Performance

Individual core benchmark performance

Passmark (Single Core)

Overclocking

How much speed can you get out of the processor?

overclock popularity

Value

Are you paying a premium for performance?

Performance Per Dollar

CPUBoss Score

Performance, Single-core Performance, Overclocking and Value

Winner
Intel Core2 Duo E8400 

CPUBoss recommends the Intel Core2 Duo E8400  based on its value.

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Differences What are the advantages of each

Front view of Intel Pentium E6700

Reasons to consider the
Intel Pentium E6700

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Higher clock speed 3.2 GHz vs 3 GHz More than 5% higher clock speed
Newer Apr, 2010 vs Jan, 2008 Release date over 2 years later
Better geekbench (64-bit) score 5,335 vs 3,092 Around 75% better geekbench (64-bit) score
Higher Maximum operating temperature 74.1 °C vs 72.4 °C Almost the same
Front view of Intel Core2 Duo E8400

Reasons to consider the
Intel Core2 Duo E8400

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Significantly more l2 cache 6 MB vs 2 MB 3x more l2 cache; more data can be stored in the l2 cache for quick access later
Much more l2 cache per core 3 MB/core vs 1 MB/core 3x more l2 cache per core
Much better performance per dollar 20.33 pt/$ vs 5.42 pt/$ Around 3.8x better performance per dollar
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing

Benchmarks Real world tests of Pentium E6700 vs Core2 Duo E8400

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench (64-bit) Data courtesy Primate Labs

GeekBench

3D Mark 11 (Physics)

Passmark

Passmark (Single Core)

Reviews Word on the street

Pentium E6700  vs Core2 Duo E8400 

8.1
9.1
I get 4.5 out of my chip, I'm sure i could go higher if the motherboard and memory could keep it stable.
Core2 Duo E8400

Specifications Full list of technical specs

summary

Pentium E6700  vs
Core2 Duo E8400 
Clock speed 3.2 GHz 3 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 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 5.01 pt/W 5.63 pt/W
Typical power consumption 52.81W 52.81W

details

Pentium E6700  vs
Core2 Duo E8400 
Architecture x86-64 x86-64
Threads 2 2
L2 cache 2 MB 6 MB
L2 cache per core 1 MB/core 3 MB/core
Manufacture process 45 nm 45 nm
Transistor count 228,000,000 410,000,000
Max CPUs 1 1
Clock multiplier 12 9
Voltage range 0.85 - 1.36V 0.85 - 1.36V
Operating temperature Unknown - 74.1°C Unknown - 72.4°C

overclocking

Overclock popularity 5 125
Overclock review score 3.5 4.5

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

Architecture FSB FSB
Number of links 1 1
Clock speed 1,066 MHz 1,333 MHz
Intel Pentium E6700
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Intel Core2 Duo E8400
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